#S31803 Duplex Steel Nuts

[chhajedfasteners1]

[chhajedfastners]

[ananka-fasteners]

Duplex Fasteners: Your Comprehensive Guide to Strength and Corrosion Resistance

Introduction

Ananka Group stands as an industry leader in the manufacture of Duplex Fasteners, offering a variety of size, grade, and spec high-quality Duplex fasteners. A manufacturer, stockist, supplier, and exporter, Ananka Group is focused on quality fasteners for demanding international industries from oil and gas to marine and construction applications. Duplex Fasteners are designed to withstand extreme strength and corrosion resistance conditions so that they can be used for demanding applications. We guarantee quality and strength throughout the range be it custom dimensions or specific grades, we get them to meet your particular needs in a project.

Duplex Fasteners are high-performance pieces made from duplex stainless steel, known for impressive strength and corrosion resistance. This structure of duplex stainless steel unites austenitic and ferritic structures with good mechanical properties and offers extreme durability even in very severe environment. Therefore, the applications where such conditions exist make Duplex Fasteners a favorite selection for oil and gas industry, chemical processing industries, marine applications, etc.

Duplex fasteners offer a much higher resistance to pitting and stress corrosion cracking as well as crevice corrosion, especially in chloride-rich environments, when compared with regular stainless steel fasteners. Their high strength-to-weight ratio also makes them quite popular for applications that involve high demand where weight saving and reliability are the word of the day.

More About Duplex Fasteners

Due to their unique properties, duplex fasteners are widely applied in a number of different industries. 

Here are a few key benefits that make them standout:

Resistance to Corrosion: High Chromium, Molybdenum, and Nitrogen make Duplex Stainless Steel resistant to pitting and crevice corrosion, especially in saline or acidic environments.

Strength: Duplex Fasteners have a higher strength than standard austenitic stainless steels such as 304 and 316. They are twice as strong as these grades and thus suitable for heavy-duty applications.

Temperature Resistance: The fasteners work efficiently at both low and high temperatures but perform more efficiently in moderately tempered temperature situations. They can tolerate the mechanical properties over a range of temperature without deformation.

Fatigue Resistance: The Duplex Fasteners' high strength along with ductility allows them to resist high-cycles stress, which enhances their fatigue resistance.

Cost-Effectiveness: Although the Duplex Fasteners will be more expensive when purchased, the long lifetime and the minimal maintenance means that they are the long-term cost-effective.

Specification of Duplex Fastener

The Duplex Fastener includes bolts, nuts, washers, screws, studs, etc. There are specifications of Duplex Fasteners based on their application, size, and design.

Following are some of the normal specifications:

Standard Grades :

Duplex 2205 (UNS S31803/S32205): Known for excellent corrosion resistance and strength.

Super Duplex 2507 (UNS S32750/S32760): Applied for a more extreme environment with higher resistance and strength

Diameter: M3 to M100 is available, but it is applied according to the usage.

Length: It depends on the application and type up to some meters in the case of threaded rods and studs.

Mechanical Properties

Yield strength is approximately 450-550 MPa in standard duplex, while for super duplex, it's 620 MPa and above.

Tensile Strength: 620–795 MPa.

Hardness: Duplex 2205 typically around 293 HB (Brinell Hardness) and up to 310 HB for Super Duplex.

Standards: Duplex Fasteners are usually manufactured under international standards such as ASTM, ASME, DIN, and EN to ensure the quality, reliability, and compatibility with other industrial parts.

Chemical Composition of Duplex Fasteners

The chemical composition is the main performance character for Duplex Fasteners and that includes strength, in addition to corrosion resistance. Here are two of the common duplex stainless alloys, whose composition is used for the fasteners, as presented below:

1. DUPLEX 2205/UNS S31803 / S32205

CR 21–23%,

NI 4.5–6.5%

MO 2.5–3.5%

N 0.08–0.20%

FE Rest

2. SUPER DUPLEX 2507/UNS S32750 / S32760

CR 24-26%

NI 6-8%

MO 3-5%

N 0.24-0.32%

FE Rest

High chromium and molybdenum content along with nitrogen makes these alloys resistant to localized corrosion such as pitting and crevice corrosion. This is very essential in offshore and other aggressive environments.

