#Stainless Steel 317/317L Boiler Tubes

[metinoxoverseas123]

Top Benefits of Using Stainless Steel 317/317L Boiler Tubes

Boiler tubes are critical components in power generation and industrial heating systems, demanding materials that can withstand high temperatures and pressures. Among the various materials used, stainless steel 317 and 317L stand out for their superior performance in challenging environments. This article delves into the unique properties, applications, and benefits of Stainless Steel 317/317L boiler tubes.

Understanding Stainless Steel 317 and 317L

Stainless Steel 317 is a high-alloy austenitic stainless steel known for its exceptional corrosion resistance, especially against sulfuric and phosphoric acids. This alloy is characterized by its high chromium, nickel, and molybdenum content, which enhances its resistance to pitting and crevice corrosion.

Stainless Steel 317L is the low-carbon version of 317, offering similar corrosion resistance with improved weldability. The lower carbon content minimizes the risk of carbide precipitation during welding, making it ideal for applications where welding is required.

Key Properties of Stainless Steel 317/317L Boiler Tubes

Corrosion Resistance: The high molybdenum content provides excellent resistance to chloride pitting and general corrosion, making these tubes suitable for use in highly corrosive environments.

High-Temperature Strength: Stainless Steel 317/317L maintains strength and structural integrity at elevated temperatures, crucial for boiler tube applications.

Good Weldability: Particularly with 317L, the lower carbon content ensures reduced carbide precipitation, enhancing the weldability and making it easier to fabricate complex boiler systems.

Durability: The alloys offer long-term durability, reducing maintenance costs and downtime.

Applications of Stainless Steel 317/317L Boiler Tubes

Stainless Steel 317 and 317L boiler tubes are used across various industries due to their resilience and performance in harsh conditions. Key applications include:

Power Generation: In boilers and heat exchangers, where high-temperature steam and corrosive conditions are prevalent.

Chemical Processing: For handling aggressive chemicals and high-temperature processes.

Oil and Gas Industry: In refineries and offshore platforms where corrosion resistance and strength are paramount.

Pharmaceuticals: For systems requiring stringent hygiene standards and resistance to aggressive cleaning agents.

Benefits of Using Stainless Steel 317/317L Boiler Tubes

Enhanced Corrosion Resistance: Suitable for both acidic and chloride-rich environments, reducing the risk of tube failure and extending service life.

Cost-Effective: Despite the higher initial cost, the long lifespan and reduced maintenance needs offer better lifecycle cost efficiency.

Versatility: The ability to perform in a range of temperatures and pressures makes these tubes versatile for multiple industrial applications.

Sustainability: Stainless steel is recyclable, aligning with environmental sustainability goals.

Conclusion

Stainless Steel 317 and 317L boiler tubes are integral to industries requiring reliable performance under extreme conditions. Their superior corrosion resistance, high-temperature strength, and weldability make them a preferred choice for demanding applications. By choosing these materials, industries can ensure efficient, durable, and cost-effective operations.

For more information on Stainless Steel 317/317L boiler tubes and their applications, consult with a trusted supplier to find the best solutions tailored to your specific needs.

[metinox]

 Stainless Steel 317/317L Boiler Tubes Exporters In India

Metinox Overseas is a renowned manufacturer, exporter, stockist, stockholder, and supplier of a qualitative range of Stainless Steel 317/317L Boiler Tubes. SS 317 Boiler Tubes (also known as UNS S31700 and WNR 1.4449) find typical applications in various industries, including boat fittings, structural members, architectural components in marine, polluted or industrial environments, food and beverage processing equipment, hot water systems, and plants for chemical, petrochemical, mineral processing, photographic, and other industries.

Product Overview :

Stainless Steel 317L Boiler Tubes (also referred to as UNS S31703 and WNR 1.4438) are similar to SS 316 Boiler Tubes but offer improved resistance to atmospheric corrosion, many organic and inorganic chemicals, and food and beverages. Designed to meet both national and international standard quality of raw materials, our SS Boiler Tubes are available in various sizes and can be customized to meet specific requirements at affordable rates for our esteemed clients.

Stainless Steel 317/317L Boiler Tubing Specification:

Specifications : ASTM A / ASME SA213 A312

Range : 6.35 mm OD upto 152.4 mm OD in 0.6 TO 10 mm thickness.

Form : Round, Square, Rectangular, Coil, U Tube, Pan Cake.

Wall Thickness : 0.50 mm TO 6.0 mm

End : Plain End, Bevelled End

Length : Single Random, Double Random & Required Length

Types : Seamless / ERW / Welded

Application of Stainless Steel 317/317L Boiler Tubes :

1. High-Temperature Boilers: Stainless Steel 317 and 317L are commonly used in power plants and other high-temperature boiler systems that require materials resistant to corrosion and oxidation at elevated temperatures. These alloys maintain their strength and integrity under thermal cycling, making them ideal for industrial boilers that operate at high pressures and temperatures.

2. Heat Exchangers: Due to their excellent thermal conductivity and resistance to scaling and corrosion, Stainless Steel 317/317L tubes are employed in heat exchangers in various industries, including power generation, petrochemical, and chemical processing.

3. Fossil Fuel Power Plants: The superior resistance to sulfuric acid and chloride stress corrosion cracking makes 317/317L stainless steel ideal for applications in fossil fuel power plants, where acidic gases or harsh conditions are present.

4.Superheaters and Reheaters: Due to their heat-resistance and ability to withstand high pressure, these stainless steel grades are often used in the construction of superheaters and reheaters in steam generation systems.

Conclusion :

Stainless Steel 317 and 317L boiler tubes are highly advantageous materials for applications in industries that require resistance to high temperatures, pressure, and corrosive environments. Their excellent resistance to corrosion, oxidation, and scaling, combined with good weldability and formability, makes them ideal for use in critical applications such as boilers, heat exchangers, superheaters, and reheaters in power generation, petrochemical, and chemical industries.

[nickelalloytubes]

ASTM A249/ASME SA249 STAINLESS STEEL TUBE

ASTM A249/ASME SA249 stainless steel tube covers nominal wall thicknesses welded and heavily cold-worked welded pipes made of the following materials

Various grades of austenitic steel for boilers, superheaters, heat exchangers, or condenser pipes.

