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Murad Fasteners has established itself as a reliable manufacturer and supplier in Doha, Qatar, specializing in high-quality ASTM A193 B8T Nuts that are specifically designed for high-temperature and high-pressure applications. With state-of-the-art manufacturing facilities and rigorous quality control measures, Murad Fasteners ensures that their nuts feature precise threading, outstanding dimensional accuracy, and dependable performance. These nuts are crafted to meet the stringent demands of various industries and adhere to international standards. Catering to sectors such as oil and gas, petrochemicals, power generation, and heavy engineering, Murad Fasteners offers both standard and customized solutions, all while maintaining competitive pricing and prompt delivery.
The ASTM A193 B8T Nuts are made from austenitic stainless steel that is stabilized with titanium, akin to Type 321 stainless steel. This alloy is enriched with chromium and nickel, providing excellent resistance to corrosion and oxidation, while the titanium helps prevent carbide precipitation at elevated temperatures. In terms of mechanical properties, these nuts boast impressive tensile and yield strength, remarkable toughness, and high ductility. They also show enhanced creep resistance and stress rupture strength, ensuring reliable performance even under prolonged exposure to high temperatures and thermal cycling.
| 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 B8T Nuts
| 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 B8T Nuts find extensive use in environments characterized by high temperatures and pressures. They are frequently utilized in heat exchangers, boilers, pressure vessels, flanged joints, and piping systems across the oil and gas, petrochemical, and power generation industries. These nuts are particularly well-suited for assemblies that face continuous heat, thermal stress, and corrosive environments. Their stability, resistance to oxidation, and mechanical reliability make them an excellent choice for critical industrial fastening applications that demand long-lasting performance.
We provide complete documentation on our ASTM A193 B8T nuts, including 100% radiography test reports, raw material test reports, customer test reports, and heat treatment plans. This includes our packaging, fumigation certificates, marketing invoices, quality assurance systems, and raw materials. In addition, we issue manufacturer test certificates (MTC) under EN 10204/3.1B. Our ASTM A193 B8T nuts are packaged according to industry standards and manufactured to meet customer specifications, ensuring quality and complying with all required documentation.
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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