Applications of Duplex Fasteners

Duplex Fasteners are used in all applications where strength combined with corrosion resistance is a prerequisite. 

A few of the common industries and applications include:

Oil and Gas: Exploration, drilling, and refinery operations.

Chemical Processing: Equipment handling corrosive chemicals.

Marine Industry: Shipbuilding, docks, and underwater applications.

Construction: Structures exposed to harsh environments.

Water Treatment: Desalination plants, sewage systems, and chemical tanks.

Conclusion

Duplex Fasteners have found their place in industries demanding strength, durability, and corrosion resistance. Their exclusive properties make them suitable for harsh environments where both strength and resistance to multiple types of corrosion are equally balanced. Though the upfront cost is higher, the long-term savings are in the form of extended service life and minimal maintenance of Duplex Fasteners.

FAQs

1. What are Duplex Fasteners?

Duplex Fasteners are components made from duplex stainless steel, known for high strength, corrosion resistance, and fatigue resistance, making them suitable for demanding applications.

2. What is the difference between Duplex and Super Duplex Fasteners?

Super Duplex Fasteners contain more chromium, nickel, and molybdenum than the standard duplex, providing greater corrosion resistance and strength.

3. Can Duplex Fasteners be used in high-temperature applications?

Yes, Duplex Fasteners can be used in all temperature applications, though they work efficiently within moderate temperatures. Severe high temperatures will affect the mechanical properties.

4. Which sectors usually utilize Duplex Fasteners?

The oil and gas, chemical processing, marine, construction, and water treatment industries are most often utilizing Duplex Fasteners because they are more durable and do not degrade quickly in rough conditions.

5. Is it cost-effective to use Duplex Fasteners?

Though the initial cost is pricey, Duplex Fasteners are long term because of their durability and low maintenance, not prone to corrosion.

[nascentgroup]

Introduction:

Within India's dynamic industrial sphere, characterized by sectors such as oil and gas, chemical processing, and marine engineering, the quest for reliable fastening solutions remains constant. Among the materials esteemed for their exceptional performance stands Duplex stainless steel grade UNS S31803. Recognized for its remarkable corrosion resistance, mechanical resilience, and adaptability to challenging environments, UNS S31803 plays a crucial role in various industrial applications.

Benefits of Duplex UNS S31803 Bolts/Nuts:

Superior Corrosion Resistance: Duplex UNS S31803 bolts and nuts exhibit outstanding resistance to corrosion, particularly in aggressive environments such as those found in marine and chemical processing industries. This resistance ensures longevity and reliability, even in demanding conditions.

High Mechanical Strength: With its duplex structure, UNS S31803 offers excellent mechanical properties, including high tensile strength and toughness. This makes it ideal for applications requiring robust fastening solutions that can withstand heavy loads and mechanical stresses.

Versatility: Duplex UNS S31803 bolts and nuts are highly versatile, suitable for a wide range of industrial applications. From offshore platforms to chemical reactors, their adaptability ensures they can meet the diverse needs of various sectors.

Cost-Effectiveness: Despite its superior properties, Duplex UNS S31803 remains cost-effective compared to some other corrosion-resistant alloys. This makes it an attractive choice for industries seeking high performance without compromising on budgetary constraints.

Duplex UNS S31803 Bolt/Nut Specifications

SpecificationsASTM A 479 ASME SA 479

StandardDIN, ASTM, BS and all International Standards

Length3 mm to 200 mm

SizeM3 – M56 | 3/6″ to 2″ | Custom Sizes

TypeHex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts.

Countries Importing Duplex UNS S31803 Bolts/Nuts:

While India boasts a robust industrial sector, it also engages in global trade to meet specific requirements and access specialized materials. Countries such as the United States, Germany, China, and the United Kingdom are notable importers of Duplex UNS S31803 bolts and nuts. These countries recognize the superior quality and performance of Duplex stainless steel and rely on imports to supplement their industrial needs and ensure the smooth operation of critical infrastructure and equipment.

For more details

Email: info@nascentgroup.in

Contact: 8779038854

If any enquiries please contact us our support team will connect you as soon as possible.

[bullionpipestainlesssteel]

What industries use fasteners?

