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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 |
| 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 |
| 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% |
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These ASTM A193 B8 Stud Bolts are supplied by us in accordance with DIN, ISO, JIS or ANSI Standard.
Corrosion Resistance: B8 stud bolts are manufactured from stainless steel (Type 304), a material that provides outstanding corrosion resistance, particularly in settings exposed to moisture or chemicals.
High Temperature Resistance: These bolts perform well in high-temperature applications reaching up to 870°C (1600°F), which makes them well-suited for sectors like petrochemical, power generation, and oil and gas.
Mechanical Properties: ASTM A193 B8 stud bolts feature strong mechanical characteristics, such as high tensile strength and durability, making them dependable for fastening critical joints and structures.
Versatility: They are applicable across a range of uses where corrosion resistance, strength, and high-temperature tolerance need to be combined.
Compliance: ASTM A193 B8 stud bolts conform to ASTM A193 and ASME B16.5 standards, guaranteeing that they satisfy defined requirements for dimensions, material properties, and testing procedures.
ASTM A193 B8 Stud Bolts serve applications as varied as the industries they support, led chiefly by the aerospace, railway, construction and automotive sectors, along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
