#Grade A2-70 Fasteners

[big-bolt-nut]

Bolts and Nut Manufacturers in India -Bigboltnut

We manufacture larger diameter, high strength screws and fasteners and HV grade hot dip galvanized fasteners. We are India's largest large diameter of bolts and  nuts manufacturer and fasteners for leading contractors and consultants undertaking  projects in India, USA, Europe, Asia, Africa and Middle East in the energy, renewable energy, wind and infrastructure sectors. We are also a specialized in stainless steel hex bolts, nuts, studs and washers  used in water treatment, waste water treatment, sewage treatment,  desalination plants etc. We have different type of grade as per ISO 898-1:2013, in 8.8, 10.9, 12.9, A2-70, SS 316, SS 316L, SS316 S31, B7, L7, 8M, B8 etc.

BigBoltNut rich history, advanced manufacturing facility, and wide range of offerings make us a top-rated bolts, nuts and washer manufacturer in India. Whether you need products for power, energy, marine, or any other industry, BigBoltNut is your one-stop solution. Our commitment to quality and excellence ensures that our customers always receive best-in-class products.

Source url: https://www.bigboltnut.com/

[roll-fast]

Standard Bolts Manufacturer and Exporter in India | Roll Fast

Roll-fast takes pride in being the largest manufacturer for bigger diameter bolts in India. These headed bolts HV Bolts, High Tensile Bolts, High Tensile Fasteners, Stainless Steel Bolts, Standard Bolts, Structural Bolts, Hanger Bolts, and Timber Bolts & Washer Head Bolts are hot forged bolts and are manufactured on vertical up setter & Down Setter machines. We can offer hex bolts and screws from M-16 diameter to M-100 diameter in metric threads and from 1/2” diameter to 4” diameter in American UNC threads. We manufacture different type of grade as per ISO 898–1 (4.6, 8.8, 10.9 & 12.9), ISO 3506–1 (A1–50, A1–70, A1–80, A2–50, A2–70, A2–80, A3–50, A3–70, A3–80, A4–50, A4–70, A4–80, A5–50, A5–70, A5–80) (SS304, SS 316, SS 316L, SS316 S31), ASTM A194 (B7, L7, 8M, B8, B8M) etc. We offer bolts According to ISO 4014, ISO 4017, DIN 6914, EN 14399–4, Dast 021, BS 3698, ANSI B 18.2.1, ASME B 18.2.1, ASME B18.2.6M, ASTM F1554, ASTM A 449, BS 3692 etc. or as per customer requirement.

[topautoproducts]

Petrochemical Nuts And Bolts

https://www.dtnut.com/petrochemical-nuts-and-bolts.html

The standard refers to the American ASTM or ASME standard with new and unique technical clauses added, which is suitable for a type of petrochemical fasteners used in high temperature and high-pressure environments, including bolts, studs, nuts, etc.

 The mechanical properties and materials specified in GB/T3098/8 "Mechanical Properties of Carbon Steel Fasteners Part VIII Heat-resistant Threaded Connections" are suitable for fasteners that can withstand high temperature, alternating loads, and to a greater extent. Be sure to tighten the axial force.

 High temperature and high-pressure petrochemical fasteners - commodity fasteners and special fasteners

 1. Common Commodity wind energy fasteners:

●The type and size of hexagon head bolts meet the requirements of GB/T5782, A and B grades. The mechanical properties of these petrochemical fasteners refer to the performance grades of carbon steel bolts according to GB/T3098/1 standard: A2-50, A4-50, A2-70, A4-70;

 ●The nut type conforms to GB/T6170 I-type nut and special nut (pipe flange nut). Its mechanical properties refer to the performance grades of carbon steel according to the GB/T3098/2 standard: grades 6 and 8; the performance grades of stainless steel nuts of GB/T3098/15 are A2-50, A4-50, A2-70, A4-70 ;

 2. Special Petrochemical Fasteners:

●In order to be suitable for the conditions of high-temperature resistance, low-temperature resistance, and environmental corrosion resistance, formulate suitable special fasteners, such as full-threaded studs for pipe flanges, in accordance with the provisions of GB/T901. The dimensions of hexagon head bolts and nuts shall be carried out according to national standards.

 ●Selected materials (grades) include medium carbon alloy steels: 35CrMo (applicable temperature +100-525℃); 25Cr2MoV (applicable temperature>-20--575℃); 42 CrMo (applicable temperature +100-525℃). The strength is between 690~890Mpa, that is to say, the medium carbon alloy steel is tempered at high temperature (550℃<=tempering temperature<=600℃) to obtain comprehensive mechanical properties to meet the service of high-temperature environment.

 ●Stainless steel materials selected are: 0Cr18Mi9 (applicable temperature -196--800 ℃); 0Cr17Mi12Mo2 (applicable temperature +196--800 ℃); the strength of stainless steel material obtained by solution treatment is between 690~890Mpa, and the performance level is A2- 70 A4-50 A4-80 grade.

 ●Using American standards, using stainless steel grades and materials: ASTM A193 B8 CL.2 (for temperature +196-525℃); A193 B8M CL.2 (for temperature +196-525℃); A453660 (for temperature +29- 525℃); also includes A320L7 suitable for low temperature and high-pressure environment (applicable temperature -100℃).

 ●Special grade nut material (grade) can choose medium carbon alloy steel: 30CrMo, 35CrMo; guaranteed load

[dtnut]

Petrochemical Nuts And Bolts

The standard refers to the American ASTM or ASME standard with new and unique technical clauses added, which is suitable for a type of petrochemical fasteners used in high temperature and high-pressure environments, including bolts, studs, nuts, etc.