Fasteners play a critical role in construction, manufacturing, and engineering. As a leading force in the industry, Bullion Pipes & Tubes LLP stands out as the premier fasteners manufacturer, supplier, stockist, and exporter worldwide. With an extensive range that includes Bolts, Nuts, Screws, Washers, Studs, Rivets, Self-Clinching Fasteners, and more, our commitment is to provide top-notch solutions that cater to diverse project requirements.

This blog post aims to shed light on the diverse industries that heavily rely on fasteners, emphasizing the broad spectrum of applications our products cater to.

Types of Fasteners We Offer 

With us, we offer fasteners with a variety of Types and Features, including the following;

Bolts: These threaded fasteners require corresponding nuts for secure connections. Choose from an array of head styles, including hex head, socket head, and round head.

Nuts: Complementing bolts, nuts secure connections. Opt for hex nuts, lock nuts, or wing nuts based on specific application requirements.

Screws: Known for versatility, screws find use in diverse applications. Choose from different head styles like Phillips, flat, or hex, and opt for self-tapping or machine screws.

Washers: Flat and disk-shaped, washers play a pivotal role in distributing fastener loads and protecting surfaces. Types include flat, lock, and spring washers.

Studs: Characterized by threaded rods without heads on one end, studs are ideal for dual-threaded connections and situations where nuts are impractical.

Rivets: Permanent fasteners with a cylindrical shaft and deformed head create a secure connection.

Pins: Cylindrical fasteners for alignment, securing, or support, including types like dowel, cotter, and clevis pins.

Anchors: These fasteners affix objects to hard surfaces, such as concrete. Common types involve wedge, sleeve, and drop-in anchors.

Clips and Clamps: Secure items like hoses and cables using clips and clamps, such as hose clamps, spring clips, and wire rope clamps.

Threaded Rods: Lengthy straight rods with continuous threading, frequently used for hanging and providing support.

U-Bolts: Featuring a U-shaped design with threads on both ends, they secure round objects to surfaces.

Eye Bolts: Equipped with a loop or "eye," these bolts are designed for lifting and securing heavy loads.

Stud Bolts: Threaded at both ends with an unthreaded portion in the middle, commonly used in flange connections.

Self-Clinching Fasteners: Specifically designed for sheet metal and thin materials, including self-clinching nuts, studs, and standoffs.

Hinges and Latches: Serving as fasteners for attaching doors, gates, and panels, they include hinges, hasps, and latches.

Materials Wise Grade We Offer – Fasteners

At, Bullion Pipes & Tubes LLP, provides a wide variety of fasteners, including;

Copper – CDA 102, CDA 101, CDA 110

Titanium – Titanium Alloy Gr 2 & Titanium Alloy Gr 5 

Monel – Monel K500 & Monel 400 

Carbon Steel – ASTM A193/194 & ASME SA193/194 Carbon Steel 

Brass – Alloy 260, Alloy C48200 – C48500, Alloy 385, Alloy 360, Alloy 353, Alloy 330, Alloy 272, Alloy 464

Tantalum – RO5200， RO5400， RO5252(Ta2.5W)， RO5255(Ta10W)

Inconel – Inconel 718, Inconel 600, Inconel 601, Inconel 625 

Aluminum – he 20 65032 6061, he 30 64430, ASTM 6061, 6063, 6351

Nickel – Nickel Alloy 200/201 

SMO 254 – ASTM A 479 ASME SA 479

Duplex Steel – Duplex Steel UNS S32205, Duplex Steel UNS S31803 

Hastelloy – Hastelloy C22 & Hastelloy B2, Hastelloy C276 

Super Duplex Steel – Super Duplex Steel UNS S32750, Super Duplex Steel UNS S32760 

Incoloy – Incoloy 800/800H/800HT, Incoloy 825 

Alloy 20 – DIN 2.4460 Alloy Hexagonal Nut, Alloy 20 Bolts, UNS N08020 Alloy 20 Screws, Alloy 20 Washers

Industries Uses Fasteners

Here are some industries where fasteners are used extensively:

Construction: Fasteners such as bolts, nuts, screws, and anchors are widely used in the construction industry for connecting structural elements like beams, columns, and panels.