ASTM A249/ASME SA249 STAINLESS STEEL TUBE PROVIDED BY YUHONG

ASTM A249/ASME SA249 Stainless Steel Tube

YUHONG GROUP provides the best ASTM A249/ASME SA249 Stainless steel tubes including welded austenitic alloy steel boiler tube, superheater and heat exchanger tube, and U bending tube.

TP304/TP304L Stainless Steel Tube

TP316/TP316L Stainless Steel Tube

ASTM A249 TUBING FEATURES

ASTM A249/ASME SA249 stainless steel tube has good plasticity, low strength, and hardness. At the same time, ASTM A 249 also has a certain toughness, but it is not ferromagnetic.

ASTM A249/ASME SA249 stainless steel tube is not only resistant to oxidative acid medium corrosion, but also resistant to sulfuric acid, phosphoric acid, formic acid, acetic acid, urea, etc. if it contains Mo, Cu, and other elements. If the carbon content of ASME SA249/ASTM A249 tubing is less than 0.03% or contains Ti and Ni, the resistance of this SS steel tube to intergranular corrosion can be significantly improved.

ASME SA249/ ASTM A249 TP304 SPECIFICATIONS

ASTM A249 Standard

ASTM A249/ASME SA249

Tube Type

Welded Tube

Finishes

Annealing Pickling, Bright Annealing

Outside Diameter

6 Up To 304.8 Mm

Thickness

0.5 Up To 6 Mm

Application

Heat Exchanger System

GRADES OF SPECIFICATION ASTM A249/SA 249

Grade

Specification

Stainless 304/304L, 304/304H

ASTM A249/SA249

Stainless 309S

ASTM A249/SA249

Stainless 310S

ASTM A249/SA249

Stainless 316/316L, 316/316H

ASTM A249/SA249

Stainless 317/317L

ASTM A249/SA249

Stainless 321/321H

ASTM A249/SA249

Stainless 347/347H

ASTM A249/SA249

ASME SA249/ ASTM A 249 TUBING CHEMICAL COMPOSITION

Grade

UNS

Composition, %

Design

C

Mn

P

S

Si

Cr

Ni

Mb

Ti

Nb

N

Cu

Ce

B

Al

TP304

S30400

0.08

2

0.045

0.03

1

18.0–20

8.0–11

. . .

. . .

. . .

. . .

. . .

. . .

TP304L

S30403

0.035

2

0.045

0.03

1

18.0–20

8.0–13

. . .

. . .

. . .

. . .

. . .

. . .

TP304H

S30409

0.04 – 0.1

2

0.045

0.03

1

18.0–20

8.0–11

. . .

. . .

. . .

. . .

. . .

. . .

TP310S

S31008

0.08

2

0.045

0.03

1

24.0- 26

19.0- 22

0.8

. . .

. . .

. . .

. . .

. . .

TP310H

S31009

0.04 – 0.1

2

0.045

0.03

1

24.0–26

19.0–22

. . .

. . .

. . .

. . .

. . .

TP310H

S31035

0.04 – 0.1

0.6

0.025

0.015

0.4

21.5–23.5

23.5–26.5

. . .

. . .

0.40- 0.6

0.20- 0.3

2.5- 3.5

. . .

0.002- 0.008

TP316

S31600

0.08

2

0.045

0.03

1

16.0–18

10.0–14

2.00–3

. . .

. . .

. . .

. . .

. . .

TP316L

S31603

0.035

2

0.045

0.03

1

16.0–18

10.0–14

2.00–3

. . .

. . .

. . .

. . .

. . .

TP316H

S31609

0.04 – 0.1

2

0.045

0.03

1

16.0–18

10.0–14

2.00–3

. . .

. . .

. . .

. . .

. . .

TP317

S31700

0.08

2

0.045

0.03

1

18.0–20

11.0–15

3.0–4

. . .

. . .

. . .

. . .

. . .

TP317L

S31703

0.035

2

0.045

0.03

1

18.0–20

11.0–15

3.0–4

. . .

. . .

. . .

. . .

. . .

TP321

S32100

0.08

2

0.045

0.03

1

17.0–19

9.0–12

. . .

Ti 5 × (C+N) min, 0.70 max

. . .

0.1

. . .

. . .

TP321H

S32109

0.04 – 0.1

2

0.045

0.03

1

17.0–19

9.0–12

. . .

4(C+N) min; 0.70 max

. . .

0.1

. . .

. . .

TP321H

S32654

0.02

2.0-4

0.03

0.005

0.5

24.0–25

21.0–23

7.0-8

. . .

. . .

0.45- 0.55

0.30-0.6

. . .

TP321H

S33228

0.04 – 0.08

1

0.02

0.015

0.3

26.0–28

31.0–33

. . .

. . .

0.60- 1

. . .

. . .

0.05 – 0.1

0.025

TP321H

S34565

0.03

5.0-7

0.03

0.01

1

23.0–25

16.0–18

4.0-5

. . .

0.1

0.40- 0.6

. . .

. . .

TP347

S34700

0.08

2

0.045

0.03

1

17.0–19

9.0–13

. . .

. . .

See Spec

. . .

. . .

. . .

TP347H

S34709

0.04 – 0.1

2

0.045

0.03

1

17.0–19

9.0–13

. . .

. . .

See Spec

. . .

. . .

. . .

TP348

S34800

0.08

2

0.045

0.03

1

17.0–19

9.0–13

. . .

. . .

. . .

. . .

. . .

. . .

Co 0.20, Ta 0.10

TP348H

S34809

0.04-0.10

2

0.045

0.03

1

17.0–19.0

9.0–13

. . .

. . .

. . .

. . .

. . .

. . .

. . .

Co 0.20, Ta 0.10

ASME SA249/ ASTM A 249 TUBING SIZE TOLERANCE

OD

WTH

L

ASTM A249

＜25.4mm

±0.10mm

±10.00%

OD＜50.8mm +3.0mm -0mm

≥25.4mm-38.1mm

±0.15mm

≥38.1mm-50.8mm

±0.20mm

≥50.8mm-63.5mm

±0.25mm

≥63.5mm-76.2mm

±0.30mm

OD≥50.8mm +5.0 -0mm

≥76.2mm-101.6mm

±0.38mm

≥101.6mm-190.5mm

+0.38mm -0.64mm

≥190.5mm-228.6mm

+0.38mm -1.14mm

WHAT IS ASME ASTM SA 249 STAINLESS STEEL TUBE?