The mechanical properties and materials specified in GB/T3098/8 "Mechanical Properties of Carbon Steel Fasteners Part VIII Heat-resistant Threaded Connections" are suitable for fasteners that can withstand high temperature, alternating loads, and to a greater extent. Be sure to tighten the axial force.

High temperature and high-pressure petrochemical fasteners - commodity fasteners and special fasteners

Common Commodity wind energy fasteners: ●The type and size of hexagon head bolts meet the requirements of GB/T5782, A and B grades. The mechanical properties of these petrochemical fasteners refer to the performance grades of carbon steel bolts according to GB/T3098/1 standard: A2-50, A4-50, A2-70, A4-70;

●The nut type conforms to GB/T6170 I-type nut and special nut (pipe flange nut). Its mechanical properties refer to the performance grades of carbon steel according to the GB/T3098/2 standard: grades 6 and 8; the performance grades of stainless steel nuts of GB/T3098/15 are A2-50, A4-50, A2-70, A4-70 ;

Special Petrochemical Fasteners: ●In order to be suitable for the conditions of high-temperature resistance, low-temperature resistance, and environmental corrosion resistance, formulate suitable special fasteners, such as full-threaded studs for pipe flanges, in accordance with the provisions of GB/T901. The dimensions of hexagon head bolts and nuts shall be carried out according to national standards.

●Selected materials (grades) include medium carbon alloy steels: 35CrMo (applicable temperature +100-525℃); 25Cr2MoV (applicable temperature>-20--575℃); 42 CrMo (applicable temperature +100-525℃). The strength is between 690~890Mpa, that is to say, the medium carbon alloy steel is tempered at high temperature (550℃<=tempering temperature<=600℃) to obtain comprehensive mechanical properties to meet the service of high-temperature environment.

●Stainless steel materials selected are: 0Cr18Mi9 (applicable temperature -196--800 ℃); 0Cr17Mi12Mo2 (applicable temperature +196--800 ℃); the strength of stainless steel material obtained by solution treatment is between 690~890Mpa, and the performance level is A2- 70 A4-50 A4-80 grade.

●Using American standards, using stainless steel grades and materials: ASTM A193 B8 CL.2 (for temperature +196-525℃); A193 B8M CL.2 (for temperature +196-525℃); A453660 (for temperature +29- 525℃); also includes A320L7 suitable for low temperature and high-pressure environment (applicable temperature -100℃).

●Special grade nut material (grade) can choose medium carbon alloy steel: 30CrMo, 35CrMo; guaranteed load

[kmsteelindia]

Tips That Can Increase the Working Life Of Steel Fasteners

Fasteners and other fitting materials of astm a106 grade b pipe suppliers are a key part of the hardware family. These are high in demand for a variety of applications for mechanically attaching two or more items together. These are available in many materials or coatings, and Stainless Steel 304 Fasteners are in high demand since they are inexpensive to purchase and have anti-corrosion capabilities. However, if not properly maintained, they corrode. These recommendations are for you if you want to preserve the longer lifespan of stainless steel 316 fasteners in your home or office. Take a deep breath and follow them all to extend their service life.

Use of Proper Slotting Tools: Using the proper slotting tools is one of the most popular ways to extend the life of Stainless Steel 316L Fasteners. It is necessary to select an appropriate tool for slotting in order to assure holding capacity as well as determine pull out strength. This may also ensure appropriate installation, which aids in the prevention of failure.

Standard Stainless Steel Grade Selection: This valuable metal offered by alloy steel pipe suppliers in India is available in several grades, and choosing correctly among them is critical to preventing corrosion problems with the fastener. Different standards may cost you more than any other choice, but they bring surprising and unrivalled results.

Lubrication of threads: Lubrication of threads is required to maintain the long life of a stainless steel fastener and a2 70 hex head bolt because it helps to avoid stress and strain due to their sticking together around the sliding surface.

Electrochemical polishing may also increase the lifespan of your stainless-steel fastener since the layer of chromium oxide protects it from damage. It also reduces their possibilities of coming into contact with rust or other damage.

Monitoring: Last but not least, proper monitoring after a while tends to boost the working life of a stainless-steel fastener and a4-70 hex bolt. It also assists you in determining if they are becoming loose or if their grip is decreasing, etc. As a result, you can take immediate action to deal with the situation and avoid major damage.

These simple suggestions will assist you in improving the serving life of stainless steel fasteners. Aside from the above considerations, purchasing the correct model from a reputable manufacturer will also make a significant difference in their working and life. Keep all of these principles in mind since they assure long-term work that saves you time, money, and personnel.

Other forms of stainless-steel fasteners resist brittleness at lower temperatures. Nickel is incorporated into these astm a453 grade 660 steel screws. Nickel also helps to de-magnetize stainless steel. Manganese can alternatively be used in place of, or in conjunction with, nickel to achieve a similar result at a lesser cost.

Carbon can also be utilized to strengthen the steel alloy. When exposed to extreme heat, these fasteners can harden and strengthen, resulting in finer elements such as the screw point and threads.

[carsai-precisionparts]

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[abhrajjain0567]

JF Engineering Products LLP is Prominent Manufacturer, Supplier and Stockist of A2-70 Stainless Steel Fasteners. We Provide High quality of A2-70 SS Fasteners at best price. Click here and Get more Info. JFE is the best manufacturer of buttweld and forged pipe fittings, flanges, fasteners, bars, pipes and tubes of high quality of various grades and materials in Mumbai, India.