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Hamad Fasteners, a reputable manufacturer and supplier based in Riyadh, Saudi Arabia, is recognized for providing top-notch fastening solutions that meet rigorous industrial standards. One of their standout products is the ASTM A193 B8T stud bolts, crafted from high-quality stainless steel to ensure exceptional strength, durability, and resistance to corrosion, even in the toughest environments. These stud bolts are designed to comply with international standards and are widely utilized in industries that require high performance, reliability, and longevity. Hamad Fasteners proudly serves sectors like petrochemical, oil and gas, power generation, and construction with their precisely engineered fastening products.
The ASTM A193 B8T stud bolts are made from Grade 321 stainless steel, which is stabilized with titanium, offering remarkable resistance to intergranular corrosion and oxidation at high temperatures. Their chemical makeup includes a balanced mix of chromium and nickel, ensuring they can withstand high-stress conditions. Mechanically, these bolts boast high tensile strength, yield strength, and impressive toughness, making them perfect for high-pressure and high-temperature applications. They maintain their structural integrity even under thermal cycling, guaranteeing long-term reliability.
| 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 Stud Bolts
| 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 stud bolts find extensive use in critical applications across various industries, including chemical processing, oil refineries, power plants, marine engineering, and construction. Their outstanding resistance to heat, scaling, and stress corrosion makes them ideal for boilers, heat exchangers, pressure vessels, and piping systems. They are also employed in aerospace and high-temperature furnace equipment, where oxidation resistance and stability are essential. With their superior mechanical and corrosion-resistant properties, ASTM A193 B8T stud bolts offer reliable fastening solutions in demanding environments.
We guarantee complete customer satisfaction by providing thorough documentation with our ASTM A193 B8T Stud Bolts. Our comprehensive package includes a commercial invoice, packaging list, fumigation certificate, heat treatment chart, and a NABL-approved lab test report. Additionally, we offer MTC certificates as per EN 10204/3.1b, PMI Test Certificates, 100% radiography test reports, and Third Party Inspection Certificates, ensuring the highest product quality and integrity standards.
Hamad Fasteners is one of the Industrial suppliers and manufacturers of quality fasteners in Riyadh, Saudi Arabia, that has spent more than 12 years serving various industries.
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