ASME ASTM SA 249 stainless steel tubes are used in a variety of applications, including boiler, superheater, heat exchanger, and condenser systems. These a249 stainless steel tubes are manufactured through a welding process and are typically made from austenitic stainless steel, although other stainless steel grades may also be used.

The astm a249 tp304 specification outlines the requirements for the manufacturing, dimensions, mechanical properties, and testing of these welded stainless steel tubes. It provides guidelines for various aspects, including tube dimensions, tolerances, chemical composition, mechanical properties, and nondestructive testing methods.

The stainless steel tubes produced under the ASME ASTM SA 249 standard are designed to withstand high temperatures, corrosion, and pressure in demanding industrial environments. ASME sa249 are known for their excellent corrosion resistance, strength, and durability, making them suitable for applications where reliability and longevity are essential.

Common stainless steel grades used in ASME ASTM SA 249 tubes include 304, 304L, 316, 316L, 317, and 321. These grades offer varying levels of corrosion resistance, mechanical properties, and heat resistance, allowing for the selection of the most appropriate grade based on the specific application requirements.

Overall, ASME ASTM SA 249 stainless steel tubes meet stringent industry standards, ensuring that they are manufactured to the specified dimensions, quality, and performance criteria. These ASTM a249 tubings play a critical role in various industrial sectors, providing efficient and reliable solutions for heat exchanger tube manufacturers and fluid transportation systems.

ASTM A249 VS A269 STAINLESS STEEL TUBE

Applications: ASTM A249 tubes are primarily intended for general corrosion-resisting and low- or high-temperature service, including heat exchangers, condenser tubes, and other applications. ASTM A269 tubes, on the other hand, are specifically designed for general service applications requiring high corrosion resistance and mechanical properties.

Manufacturing Process: ASTM A249 tubing is produced through the welding process, while a269 tubing can be either welded or seamless. Seamless stainless steel tubes are typically preferred for high-pressure or critical applications.

Dimensional Tolerances: ASTM a249 tubing has more lenient dimensional tolerances compared to ASTM A269. A269 tubes have tighter tolerances for outside diameter, wall thickness, and length, ensuring greater precision and consistency.

Surface Finish: ASTM A269 specifies stricter requirements for the surface finish of tubes, particularly for applications where cleanliness and smoothness are important, such as in the pharmaceutical and food processing industries.

[huashangsteel]

Stainless Steel Capillary Tubes

https://www.sstubecn.com/stainless-steel-tubing/stainless-steel-capillary-tubes.html

Stainless Steel Capillary Tube Description:

Whether you need to exchange device tubing as a section of your troubleshooting or want to minimize the dwell extent of your system as you pass to narrower columns, WENZHOU HUASHANG STEEL CO., LTD. has the first-rate tubing in the lengths. Tubing is precision cut, resulting in clean, square-cut ends besides ovality. This steel capillary tube also features lean and easy floor finish.

 Capillary Tubing from WENZHOU HUASHANG STEEL CO., LTD. owns the following features as good flexibility, corrosion resistance, high-temperature resistance, tensile strength, water resistance, etc. For the capillary tube, the minimum size is up to 0.19mm and minimum thickness is 0.02mm, and our tolerance is very small. One of bright annealing advantages is that all bright annealed techniques makes a clean inner surface. High finish, no oil or grease particles ensure the optimal and uniform flow of liquids and gases from the sensor to the measuring instrument.

 The stainless steel capillary tube has good corrosion resistance, high-temperature resistance, anti-wear, anti-pilling and good flexibility and other functions. It can also shield electromagnetic properties and be bent freely to form a wide variety of bending angles. The stainless steel capillary tube can be kept from deforming regardless of the rotation to each angle, bring convenient for our daily life.

 Stainless steel capillary tube produces a radiation-resistant alloy steel in the air. Because of its aesthetically pleasing surface and good corrosion properties, the stainless steel capillary tube doesn't require color plating. In order to ensure the corrosion resistance of the stainless steel capillary, it is necessary to select a steel containing more than 12% chromium when selecting the steel.

 HUASHANG is a professional stainless steel capillary tube manufacturer, producing various metal capillary tube, including 304 stainless steel capillary tubes for sale, whose ss capillary tube is applied to many industries such as chemical, petroleum, electronics, medical, aerospace, air conditioning, medical equipment, pharmaceutical, boiler, and other fields. Also, there are a lot of products like injection needle tube, puncture needle tube, hexagon tube, beauty needle tube, temperature sensor tube, thermometer tube, thermostat tube, capillary coiled tubing, etc.

 Stainless Steel Capillary Tubes Material:

Austenitic Stainless Steel:

TP304, TP304L, TP304H, TP304LN, TP316/TP316L, TP316H, TP316Ti, TP316LN, TP321, TP321H, TP317, TP317L, TP347, TP347H, TP310S, TP310H, TP904L, 254Mo.S30432, S31042, N08367

 Duplex & Super Duplex Steel:

S31500, S32101, S32003, S32304, S31803, S32205, S32750, S32760

Nickel Alloy Steel: N06600, N06601, N06625, N0771, N08800, N08825, N10276, N04400, N05500, N02200, N02201, N08028, N08810, N08811, N08020, N10624, N10629, N10675

 Material Features of  304 Stainless Steel Capillary Tube:

1. silver gloss on the stainless steel surface

2. No toxic & non-polluting substances, environmentally friendly,

3. Mixed nickel and chrome combination, acid-resistant and alkali-resistant

4. Durable and not easily damaged

5. Strong anti-oxidation ability in a humid environment

6. hardness is 2 times higher than copper

 Length: Cut to Length

 Stainless Steel Capillary Tubes Sizes & Tolerance

Production name

OD/mm

OD tolerance/mm

W.T/mm

W.T tolerance/mm

 Capillary tube

0.8-2.0

+-0.02

0.08

+-0.01

 2.0-6.0

+-0.02

0.1-0.5

+-0.02

6.0-10.0

+-0.03

0.5-1.5

+-0.02

super capillary tube

<0.8

+-0.02/or samler

0.02-0.08

+-0.01/or smaller

 Chemical Composition of Nickel Alloy, Duplex steel & Austenitic Steel

Grade

C

Si

Mn

P

S

Cr

Ni

Mo

Ti

N

Cu

Fe

Al

Co

Zr

Nb

Tu

Va

 Max

Max

Max

Max

Max

    Max

Max

Max

Max

Max

    Nickel Alloy

Inconel 600/No6600/2.4816

0.15

0.5

1

 0.015

14-17

≧72

   0.5

6.0-10.0

      Inconel 600/No6601/2.4851

0.1

0.5

1.5

 0.015

21-25

58-63

   1

 1.0-1.7

     Inconel 690/No6690

0.05

0.5

0.5

 0.015

27-31

58

   0.5

7.0-11.0

      Inconel 625/No6625/2.4856

0.1

0.5

0.5

0.015

0.015

20-23

≧58

8.0-10.0

≦0.4

  5

≦0.4

  3.15-4.15

  Inconel 718/No7718/2.4668

0.08

0.35

0.35

0.015

0.015

17-21

50-55

2.8-3.3

0.65-1.15

0.006

0.3

Remainder

0.2-0.8

  4.75-5.5

  Incoloy 800/No8800/1.4876

0.1

1

1.5

 0.015

19-23

30-35

 0.15-0.6

 0.75

≧39.5

0.15-0.6

     Incoloy 800H/No8810/1.4958

0.05-0.1

1

1.5

 0.015

19-23

30-35

 0.6-1.2

 0.75

≧39.5

0.15-0.6

1

    Incoloy 825/No8825/2.4858

0.05

0.5

1

 0.03

19.5-23.5

38-46

2.5-3.5

  1.5-3

≧22

0.2

     C-276/No10276/2.4819

0.01

0.08

1

0.04

0.03

14.5-16.5

Balance

15.0-17.0

   4.0-7.0

  2.5

 3-4.5

0.35

Monel 400/No4400/2.4360

0.3

0.5

2

 0.024

 ≧63

   28-34

2.5

      Monel K-500/No5500

0.18

0.5

1.5

 0.01

 63

 0.35-0.85

 27-33

2

2.3-3.15

     Alloy 20/No8020/2.4660

0.07

1

2

0.045

0.035

19-21

32-38

2.0-3.0

  3.0-4.0

Balance

   8C-1

  Alloy 28/No8028

0.03

1

2.5

0.03

0.03

26-28

30-34

3.0-4.0

  0.6-1.4

Remainder

      Duplex Steel

S31803/1.4462

0.03

1

2

0.03

0.02

21-23

4.5-6.5

2.5-3.5

 0.08-0.2

        S32205/1.4462

0.03

1

2

0.03

0.02

22-23

4.5-6.5

3.0-3.5

 0.14-0.2

        S32750/1.4410

0.03

0.8

1.2

0.035

0.02

24-26

6.0-8.0

3.0-3.5

 0.24-0.32

0.5

       S32760/1.4501

0.05

1

1

0.03

0.01

24-26

6.0-8.0

3.0-4.0

 0.2-0.3

0.5-1.0

       Austenitic

304/1.4301

0.08

1

2

0.045

0.03

18-20

8-10.5

           304L/1.4307

0.035

1

2

0.045

0.03

18-20

8.0-12.0

           304H/1.4948

0.04-0.1

1

2

0.045

0.03

18-20

8.0-11.0

           316/1.4401

0.08

1

2

0.045

0.03

16-18

11.0-14.0

2.0-3.0

          316L/1.4404

0.035

1

2

0.045

0.03

16-18

10.0-14.0

2.0-3.0

          316H/1.4919

0.04-0.1

1

2

0.045

0.03

16-18

10.0-14.0

2.0-3.0

 0.1

        316Ti/1.4571

0.08

1

2

0.045

0.03

16-18

10.0-14.0

2.0-3.0

0.7>5x(C+N)

         321/1.4541

0.08

1

2

0.045

0.03

17-19

9.0-12.0

 0.7>5x(C+N)

         321H/1.4878

0.04-0.1

1

2

0.045

0.03

17-19

9.0-12.0

 H

         317/1.4449

0.08

1

2

0.045

0.03

18-20

11.0-14.0

3.0-4.0

          317L/1.4438

0.035

1

2

0.045

0.03

18-20

11.0-15.0

3.0-4.0

          347/1.4550

0.08

1

2

0.045

0.03

17-19

9.0-12.0

           347H/1.4912

0.04-0.1

1

2

0.045

0.03

17-19

9.0-13.0

           310S/1.4845

0.08

1

2

0.045

0.03

24-26

19.0-22.0

  0.11

        310H/1.4845

0.04-0.1

1

2

0.045

0.03

24-26

19.0-22.0

           N08904(904L)/1.4539

0.02

1

2

0.045

0.03

19-23

23.0-28.0

4.0-5.0

 0.1

1.0-2.0

       S31254(254Mo)/1.4547

0.02

0.8

1

0.03

0.01

19.5-20.5

17.5-18.5

6.0-6.5

 0.18-0.22

0.5-1.0

[steelflanges-blog]

ASME 36.19 ASTM A312 TP904L SMLS Pipe 1/2 Inch SCH10S

FOB PriceUSD 8,00- 30,000/Piece

PortNingbo or Shanghai Port

MOQ1 Piece/Ton

Supply Ability1000 Tons Per Month

Payment TermsL/C,T/T,Western Union,MoneyGram

PackagingSeaworthy plywood cases or pallets

Delivery7- 20 days

Quick Details

 Thickness: SCH10S

 Section Shape: Round

 Outer Diameter: 1/2" (DN15)

 Place of Origin: Zhejiang, China (Mainland)

 Application: Construction, oil, gas, etc

 Technique: ERW

 Surface Treatment: Pickled, 2B, No.4, BA, Hairline, Mirror

 Material: 904L Stainless Steel, etc

 Standard: ASTM, ASME, etc

 Type: 904L SMLS Pipe

 Lenth: 3M

 Brand Name: Yaang

Packaging & Delivery

Packaging Detail:Standard export packing or as per requestDelivery Detail:7 - 20 days

Specifications

ASME 36.19 ASTM A312 TP904L SMLS Pipe

1. Seamless

2. Thickness: SCH10S

3. OD: 1/2" (DN15)

4. Lenth: 3M

China SMLS Pipe Manufacturer www.yaang.com offers ASME 36.19 ASTM A312 TP904L SMLS Pipe, 1/2 Inch, SCH10S.