Automotive: The automotive industry relies heavily on fasteners for assembling vehicles. A variety of screws, bolts, nuts, and clips are used in the manufacturing of cars, trucks, motorcycles, and other vehicles.

Aerospace: Aerospace applications require precision and reliability. Fasteners play a critical role in assembling aircraft and spacecraft components, ensuring safety and structural integrity.

Manufacturing: In general manufacturing processes, fasteners are used to assemble a wide range of products across different industries, including appliances, electronics, and consumer goods.

Energy: Fasteners are used in the energy sector for assembling components in power plants, wind turbines, solar panels, and other energy infrastructure.

Shipbuilding: The shipbuilding industry relies on fasteners for assembling the various components of ships, including the hull, decks, and internal structures.

Railway: They are crucial in the railway industry for connecting rail tracks, assembling train components, and maintaining the structural integrity of railway infrastructure.

Oil and Gas: In the oil and gas industry, fasteners are used in the construction and maintenance of pipelines, platforms, and other infrastructure.

Electronics: Fasteners play a role in the assembly of electronic devices and equipment. They are used to secure components on circuit boards and in the housing of electronic products.

Medical Devices: Fasteners are used to ensure that components are held together in a precise manner in medical devices and equipment.

Furniture: In the furniture industry, fasteners such as screws, bolts, and nuts are used to assemble various types of furniture, from simple household items to complex office furniture.

Final Words! As a global Fasteners Supplier, Manufacturer Stockist, and Exporter, Bullion Pipes & Tubes LLP takes pride in contributing to the success of diverse industries. Our fasteners, available in an array of sizes, specifications, standards, grades, materials, and types, offer versatility and reliability. Whether it's bolts, nuts, screws, washers, studs, rivets, or self-clinching fasteners, our commitment to quality ensures that our customers can confidently choose the perfect solution for their project requirements. Contact us today at info@bullionpipe.com or sales@bullionpipe.com to explore how our fasteners can enhance the strength and durability of your applications.

[sankalpalloys]

Duplex Steel S31803 Fasteners Manufacturers in India

Sankalp Alloys Overseas is an overall maker of the wide degrees of Duplex Steel Fasteners. We are giving and trading the best thought of the locks over the clients accessible from one side of the world to the other. The locks are given to the clients in various particulars, for example, surface realization, end finish, points, shapes, sizes, length, and strength. The snares are in addition open in the cut made nuances of the clients.

In the associations, there are several stuff contraptions that are utilized in the applications. Among them the most immense and most regularly utilized gear contraption is secure. Affix are the most reliably utilized gadgets that are utilized to relate two directing parts together. The catch are unguarded with various sorts to be utilized in the undertakings. Kinds of catch that are utilized in the high level applications are fasten and screws, nuts, washers, clasp, critical anchors, inserts, hung post, and holding rings.

Alongside this, the locks are in addition accessible with various sorts, for example, carriage screws, hex head catch, machine screws, shoulder screws, and others. screws are correspondingly accessible with various sorts like the wooden idea of the screws, sheet metal screws, and machine screws. This is the explanation that the high level applications are working flawlessly with the assistance of the locks produced using the duplex steel grade compound.

Duplex steel is the ferrous, nickel, and chromium-based composite which is going under the austenitic microstructure there with room temperature. The composite utilized all over powers the blend of the austenitic grade of compound with the ferrite stages. Duplex steel is having high strength with better weldability quality. This is the way that the mix steel is utilized in the strain vessels which are open in the undertakings.

Duplex Steel Fasteners is made with the austenitic grade of blend duplex steel. This is the explanation that blend steel get are having different properties. A piece of the properties which are there with the locks are breaking down block, pitting use obstruction considering the carbon contents present as the alloying part. In like manner, the locks are utilized in raised temperature applications due to wonderful adaptability, high durability, and vigor in the raised temperatures, stunning solidness, and high strength.

[pipingmaterial]

Everything you need to know about various types of Steel Flanges and their specifications for use.

