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Yasin Fasteners, a prominent manufacturer and supplier based in Istanbul, Turkey, specializes in top-notch fastening solutions, including the ASTM A193 B8T Bolts. These bolts are crafted with precision and meet rigorous international standards, ensuring they deliver exceptional durability, strength, and corrosion resistance even in the toughest environments. Made from titanium-stabilized stainless steel, ASTM A193 B8T Bolts are designed to perform well at high temperatures, guaranteeing a long service life and reliability. Yasin Fasteners has earned a global reputation for its commitment to quality, timely deliveries, and its ability to cater to the fastening needs of critical sectors like power generation, petrochemical, oil and gas, and marine.
ASTM A193 B8T Bolts are made from Type 321 stainless steel, an austenitic grade that’s stabilized with titanium. Their chemical makeup consists of 17–19% chromium, 9–12% nickel, titanium (≥5xC), ≤0.08% carbon, ≤2% manganese, and ≤1% silicon. The addition of titanium enhances their resistance to sensitization and intergranular corrosion. These bolts boast a minimum tensile strength of 75 ksi and a yield strength of 30 ksi, providing excellent toughness, ductility, and mechanical stability, even in extreme temperatures or cryogenic conditions. Their outstanding resistance to oxidation and scaling makes them reliable for fastening in aggressive operating environments.
| 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 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.
ASTM A193 B8T bolts, made from AISI 316 stainless steel, are widely used in high-temperature and high-pressure environments. They are ideal for applications in the chemical and petrochemical industries, oil and gas, power generation, and marine environments. These bolts offer excellent corrosion resistance, strength, and durability, making them suitable for use in flanges, valves, pressure vessels, and heat exchangers. Their ability to withstand extreme conditions ensures reliability and longevity in critical industrial applications.
ASTM A193 B8T Bolts are widely utilized in industries where high-temperature and corrosion resistance are crucial. They find extensive application in boilers, turbines, pressure vessels, and heat exchangers within power plants. In the petrochemical and chemical processing sectors, these bolts secure piping systems, flanges, and equipment that are exposed to corrosive chemicals and demanding service conditions. They are also essential in oil and gas refineries, marine settings, and offshore applications, where resistance to chlorides and long-term durability are vital. Their ability to maintain integrity under thermal cycling further enhances their reliability in these challenging environments.
Yasin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Istanbul, Turkey, with over 8 years of experience serving global industries.
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