ALLOY 904L is a multipurpose highly corrosion resistant stainless steel. The chromium, nickel, molybdenum and copper content of the alloy renders it suitable for many applications dealing with medium to corrosive environments. It is particularly useful in sulphuric acid applications where the range of concentrations and temperatures in which it can be used, is wider than that for grades such as 317L and duplex grade ALLOY 2205. This is in part due to the copper content of the alloy. In industrial grade phosphoric acid environments, the performance of ALLOY 904L / 1.4539 is again superior to that of 317L stainless steel and, at higher temperatures, duplex grade ALLOY 2205 as well. Performance in phosphoric acid is strongly influenced by the level of impurities present. The Alloy also has useful resistance to organic acids such as formic and oxalic acids. With respect to localised corrosion, the high nickel content of ALLOY 904L / 1.4539 makes it more resistant to stress corrosion cracking than other common austenitic stainless steels whilst the levels of chromium, molybdenum and nitrogen impart excellent resistance to pitting and crevice corrosion.

Composition ranges for 904L grade of stainless steels

Grade

C

Mn

Si

P

S

Cr

Mo

Ni

Cu

904L

min.

max.

-

0.02

-

2

-

1

-

0.045

-

0.035

19

23

4

5

23

28

1

2

Tolerance

a) Outer Diameter:  +/- 0.1mm

b) Wall Thickness: +/- 0.02mm

c) Length: +/- 6mm

Surface

180G, 320G, 400G Satin / Hairline 400G, 500G, 600G or

800G Mirror finish and so on.

 Standard 

 AISI, ASTM, DIN, EN, GB and JIS

ASTM A213,ASTM A312,ASTM A269,ASTM A778,ASTM A790

DIN 17456,DIN 17458

JIS G3459,JIS G3463 etc

Material

300series: 301,302,303,304,304L,309,309s,310,310S,316,316L,316Ti,317L,321,347

200series: 201,202,202cu,204

400series: 409,409L,410,420,430,431,439,440,441,444

Others: 2205,2507,2906,330,660,630,631,17-4ph,17-7ph, S318039 904L,etc

Duplex stainless steel: S22053,S25073,S22253,S31803,S32205,S32304

Special Stainless Steel: 904L,347/347H,317/317L,316Ti,254Mo

Application range

TP904L SMLS Pipe is widely used in below fields:

1).Petroleum,Chemical enterprise, superheater of boiler, heat exchanger

2).High temperature resistant transmission fluid pipe in power station

3).Ship with pressure pipe

4).The exhaust purification devices

5).Construction and ornament

Main market

We have frequenter customers from 

Europe: Germany,Netherland,Russia, Finland,Czech,Ukraine,Italy,Spain,Poland

Middle East: Iran,UAE,SA,Iraq,Qatar,Isreal,Jordan,Bahrain,Kuwait

South America: Brazil,Chile,Peru,Venezuela,Uruguay,Argentina

Africa: Egypt,South Africa,Nigeria

Central&North America: Mexico,US,Canada,Costa Rica

South East Asia and Pacific: Japan,South Korea,Singapore,Thailand,Indonesia,Australia

Delivery conditions

Annealed, pickled & polished.

Note

We can produce other standard as the customers’ requirement.

Typical physical properties of grade 904L stainless steels

Grade

Density(kg/m3)

Elastic Modulus(GPa)

Mean Co-eff of Thermal Expansion (µm/m/°C)

Thermal Conductivity(W/m.K)

Specific Heat 0-100°C(J/kg.K)

Elec Resistivity(nΩ.m)

0-100°C

0-315°C

0-538°C

At 20°C

At 500°C

904L

7900

190

15

-

-

11.5

-

500

952

Application of ASME 36.19 ASTM A312 TP904L SMLS Pipe 1/2 Inch SCH10S:

Food processing equipment, particularly in beer brewing, milk processing & wine making.

Kitchen benches, sinks, troughs, equipment and appliances

Architectural panelling, railings & trim

Chemical containers, including for transport

Heat Exchangers

Woven or welded screens for mining, quarrying & water filtration

Threaded fasteners

Springs

Others

 Other Features:

1) Chemical and Physical characteristic: durable, corrosion resistant and high-temperature resistant

2) We also produce pipes with special specifications according to customers’ requirements;

TP904L SMLS pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow — liquids and gases (fluids), slurries, powders and masses of small solids. It can also be used for structural applications; hollow pipe is far stiffer per unit weight than solid members.

TP904L SMLS pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. Historically seamless pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.

TP904L SMLS pipe's Marking & Packaging

While marking we choose a specific item number as well different color shade to differentiate steel grades. We mark TP904L SMLS pipe as needed with the most suitable & visible marking technique.

Packaging is an integral part of the product. It guarantees that the TP904L SMLS pipe is delivered to the customer in the required quality. For smaller orders the size of the TP904L SMLS pipe bundle depends on the no. of Tubes ordered, for larger orders the tubes are packed into individual bundles and in such a way that the maximum weight of 4000kg per bundle is not excedded. Bundle tied down with steel tape. Bundle tied down by steel strap underlaid by tapaten.

We can also provide TP904L SMLS pipe wooden box packing, cardboard boxes, plastic wrapping, using hardened paper with PE meshing (used as protection against mechanical damages of tubes), into tapaten and polyethylene sheet etc.

Where can we find the high quality TP904L SMLS pipe.

You can visit this website: www.yaang.com (Yaang Pipe Industry Co., Limited).

If any inquiry, please feel free to contact by email sales@yaang.com

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[gicpipesandtubes-blog]

