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Murad Fasteners stands out as a reliable manufacturer and supplier based in Doha, Qatar, specializing in high-quality ASTM A193 B8C Bolts that are perfect for tough and corrosive environments. With state-of-the-art manufacturing facilities and rigorous quality control measures, Murad Fasteners ensures that each bolt features precise threading, accurate dimensions, and consistent performance. These bolts are crafted to meet international standards and are commonly utilized in critical industrial settings. Catering to sectors like oil and gas, petrochemical, power generation, and various industrial applications, Murad Fasteners is committed to providing dependable fastening solutions at competitive prices and with prompt delivery.
The ASTM A193 B8C Bolts are made from austenitic stainless steel, comparable to Type 347, and are stabilized with columbium (niobium). This alloy is enriched with chromium and nickel, offering outstanding resistance to corrosion and oxidation, while columbium enhances resistance to carbide precipitation. On the mechanical side, these bolts boast impressive tensile and yield strength, remarkable toughness, and high ductility. They maintain their mechanical integrity even at elevated temperatures and show improved resistance to creep and stress rupture during extended high-temperature use.
| 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 B8C Bolt
|
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.
These ASTM A193 B8C Bolts are extensively used in situations that demand both corrosion resistance and strength under high temperatures. You’ll often find them in heat exchangers, boilers, pressure vessels, flanged joints, and piping systems within the oil and gas, petrochemical, and power plant industries. Their design makes them perfect for assemblies that face thermal cycling, corrosive environments, and high operating temperatures. Thanks to their durability, oxidation resistance, and mechanical reliability, they are an excellent choice for critical industrial fastening needs.
At Murad Fasteners, we prioritize the secure and efficient packaging of ASTM A193 B8C bolts to ensure their safe delivery and optimal condition upon arrival. Each bolt is carefully packed in high-quality, durable containers that protect against damage and contamination. Our packaging includes clear labeling for easy identification and handling. We offer customized packaging solutions to meet specific client needs, ensuring that every order arrives intact and ready for use in demanding industrial applications.
Murad Fasteners is a leading manufacturer and supplier of high-quality fasteners in Doha, Qatar, with over 8 years of experience serving global industries.
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