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Rinku Fasteners features ASTM A193 B8 Stud Bolts designed for high temperature and high pressure environments. Made from austenitic stainless steel, these bolts provide exceptional strength and corrosion resistance, ideal for use in the petrochemical, oil, and gas industries Precisely designed to meet stringent ASTM standards , our B8 Stud Bolts ensure reliable performance and durability in critical applications. Trust Rinku Fasteners for superior fastening solutions that maintain the highest standards of durability and safety.
Rinku Fasteners is a reliable manufacturer and distributor of high-quality ASTM A193 B8 stud bolts located in Kolkata, India. The company, with a lot of industrial fastener production experience, is devoted to providing products that are made with exact precision and meet the toughest standards worldwide. Their ASTM A193 B8 stud bolts are made to last with performance in the extreme environment by using the best raw materials and the latest manufacturing methods.
Being a brand that stands for dependability, corrosion resistance, and stability in quality, Rinku Fasteners is engaged in a wide range of industries such as petrochemicals, construction, power generation, and marine industries. Their customer-focused strategy and on-time delivery position them as the most attractive option not only in India but also in other countries.
| Element | B7 | B8 | B8M |
| Carbon | 0.37 – 0.49% | 0.08% max | 0.08% max |
| Manganese | 0.65 – 1.10% | 2.00% max | 2.00% max |
| Phosphorus, max | 0.035% | 0.045% | 0.045% |
| Sulfur, max | 0.040% | 0.030% | 0.030% |
| Silicon | 0.15 – 0.35% | 1.00% max | 1.00% max |
| Chromium | 0.75 – 1.20% | 18.0 – 20.0% | 16.0 – 18.0% |
| Nickel | 8.0 – 11.0% | 10.0 – 14.0% | |
| Molybdenum | 0.15 – 0.25% | 2.00 – 3.00% |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 – 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 – 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 – 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 – 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 – 1-1/2 | 100 | 50 | 28 | 45 | |
| B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
| 7/8 – 1 | 100 | 80 | 20 | 45 | |
| 1-1/8 – 1-1/4 | 95 | 65 | 25 | 45 | |
| 1-3/8 – 1-1/2 | 90 | 50 | 30 | 45 |
|
Material |
Specification |
Standards |
Size
|
Length |
|
ASTM A193 B8 StudBolt
|
IS
BS
ASTM
|
DIN, ISO, JIS, GB, IS, BS, ASTM |
M 02 to M 160
|
3 mm to 200
|
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
ASTM A193 B8 stud bolts are made of austenitic stainless steel, generally corresponding to Grade 304. The chemical composition of the material consists of chromium (18–20%), nickel (8–11%), and carbon with a very low content to improve the corrosion resistance. These bolts have very good mechanical properties such as high tensile strength, good ductility, and strength at elevated temperatures and under pressure. They remain structurally stable in corrosive atmospheres and, therefore, are highly resistant to oxidation and attack by chemicals. Thanks to their excellent mechanical properties, ASTM A193 B8 stud bolts are the perfect choice for use in heavily loaded service conditions.
One of the primary equipment is A193 B8 stud bolts which are used in a variety of different industries where there is utmost need of secure and long-lasting fastening in harsh environments. Some of the common areas to find them are petrochemical plants, refineries, power generation facilities, and LNG processing units, where they contribute greatly to the resistance against high temperatures and corrosive media. These fasteners are most suitable for the use of flange connections, pressure vessels, heat exchangers, boilers, and pipeline assemblies. The stainless-steel nature of them gives assurance of their stability in both acidic and alkaline conditions, thus they become the right ones for chemical plants and marine applications. To sum up, A193 B8 stud bolts are the ones that can be relied upon to give off their best in high-stress, high-temperature, and corrosive service conditions.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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