SS 321 UNS S32100 Tubes Manufacturer & Supplier

SS 321 UNS S32100 Tubes , supplier Ganpat Industrial Corporation is an ISO 9001:2015 Certified Company that deals in high-quality Stainless Steel Pipes, Tubes and fittings. GIC is a leading manufacturer, supplier & exporter of various metal based raw material like ferrous and non-ferrous metal products like welded pipe, welded tubes, seamless pipes, seamless tubes, bar, sheets, plates, coils, wire mesh, flange, bolts, nut in stainless steel and high nickel alloys such as inconel, monel, nickel, hastelloy, duplex steel, titanium among other exotic grades. SS 321 UNS S32100 Tubes Bright annealed tube, SS 310 seamless tubes, SS 310 welded tubing, SS 310 polish tube, SS TP310 seamless tubing, TP310 SS welded tubes manufacturing in India We provide High & Supreme quality industrial pipe fittings, tube fittings, and flanges. Our manufactured Steel Tubes are used in a wide range of industries and applications like electric power, petrochemical, chemical, pharmaceutical, boiler, heating, shipbuilding, etc. The company has marked its specialization as a quality conscious organization. To ensure that the best products are sent in the markets, we stringently test the products we offer on certain parameters such as finish, performance, durability etc. Ganpat Industrial Corporation also deals in SS 304 Tubes, SS 304L Tubes, SS 304H Tubes, SS 310 Tubes, SS 310S Tubes, SS 317LH Tubes, SS 316 Tubes, SS 316L Tubes, SS 316Ti Tubes, SS 317 Tubes, SS 317L Tubes, SS 347 Tubes, SS 347H Tubes, SS 410 Tubes, SS 446 Tubes, SS 904L Tubes. We keep huge stock of SS 321 UNS S32100 Tubes Tubes in Indian, Japanese, European and USA origin. For Business Queries email us at sales@ganpatind.com. Kindly visit our Website for more information at http://www.pipes-tubes.com/

[metinox]

Maximizing Corrosion Resistance with ASTM A213 Stainless Steel 317/317L Heat Exchanger Tubes

Introduction :

Metinox Overseas is one of the leading manufacturers, suppliers, stockists, and exporters of Stainless Steel 317/317L Heat Exchanger Tubes, offering a qualitative range designed in adherence to both national and international standards. Our commitment lies in providing top-notch products crafted from superior quality raw materials, ensuring resistance to corrosion and an extended service life.

Product Overview :

Our Stainless Steel 317L Heat Exchanger Tubes find frequent applications in various industries, notably in the cooling systems of hydraulic fluid and oil within engines, transmissions, and hydraulic power packs. Metinox Overseas prioritizes the utilization of high-grade raw materials to ensure optimal performance and longevity of SS 317L Seamless Heat Exchanger Tubes.

317/317L Stainless Steel Heat Exchanger Tubes Standard Specifications :

Specifications:ASTM A249 / ASME SA 249

Size Range:10 mm OD to 50.8 mm OD

Outer Diameter:6.00 mm to 101.60 mm

Wall Thickness:0.70 mm to 8.00 mm

Length:up to 20 m (65.62 ft) Length & Customed Required Length

Form:Seamless, Welded, Round, U Bent Tube, Shell and Tube

Ends:Plain End, Beveled End, Treaded

Processing Service:Bending, Welding, Decoiling, Punching, Cutting, Moulding

Technique:Cold drawn, Cold rolled, Hot rolled, Extrusion Tube manufacturer in India

Applications Of Stainless Steel 317/317L Heat Exchanger Tubes:

1. Chemical and Petrochemical Industries:

o Used in processing units, especially where acids like sulfuric acid or hydrochloric acid are present.

o Ideal for heat exchangers and condensers exposed to aggressive chemicals.

2. Power Plants:

o Found in boiler tubes, superheaters, and reheaters due to their ability to withstand high pressure and temperature.

3. Pharmaceutical Industry:

o Used in systems requiring hygienic and corrosion-resistant tubes, such as clean steam production.

4. Food Processing Equipment:

o Suitable for heat exchangers in food-grade environments due to their non-reactive surface and corrosion resistance.

5. Marine Applications:

o Used in heat exchangers exposed to seawater due to their excellent resistance to pitting and crevice corrosion.

6. Pulp and Paper Industry:

o Effective in equipment exposed to bleaching agents and acidic conditions.

Conclusion:

Stainless Steel 317/317L Heat Exchanger Tubes are highly valued for their exceptional corrosion resistance, durability, and ability to handle extreme conditions.

[metinoxoverseas123]

Stainless Steel 317/317L Boiler Tubes Manufacturers In Mumbai

Introduction: Mumbai, the bustling metropolis on the western coast of India, is not just the financial capital but also a hub of industrial excellence. Among the many industries thriving in this vibrant city, the manufacturing of Stainless Steel 317/317L Boiler Tubes stands out as a testament to Mumbai's engineering prowess.Stainless Steel 317/317L stands out for its exceptional properties, particularly in the realm of boiler tubes. Metinoxoverseas, a leading supplier in India, Stainless Steel 317/317L Boiler Tubes. SS 317 Boiler Tubes (also known as UNS S31700 and WNR 1.4449) find typical applications in various industries, including boat fittings, structural members, architectural components in marine, polluted or industrial environments, food and beverage processing equipment, hot water systems, and plants for chemical, petrochemical, mineral processing, photographic, and other industries.

Description : Stainless Steel 317/317L Boiler Tubes manufactured in Mumbai embody the city's commitment to precision engineering and quality craftsmanship. These tubes are forged from premium-grade stainless steel alloys, meticulously selected for their superior corrosion resistance and high-temperature strength. The addition of molybdenum enhances the alloy's resistance to pitting and crevice corrosion, making it an ideal choice for boiler applications in industries such as chemical processing, petrochemicals, and power generation.

Product Overview: Metinoxoverseas offers an extensive range of Stainless Steel 317/317L boiler tubes meticulously designed to meet the stringent requirements of boiler applications. With a commitment to quality and customer satisfaction, Metinoxoverseas ensures that each tube undergoes thorough quality checks to guarantee superior performance and reliability. Their tubes are trusted by industries worldwide for their durability, corrosion resistance, and impeccable quality.

Stainless Steel 317/317L Boiler Tubing Specification : Specifications : ASTM A / ASME SA213 A312 Range : 6.35 mm OD upto 152.4 mm OD in 0.6 TO 10 mm thickness. Form : Round, Square, Rectangular, Coil, U Tube, Pan Cake. Wall Thickness : 0.50 mm TO 6.0 mm End : Plain End, Bevelled End Length : Single Random, Double Random & Required Length Types : Seamless / ERW / Welded

Conclusion: Stainless Steel 317/317L boiler tubes from Metinoxoverseas are the epitome of durability, performance, and reliability in demanding boiler applications. With their exceptional corrosion resistance, high temperature strength, and versatility, these tubes provide an ideal solution for various industrial sectors.

Contact : Metinoxoverseas today via email at sales@metinoxpiping.com () or by phone at +91-98199 80997 / +91-70212 61928 to experience unparalleled quality and service in stainless steel boiler tubes.

