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Rinku Fasteners, a reputable manufacturer and supplier located in Kolkata, India, proudly presents a top-notch selection of ASTM A453 GR 660 Class B Bolts, crafted for outstanding performance in high-temperature and high-pressure settings. Utilizing cutting-edge technology and rigorous quality control, these bolts offer remarkable strength, durability, and resistance to thermal stress. Rinku Fasteners guarantees precise dimensions, a flawless surface finish, and dependable mechanical integrity to cater to the demands of critical industries. Their Class B bolts are extensively supplied to sectors like power generation, petrochemical, aerospace, and refineries, delivering reliable fastening solutions for the toughest operational challenges.
ASTM A453 GR 660 Class B Bolts are made from an austenitic alloy that includes nickel, chromium, molybdenum, and titanium, providing excellent resistance to corrosion and oxidation. In terms of mechanical properties, they boast high tensile and yield strength, along with impressive creep and stress-rupture resistance at temperatures reaching up to 700°C. These bolts also demonstrate exceptional hardness, fatigue resistance, and dimensional stability even under harsh working conditions. Their unique blend of strong composition and superior mechanical performance makes them perfect for applications that demand lasting strength, thermal resilience, and long-term reliability.
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 find their place in various industries where components need to endure extreme temperatures and pressures. They’re frequently used in power plants, turbines, boilers, steam systems, and heat exchangers thanks to their impressive high-temperature strength. In the petrochemical and refinery sectors, these bolts are essential for securing flanges, valves, pressure vessels, and reactors that face corrosive and thermal challenges. Additionally, they play a vital role in aerospace and industrial heating equipment, ensuring safety and reliability in demanding environments.
At Rinku 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 Kolkata, the India, and beyond.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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