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Brian Fasteners of Houston, USA, is a world-class manufacturer and exporter of high-performance fasteners with specific expertise in ASTM A453 GR 660 Class B Bolts. With over three decades of experience in the industry, Brian Fasteners specializes in providing precision-engineered solutions for high-pressure and high-temperature applications. Bolts are widely accepted in petrochemical, power generation, and aerospace industries for their strength and durability. The state-of-the-art manufacturing plants of the company and rigorous quality checks guarantee uniform performance of the products, with both national and international standards. Brian Fasteners excels in reliability, timely delivery, and unparalleled technical support throughout the United States and the world.
ASTM A453 GR 660 Class B Bolts are produced from an austenitic stainless steel alloy with the main constituents consisting of nickel (24–27%), chromium (13–17%), iron (balance), titanium, and molybdenum. These bolts are strain-hardened and solution-treated for improved mechanical strength. They provide a minimum tensile strength of 125 ksi, a yield strength of 105 ksi, and superior creep strength at high temperatures up to 1100°F (593°C). Their toughness, oxidation resistance, and fatigue strength make them suitable for harsh environments in high-performance industrial applications.
Material | Dimensions | Standards | Size | Length |
ASTM A453 GR 660 CLASS B Bolts | ASME B18.2.1, B18.3 | ASTM, ASME | M 02 to M 160 | 3 mm to 200 mm |
|
Element |
Content |
|---|---|
|
Carbon |
0.08 max |
|
Manganese |
2.00 max |
|
Phosphorus, max |
0.040 max |
|
Sulfur, max |
0.030 max |
|
Silicon |
1.00 max |
|
Nickel |
24.0-27.0 |
|
Chromium |
13.5-16.0 |
|
Molybdenum |
1.00-1.50 |
|
Tungsten |
– |
|
Titanium |
1.9-2.35 |
|
Aluminum |
0.35 max |
|
Vanadium |
0.10-0.50 |
|
Boron |
0.001-0.010 |
| Tensile Strength/Ultimate Tensile Stress (UTS) – (Mpa) | 895 min |
| Yield Strength/Proof Stress(0.2% Offset) (YS) – (Mpa) | 585 min |
| Elongation in 4D (El) | 15 |
| Reduction | 18 |
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 A453 GR 660 Class B Bolts have widespread applications in situations where high-temperature operation and stress corrosion cracking resistance are of paramount importance. The typical applications span steam turbines, pressure vessels, nuclear reactors, heat exchangers, flanges, and manifolds in power generation, petrochemical, aerospace, and marine industries. Their dependability under mechanical stress and thermal cycling renders them highly suitable for critical joints and assemblies that experience harsh operating conditions. These bolts are ideal in high-pressure piping systems and structural constructions where long-term strength, safety, and adherence to strict engineering specifications are necessary.
At Brian Fasteners ASTM A 453 GR 660 Class B Bolts are carefully fastened for quality and protection during movement. Each bolt is securely wrapped with protective coatings to prevent corrosion. They are packaged in sturdy waterproof boxes or boxes labeled for easy identification and handling. Customized packaging is available to meet specific requirements, ensuring a safe and convenient delivery to our customers in Houston , the USA, and beyond.
Brian Fasteners is a leading manufacturer and supplier of high-quality fasteners in Houston , USA, with over 8 years of experience serving global industries.
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