[gicpipesandtubes-blog]

SS 347H Tubes Manufacturer & Supplier

#manufacturerSS 347H Tubes , supplier Ganpat Industrial Corporation is an ISO 9001:2015 Certified Company that deals in high-quality Stainless Steel Pipes, Tubes and fittings. GIC is a leading manufacturer, supplier & exporter of various metal based raw material like ferrous and non-ferrous metal products like welded pipe, welded tubes, seamless pipes, seamless tubes, bar, sheets, plates, coils, wire mesh, flange, bolts, nut in stainless steel and high nickel alloys such as inconel, monel, nickel, hastelloy, duplex steel, titanium among other exotic grades. SS 347H Tubes Bright annealed tube, SS 310 seamless tubes, SS 310 welded tubing, SS 310 polish tube, SS TP310 seamless tubing, TP310 SS welded tubes manufacturing in India We provide High & Supreme quality industrial pipe fittings, tube fittings, and flanges. Our manufactured Steel Tubes are used in a wide range of industries and applications like electric power, petrochemical, chemical, pharmaceutical, boiler, heating, shipbuilding, etc. The company has marked its specialization as a quality conscious organization. To ensure that the best products are sent in the markets, we stringently test the products we offer on certain parameters such as finish, performance, durability etc. Ganpat Industrial Corporation also deals in SS 304 Tubes, SS 304L Tubes, SS 304H Tubes, SS 310 Tubes, SS 310S Tubes, SS 317LH Tubes, SS 316 Tubes, SS 316L Tubes, SS 316Ti Tubes, SS 317 Tubes, SS 317L Tubes, SS 347 Tubes, SS 347H Tubes, SS 410 Tubes, SS 446 Tubes, SS 904L Tubes. We keep huge stock of SS 347H Tubes Tubes in Indian, Japanese, European and USA origin. For Business Queries email us at sales@ganpatind.com. Kindly visit our Website for more information at http://www.pipes-tubes.com/

[gicpipesandtubes-blog]

SS 317 Tubes Manufacturer & Supplier

SS 317 Tubes , supplier Ganpat Industrial Corporation is an ISO 9001:2015 Certified Company that deals in high-quality Stainless Steel Pipes, Tubes and fittings. GIC is a leading manufacturer, supplier & exporter of various metal based raw material like ferrous and non-ferrous metal products like welded pipe, welded tubes, seamless pipes, seamless tubes, bar, sheets, plates, coils, wire mesh, flange, bolts, nut in stainless steel and high nickel alloys such as inconel, monel, nickel, hastelloy, duplex steel, titanium among other exotic grades. SS 317 Tubes Bright annealed tube, SS 310 seamless tubes, SS 310 welded tubing, SS 310 polish tube, SS TP310 seamless tubing, TP310 SS welded tubes manufacturing in India We provide High & Supreme quality industrial pipe fittings, tube fittings, and flanges. Our manufactured Steel Tubes are used in a wide range of industries and applications like electric power, petrochemical, chemical, pharmaceutical, boiler, heating, shipbuilding, etc. The company has marked its specialization as a quality conscious organization. To ensure that the best products are sent in the markets, we stringently test the products we offer on certain parameters such as finish, performance, durability etc. Ganpat Industrial Corporation also deals in SS 304 Tubes, SS 304L Tubes, SS 304H Tubes, SS 310 Tubes, SS 310S Tubes, SS 317LH Tubes, SS 316 Tubes, SS 316L Tubes, SS 316Ti Tubes, SS 317 Tubes, SS 317L Tubes, SS 347 Tubes, SS 347H Tubes, SS 410 Tubes, SS 446 Tubes, SS 904L Tubes. We keep huge stock of SS 317 Tubes Tubes in Indian, Japanese, European and USA origin. For Business Queries email us at sales@ganpatind.com. Kindly visit our Website for more information at http://www.pipes-tubes.com/

[gicpipesandtubes-blog]

ASTM A/SA213 269 TP 310/310S Tubes Manufacturer & Supplier

ASTM A/SA213 269 TP 310/310S Tubes , supplier Ganpat Industrial Corporation is an ISO 9001:2015 Certified Company that deals in high-quality Stainless Steel Pipes, Tubes and fittings. GIC is a leading manufacturer, supplier & exporter of various metal based raw material like ferrous and non-ferrous metal products like welded pipe, welded tubes, seamless pipes, seamless tubes, bar, sheets, plates, coils, wire mesh, flange, bolts, nut in stainless steel and high nickel alloys such as inconel, monel, nickel, hastelloy, duplex steel, titanium among other exotic grades. ASTM A/SA213 269 TP 310/310S Tubes Bright annealed tube, SS 310 seamless tubes, SS 310 welded tubing, SS 310 polish tube, SS TP310 seamless tubing, TP310 SS welded tubes manufacturing in India We provide High & Supreme quality industrial pipe fittings, tube fittings, and flanges. Our manufactured Steel Tubes are used in a wide range of industries and applications like electric power, petrochemical, chemical, pharmaceutical, boiler, heating, shipbuilding, etc. The company has marked its specialization as a quality conscious organization. To ensure that the best products are sent in the markets, we stringently test the products we offer on certain parameters such as finish, performance, durability etc. Ganpat Industrial Corporation also deals in Stainless Steel 304 Tubes, Stainless Steel 304L Tubes, Stainless Steel 304H Tubes, Stainless Steel 310 Tubes, Stainless Steel 310S Tubes, Stainless Steel 317LH Tubes, Stainless Steel 316 Tubes, Stainless Steel 316L Tubes, Stainless Steel 316Ti Tubes, Stainless Steel 317 Tubes, Stainless Steel 317L Tubes, Stainless Steel 347 Tubes, Stainless Steel 347H Tubes, Stainless Steel 410 Tubes, Stainless Steel 446 Tubes, Stainless Steel 904L Tubes. We keep huge stock of ASTM A/SA213 269 TP 310/310S Tubes Tubes in Indian, Japanese, European and USA origin. For Business Queries email us at sales@ganpatind.com. Kindly visit our Website for more information at http://www.pipes-tubes.com/

[gicpipesandtubes-blog]