The piping structure comprises various components that help to make their functioning smoother and more accessible. The pipes' mechanism works appropriately because many other devices and parts are attached to it that require work in coordination for the overall working of the piping structure. Flanges are one such component that exhibits excellent value to the piping structure. Flange is the component used for either attaching or removing two pipes together. Flanges create a space that is required between the two pipes so that they can be cleaned at regular intervals. Flanges are also essential for smooth transitions between two types of uneven lines. In this blog, we will learn about different types of Flanges-

1) Mild Steel Flanges Suppliers-

Mild Steel Flanges have significantly less carbon composition when compared to other Flanges. The mild steel flanges have a presence between 0.05 to 0.25% carbon composition. Mild Steel Flanges have been mainly and extensively used for the electric and automobiles industry in great numbers. Mild Steel Flanges suppliers specify the carbon contents to their customers and provide them with the best after-sales services.

2) Duplex Bolts and Flanges-

Duplex Bolts are not precisely like flanges but are the same as them in a smaller format. Duplex bolts are like nuts which are very small in size and are used for connecting all the components.

3) Hastelloy Flanges-

Hastelloy Flanges are circular in shape and have an elliptical opening from the middle, and the rest of the area is a flat surface. Hastelloy Flanges have good heat resistance and can sustain a high temperature, making them ideal for high-tensile work. Hastelloy Flanges also have excellent durability, making them one of the popular choices for flanges.

4) Stainless Steel 321 Flanges-

Stainless steel flanges have an alloy composition of chromium and nickel in them. They have excellent properties that make them strong against the corrosion that might occur due to weather changes. Stainless steel 321 Flanges are resistant to some other substances like chemical and organic chemicals that have been used extensively for many purposes. If there is a need to harden the stainless steel flanges, then it can only be done through cold working, and nothing related to heat will be impacted for the same. Uns s31803  is used for sterilizing the alloys and compositions for some flanges.

5) Stainless Steel 347 Flanges-

Stainless Steel 347 Flanges are advanced versions of the 321 ones. They have the highest endurance to temperature rises and are a mixture of Columbium and tantalum alloys composition in them. Stainless Steel 316 Fasteners are also one of the small components for these Flanges and are used for piping structures.

Above mentioned are some of the Flanges that are available in the market by the respective suppliers. While deciding which the best for your business is, one should consider all the factors well. This article helps you in knowing about the flanges better.

[themetalsfactory]

The Metals Factory

The Metals Factory is an ISO certified and PED approved professional and international manufacturer, supplier and exporter of stainless steel, aluminium, nickel alloys, carbon steel and alloy steel products.  With a collective experience of over 30 years, we have emerged as one of the largest just in time exporter of steel and aluminum products. Our range of products includes steel plates, rods, bars, angle, channels, steel pipe and tube, forged flange and fittings, elbow, tee, reducer, stub end, gaskets, fasteners, valves etc. We are devoted to provide the best solutions for steel materials and industrial equipment for our respected customers. We have manufacturing set up, sales and export offices in both India and China to meet the immediate and long term steel and aluminium product requirements across the globe.

Our stainless steel pipe and carbon steel pipe products are designed and manufactured in compliance with international standards and are appreciated for their sturdiness, precise dimensions, durability, finish and corrosion resistance. They are available in distinguished sizes, dimensions and thicknesses to cover the requirements of various industries like power plants, automobile, heavy engineering, offshore and chemical.

In addition to being a manufacturer of seamless pipes and welded steel pipes, we are also one of the biggest stainless steel plate and aluminum plate processing center in India. We are a leading stockholder, processor and supplier of high quality stainless steel plates, stainless steel sheets, stainless steel coils, stainless steel strips, alloy steel plates, special alloy plates, mild steel plates, mild steel coils, hot rolled coils, hot rolled plates, cold rolled coils.

We supply not only commonly used carbon steel and stainless steel materials (SS304/L, SS316/L, SS321), but also duplex and super duplex steel 1.4547, 1.4462, 1.4410 (S31254, S31803, S32750, S32760), and special austenite stainless steel such as 310S, 347H, 317L, 904L.

Some of our important & key products include the following:        

1)     Aluminium sheets, plates and coils in size range of 0.2mm to 350mm in Alloys 1050, 1060, 1070, 1080, 1100, 1200, 3003, 3105 and 8011. We are also one of the leading suppliers of 5052, 5083, 5086, 6061, 6082 and 7075 plate, and sheet products. Other products available in Aluminium alloys include bar and rods, seamless tubes, buttweld fittings, flanges and aluminium blocks for CNC machining.

