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Material | Specification | Standards | Size | Length |
ASTM A193 B8M 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 | |
| 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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We supply These ASTM A193 B8M Bolts in accordance with DIN, ISO, JIS or ANSI Standard.
Corrosion Resistance: B8M bolts are manufactured from stainless steel (usually AISI 316), which delivers outstanding resistance to corrosion, particularly in marine settings and other highly corrosive conditions. This makes them well-suited for a broad variety of applications where contact with moisture or chemicals is a concern.
Strength and Durability: These bolts are recognized for their strength and durability, providing dependable performance under high-stress conditions. The stainless steel used in B8M bolts maintains its mechanical properties at both elevated and low temperatures, guaranteeing stability and strength across differing environmental conditions.
Aesthetic Appeal: Stainless steel bolts have an inherently appealing look, which is frequently sought after in applications where aesthetics matter, such as architectural and decorative installations.
Versatility: ASTM A193 B8M bolts are adaptable and are used across numerous industries including construction, automotive, marine, and chemical processing industries. They are appropriate for both structural and non-structural applications where corrosion resistance and strength are needed.
Compliance: As part of the ASTM A193 specification, B8M bolts meet strict standards for material quality, dimensional accuracy, and mechanical properties, ensuring dependability and consistency in performance.
ASTM A193 B8M Bolts serve applications as varied as the industries they support, driven mainly by the aerospace, railway, construction and automotive industries along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
