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Brian Fasteners is a renowned manufacturer and supplier of high-quality ASTM A193 B8T Stud Bolts. Our products are in high demand due to their superior features and reliability. We produce these stud bolts adhering to various standards, specifications, designations, and custom dimensions to meet diverse industrial needs. Utilizing advanced machinery and equipment, we ensure that every ASTM A193 B8T Stud Bolt is crafted to the highest quality, making them ideal for various industrial applications.
Based in Houston, USA, Brian Fasteners is a top producer and supplier of premium ASTM A193 B8T Stud Bolts that are made to last in tough industrial settings. Type 321 stainless steel, which provides exceptional resistance to corrosion, high temperatures, and intergranular attack, is used to make our B8T stud bolts. Our products are widely used in the petrochemical, power generation, and marine industries and are manufactured in accordance with ASTM standards. At Brian Fasteners, we guarantee prompt delivery, accurate machining, and exceptional product quality. To satisfy a variety of application needs in international markets, we offer a large selection of standard and custom sizes.
| 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 B8T Stud Bolts
| IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 | 3 mm to 200 mm |
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.
The Type 321 stainless steel used to make ASTM A193 B8T Stud Bolts is stabilised with titanium (5x carbon content) to stop intergranular corrosion. They are composed of iron (balance), nickel (9–13%), chromium (17–20%), and trace amounts of carbon, silicon, and manganese. Tensile strength ≥ 75 ksi (515 MPa), yield strength ≥ 30 ksi (205 MPa), and 30% elongation are all displayed by these bolts. B8T stud bolts are used in high-pressure and high-temperature applications and are known for their exceptional mechanical integrity and resistance to corrosion, particularly in settings where welding or thermal cycling occurs frequently.
Applications requiring high strength, resistance to corrosion, and thermal stability frequently use ASTM A193 B8T Stud Bolts. They are frequently found in nuclear power plants, refineries, oil and gas, chemical processing, and power generation facilities. They work particularly well for welded structures and piping systems that are exposed to corrosive gases or fluids. These bolts are perfect for boilers, heat exchangers, pressure vessels, and high-temperature manifolds because the titanium stabilisation of 321 stainless steel resists intergranular corrosion after welding. B8T stud bolts from Brian Fasteners provide enduring performance and security in even the most taxing operating conditions.
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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