Home > Other Material > ASTM A193 B8M Fasteners
Material | Specification | Standards | Size | Length |
ASTM A193 B8M Fasteners
| 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 | |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8MM Class 1 | All | 75 | 30 | 30 | 50 |
| B8M 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 | |
| B8MM 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 | B8M | B8MM |
| 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% |
At Koasteel, we’re proud to be the largest supplier and manufacturer in the New Zealand, delivering advanced solutions for every one of your piping requirements. With cutting-edge manufacturing facilities strategically positioned in the New Zealand, we maintain an extensive inventory of more than 25,000 tons of top-quality materials kept in stock and ready to go.
Reach out to us for a fast quote tailored to your needs.
We supply These ASTM A193 B8M Fasteners in compliance with DIN, ISO, JIS or ANSI Standard.
Corrosion Resistance: B8M fasteners are manufactured from stainless steel (usually AISI 316), which provides outstanding protection against corrosion, particularly in marine or chloride-heavy conditions. This makes them well-suited for outdoor use and sectors such as marine, chemical processing, and oil & gas.
High Strength: These fasteners undergo heat treatment to reach a defined mechanical property like tensile strength, ensuring they can bear substantial loads without deforming or failing.
Temperature Resistance: They demonstrate strong resistance to elevated temperatures, making them appropriate for applications where heat exposure or thermal cycling frequently occurs, such as in engines or turbines.
Durability: Stainless steel B8M fasteners are long-lasting and offer an extended service life thanks to their resistance to corrosion, oxidation, and wear.
Versatility: They work well across a broad spectrum of applications owing to their blend of corrosion resistance, strength, and temperature resistance characteristics.
ASTM A193 B8M Fasteners find use across a wide range of sectors, led chiefly by the aerospace, railway, construction and automotive fields, along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, and more.
