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Our firm focuses on providing a varied selection of ASTM A193 B8M Bolts, procured from trusted suppliers celebrated for their skill in producing high-grade alloy steel goods. These stud bolts play a vital role in firmly securing different components, offered in an extensive range of sizes, grades, and industry benchmarks to serve a wide variety of customer needs. Highly regarded in fields like construction and engineering, our premium ASTM A193 B8M Bolts are valued for their outstanding resistance to corrosion and wear. By employing specialized alloys and stringent heat treatment methods, these stud bolts are designed to boost their hardenability, guaranteeing uniform mechanical properties throughout their entire structure.
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% |
At Sumakhsteel, we take great pride in being the largest supplier and manufacturer in the USA, delivering advanced solutions for every one of your piping requirements. With cutting-edge manufacturing facilities strategically situated across the USA, we maintain an extensive inventory of more than 25,000 tons of top-grade materials kept ready in stock.
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We supply these ASTM A193 B8M Bolts conforming to DIN, ISO, JIS or ANSI Standard.
Corrosion Resistance: B8M bolts are manufactured from stainless steel (usually AISI 316), which delivers outstanding corrosion resistance, particularly in marine settings and other highly aggressive environments. This makes them well-suited for a broad variety of uses where contact with moisture or chemicals is a factor.
Strength and Durability: These bolts are recognized for their toughness and longevity, delivering dependable performance in high-stress situations. The stainless steel found in B8M bolts holds onto its mechanical properties in both hot and cold temperatures, guaranteeing stability and strength across differing environmental conditions.
Aesthetic Appeal: Stainless steel bolts possess an inherently appealing look, which is frequently sought after in uses where appearance matters, such as architectural and decorative fittings.
Versatility: ASTM A193 B8M bolts are adaptable and are used throughout numerous industries such as construction, automotive, marine, and chemical processing sectors. They work well for both structural and non-structural uses where corrosion resistance and strength are needed.
Compliance: As a component of the ASTM A193 specification, B8M bolts meet rigorous standards for material quality, dimensional accuracy, and mechanical properties, guaranteeing dependability and consistency in performance.
ASTM A193 B8M Bolts serve applications as varied as the industries they support, led 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.
Yes, ASTM A193 B8M bolts, which are manufactured from stainless steel, can be prone to galvanic corrosion when they come into contact with more noble metals in the presence of an electrolyte. Choosing the right materials and taking preventive steps, like separating dissimilar metals, are crucial to reducing this risk.
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