2)     Stainless steel sheets, plates and coils in size range of 0.2mm to 80mm in SS 304/L, SS316/L, SS321, duplex and super duplex steel, 310S, 347H, 317L, 904L. We offer stainless steel products in various forms including stainless steel pipes, stainless steel rods, stainless steel forgings, stainless steel large diameter pipes, stainless steel pipe fittings and flanges.

3)     Carbon steel plates are available for sale in size range of 6mm to 200mm in custom widths and lengths, especially boiler quality plates, pressure vessel steel plates, abrasion resistant steel plates, and high tensile plates.

4)     Stainless steel flexible hose pipes and bellows in sizes from 1/4” to 12” in custom lengths with various types of end connections such as flanges, female or male nuts, nipples, adaptors, camlock couplings, quick release couplings etc.

5)     Carbon steel seamless pipes available in size range of 1/2’’~24’’NB, carbon steel ERW pipes available in sizes 1/2’’~40’’NB, while LSAW and Spiral welded steel pipes are available in size range of 18’’~72’’NB

6)     Stainless steel pipes are available in various grades such as SS 304/L, SS316/L, SS321, duplex and super duplex steel, 310S, 347H, 317L, 904L, Stainless steel seamless pipes are available in size range of 1/2’’~24’’NB, while stainless steel ERW and Fabricated pipes are available in sizes 1/2’’~40’’NB.

Various piping system related pipes fittings, fasteners, gaskets and flanges are available in carbon steel, stainless steel, nickel alloys and alloy steel grades. We manufacture and supply buttweld pipe fittings, forged fittings and flanges in size ½” to 60”.

[micrometalsblog]

2205 Duplex Stainless Steel Bolts stock upto 3/6" to 2" or Custom Sizes, we are Duplex Fasteners manufacturer as per ASME SA479 /ASTM A479. Best online price of Alloy, Nut, Stud Bolt & Screw.

[chhajedfasteners1]

[mukeshmus]

Duplex Steel UNS S31803 Nuts Manufacturers

Chhajed Steel and Alloys is one of the known makers of ASTM A479 Duplex Steel UNS S31803 and UNS S32205 Nuts, which is the most by and large used duplex (ferritic/austenitic) treated steel survey. ASTM A479 Duplex Steel UNS S31803 Nuts has phenomenal general disintegration assurance in a wide grouping of dangerous synthetic compounds including seawater and present day acids. Microstructures of ASME SA 479 Duplex Steel UNS S32205 Hex Nuts involve a mix of austenite and ferrite stages. In this way, it show properties typical for both austenitic and ferritic hardened steels. ASTM A479 Duplex Stainless Steel 1.4462 Heavy Hex Nuts has security from stretch disintegration opening which is of hugeness in various applications including high temp water tanks, process plant, mixing tanks, and desalination plant. ASME SA 479 Duplex Steel UNS S31803 Lock Nutsis tempered at 1020-1070 Degree C (1868-1958 Degree F) and a while later water doused.

ASTM A479 Duplex Steel UNS S32205 Self-Locking Nuts is nitrogen redesigned duplex hardened steel that was created to fight fundamental disintegration issues experienced with the 300 game plan tempered steels. ASME SA 479 Duplex Steel UNS S31803 Coupler Nuts is two-arrange, ferritic, austenitic 22 percent chromium, 3 percent molybdenum, 5 to 6 percent nickel alloyed treated steel. ASTM A479 Duplex Steel UNS S32205 Nuts has incredible weldability and can be welded by a huge segment of the customary welding methodologies for example Ensured metal roundabout fragment welding, Gas tungsten twist welding, Plasma bend welding and Submerged-twist welding. Buy Duplex Stainless Steel Nuts in driving business segment cost from us.

[surajmetal]

ASTM A479 UNS S31803 Duplex Steel Bolts are made up of a duplex grade stainless steel. Duplex is being used as replacement to most other steel types because of the high mechanical properties, cost effectiveness and corrosion resistance of the ASME SA 479 UNS S32205 Duplex 2205 Bolts and other products of this grade.