ASTM A213 / 269 TP 347 / 347H Tubes Manufacturer & Supplier

ASTM A213 / 269 TP 347 / 347H Tubes , supplier Ganpat Industrial Corporation is an ISO 9001:2015 Certified Company that deals in high-quality Stainless Steel Pipes, Tubes and fittings. GIC is a leading manufacturer, supplier & exporter of various metal based raw material like ferrous and non-ferrous metal products like welded pipe, welded tubes, seamless pipes, seamless tubes, bar, sheets, plates, coils, wire mesh, flange, bolts, nut in stainless steel and high nickel alloys such as inconel, monel, nickel, hastelloy, duplex steel, titanium among other exotic grades. ASTM A213 / 269 TP 347 / 347H Tubes Bright annealed tube, SS 310 seamless tubes, SS 310 welded tubing, SS 310 polish tube, SS TP310 seamless tubing, TP310 SS welded tubes manufacturing in India We provide High & Supreme quality industrial pipe fittings, tube fittings, and flanges. Our manufactured Steel Tubes are used in a wide range of industries and applications like electric power, petrochemical, chemical, pharmaceutical, boiler, heating, shipbuilding, etc. The company has marked its specialization as a quality conscious organization. To ensure that the best products are sent in the markets, we stringently test the products we offer on certain parameters such as finish, performance, durability etc. Ganpat Industrial Corporation also deals in Stainless Steel 304 Tubes, Stainless Steel 304L Tubes, Stainless Steel 304H Tubes, Stainless Steel 310 Tubes, Stainless Steel 310S Tubes, Stainless Steel 317LH Tubes, Stainless Steel 316 Tubes, Stainless Steel 316L Tubes, Stainless Steel 316Ti Tubes, Stainless Steel 317 Tubes, Stainless Steel 317L Tubes, Stainless Steel 347 Tubes, Stainless Steel 347H Tubes, Stainless Steel 410 Tubes, Stainless Steel 446 Tubes, Stainless Steel 904L Tubes. We keep huge stock of ASTM A213 / 269 TP 347 / 347H Tubes Tubes in Indian, Japanese, European and USA origin. For Business Queries email us at sales@ganpatind.com. Kindly visit our Website for more information at http://www.pipes-tubes.com/

[gicpipesandtubes-blog]

Stainless Steel 321H Tubes USN S32109 Manufacturer & Supplier

Stainless Steel 321H Tubes USN S32109 , supplier Ganpat Industrial Corporation is an ISO 9001:2015 Certified Company that deals in high-quality Stainless Steel Pipes, Tubes and fittings. GIC is a leading manufacturer, supplier & exporter of various metal based raw material like ferrous and non-ferrous metal products like welded pipe, welded tubes, seamless pipes, seamless tubes, bar, sheets, plates, coils, wire mesh, flange, bolts, nut in stainless steel and high nickel alloys such as inconel, monel, nickel, hastelloy, duplex steel, titanium among other exotic grades. Stainless Steel 321H Tubes USN S32109 Bright annealed tube, SS 310 seamless tubes, SS 310 welded tubing, SS 310 polish tube, SS TP310 seamless tubing, TP310 SS welded tubes manufacturing in India We provide High & Supreme quality industrial pipe fittings, tube fittings, and flanges. Our manufactured Steel Tubes are used in a wide range of industries and applications like electric power, petrochemical, chemical, pharmaceutical, boiler, heating, shipbuilding, etc. The company has marked its specialization as a quality conscious organization. To ensure that the best products are sent in the markets, we stringently test the products we offer on certain parameters such as finish, performance, durability etc. Ganpat Industrial Corporation also deals in Stainless Steel 304 Tubes, Stainless Steel 304L Tubes, Stainless Steel 304H Tubes, Stainless Steel 310 Tubes, Stainless Steel 310S Tubes, Stainless Steel 317LH Tubes, Stainless Steel 316 Tubes, Stainless Steel 316L Tubes, Stainless Steel 316Ti Tubes, Stainless Steel 317 Tubes, Stainless Steel 317L Tubes, Stainless Steel 347 Tubes, Stainless Steel 347H Tubes, Stainless Steel 410 Tubes, Stainless Steel 446 Tubes, Stainless Steel 904L Tubes. We keep huge stock of Stainless Steel 321H Tubes USN S32109 Tubes in Indian, Japanese, European and USA origin. For Business Queries email us at sales@ganpatind.com. Kindly visit our Website for more information at http://www.pipes-tubes.com/

[gicpipesandtubes-blog]

Stainless Steel 321 Tubes USN S32100 Manufacturer & Supplier

Stainless Steel 321 Tubes USN S32100 , supplier Ganpat Industrial Corporation is an ISO 9001:2015 Certified Company that deals in high-quality Stainless Steel Pipes, Tubes and fittings. GIC is a leading manufacturer, supplier & exporter of various metal based raw material like ferrous and non-ferrous metal products like welded pipe, welded tubes, seamless pipes, seamless tubes, bar, sheets, plates, coils, wire mesh, flange, bolts, nut in stainless steel and high nickel alloys such as inconel, monel, nickel, hastelloy, duplex steel, titanium among other exotic grades. Stainless Steel 321 Tubes USN S32100 Bright annealed tube, SS 310 seamless tubes, SS 310 welded tubing, SS 310 polish tube, SS TP310 seamless tubing, TP310 SS welded tubes manufacturing in India We provide High & Supreme quality industrial pipe fittings, tube fittings, and flanges. Our manufactured Steel Tubes are used in a wide range of industries and applications like electric power, petrochemical, chemical, pharmaceutical, boiler, heating, shipbuilding, etc. The company has marked its specialization as a quality conscious organization. To ensure that the best products are sent in the markets, we stringently test the products we offer on certain parameters such as finish, performance, durability etc. Ganpat Industrial Corporation also deals in Stainless Steel 304 Tubes, Stainless Steel 304L Tubes, Stainless Steel 304H Tubes, Stainless Steel 310 Tubes, Stainless Steel 310S Tubes, Stainless Steel 317LH Tubes, Stainless Steel 316 Tubes, Stainless Steel 316L Tubes, Stainless Steel 316Ti Tubes, Stainless Steel 317 Tubes, Stainless Steel 317L Tubes, Stainless Steel 347 Tubes, Stainless Steel 347H Tubes, Stainless Steel 410 Tubes, Stainless Steel 446 Tubes, Stainless Steel 904L Tubes. We keep huge stock of Stainless Steel 321 Tubes USN S32100 Tubes in Indian, Japanese, European and USA origin. For Business Queries email us at sales@ganpatind.com. Kindly visit our Website for more information at http://www.pipes-tubes.com/