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Houston-based USA company Brian Fasteners is a prominent supplier and manufacturer of premium ASTM A193 B8 bolts. They specialize in precision engineering and dependable performance and cater to industries such as petrochemical, construction, and power generation. With unmatched devotion to industry standards and customer satisfaction, the company guarantees each product exceeds or meets expectations. Their ASTM A193 B8 bolts are made of premium-grade stainless steel and provide superior corrosion resistance and durability. Supported by state-of-the-art manufacturing facilities and technical expertise, Brian Fasteners is a name to reckon with in the fastener business in domestic as well as global markets.
ASTM A193 B8 bolts are manufactured using AISI 304 stainless steel and are noted for high nickel and chromium content to provide superior corrosion resistance and durability. These bolts are solution annealed and strain-hardened for added strength. Mechanically, they have a minimum tensile strength of 75 ksi, yield strength of 30 ksi, and excellent elongation and hardness. Their uniform mechanical and chemical properties make them suitable for high-temperature and high-pressure conditions, particularly where long-term performance is essential. The well-balanced makeup guarantees oxidation, wear, and exposure to harsh chemicals, which makes them reliable under harsh operating conditions.
|
Material |
Specification |
Standards |
Size
|
Length |
|
ASTM A193 B8 Bolt
|
IS
BS
ASTM
|
DIN, ISO, JIS, GB, IS, BS, ASTM |
M 02 to M 160
|
3 mm to 200 mm
|
| 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 |
| 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% |
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 bolts find applications in critical processes in a wide range of industries. Their strong corrosion resistance renders them suitable for chemical processing, marine exposure, and oil and gas refineries. They are most commonly used in pressure vessels, heat exchangers, flanges, and valves because of their resistance to high temperatures and pressures. Power plants and construction industries also use these bolts for strength and long-term performance. Due to superior mechanical strength and non-magnetic behavior, B8 bolts are a popular option for industries that require high reliability, safety, and adherence to strict engineering norms.
At Brian Fasteners, ASTM A193 B8 bolts are carefully packaged to ensure they reach you in pristine condition. Each bolt is individually inspected and wrapped to prevent damage during transit. Our packaging includes protective coatings and sturdy containers to safeguard against corrosion and mechanical stress. Additionally, we provide detailed labeling for easy identification and inventory management. Our commitment to careful packaging ensures that your high-quality fasteners arrive ready for use, maintaining their integrity and performance.
Brian Fasteners is a leading manufacturer and supplier of high-quality fasteners in Houston , USA, with over 8 years of experience serving global industries.
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