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Yasin Fasteners, located in Istanbul, Turkey, produces ASTM A193 B8T fasteners, designed for high strength and corrosion resistance. These fasteners are made from AISI 321 stainless steel, stabilized with titanium for excellent resistance to intergranular corrosion after welding or prolonged high-temperature service. Yasin Fasteners ensures every B8T fastener meets ASTM standards, providing durability and consistency for critical applications. Trusted by industries worldwide, ASTM A193 B8T fasteners deliver outstanding mechanical strength and corrosion resistance. With modern technology and strict quality checks, Yasin Fasteners offers fastening solutions tailored for demanding service environments.
ASTM A193 B8T fasteners are made from AISI 321 stainless steel, containing 17–19% chromium, 9–13% nickel, and titanium stabilizers. They provide tensile strength of 515–750 MPa, yield strength of 205 MPa, and elongation of 30%. Titanium stabilization prevents carbide precipitation during welding, enhancing resistance to intergranular corrosion. These fasteners maintain toughness and oxidation resistance at high service temperatures. Their balanced mechanical properties of strength, ductility, and corrosion resistance ensure reliable fastening performance in thermal and corrosive operating conditions.
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 Fasteners
|
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 fasteners, made from stainless steel with enhanced high-temperature strength and resistance, are commonly used in high-temperature and high-pressure environments. They are ideal for applications in the petrochemical industry, power generation, and gas processing, where they withstand harsh conditions. Their corrosion resistance and strength make them suitable for boilers, pressure vessels, and exhaust systems. These fasteners also manufacture turbines, reactors, and other critical machinery requiring reliable performance under extreme conditions.
ASTM A193 B8T fasteners from Yasin Fasteners are widely used in chemical, petrochemical, and power generation industries where exposure to heat and corrosive fluids is constant. They are used in boilers, pressure vessels, exhaust systems, and reactors that require stability at high temperatures. Marine and offshore applications also benefit from their corrosion resistance and welding stability. Construction industries rely on them for bridges, coastal infrastructure, and architectural projects that need strength and durability. With titanium stabilization and enhanced performance, ASTM A193 B8T fasteners are ideal for critical bolting where long-term reliability is needed under demanding conditions.
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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