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Hamad Fasteners, a top-notch manufacturer and supplier based in Riyadh, Saudi Arabia, is well-known for providing high-quality fastening solutions that adhere to international standards. One of their standout products, the ASTM A453 Grade 660 Class B bolts, is particularly popular due to their remarkable high-temperature strength, durability, and resistance to both corrosion and oxidation. These bolts are specifically designed for tough environments where reliability and long-lasting performance are crucial. With a strong focus on precision, quality assurance, and customer satisfaction, Hamad Fasteners proudly serves industries around the globe with trustworthy fastening products.
The ASTM A453 Grade 660 Class B bolts are made from a robust iron-nickel-chromium alloy, enhanced with molybdenum, titanium, and trace elements to improve their mechanical properties and thermal stability. They boast an impressive tensile strength of about 895 MPa and a yield strength of roughly 585 MPa, along with excellent resistance to creep and stress rupture. Even at high temperatures, these bolts maintain their ductility and toughness, making them ideal for extended use in high-pressure and high-temperature settings.
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 A 453 GR 660 Class B bolts are required at high temperatures and high pressures. Due to their excellent strength and stability, they are widely used in the aerospace, fuel and power industries. These bolts create critical components in gas turbines, reactors and pressure vessels, ensuring reliable performance in extreme conditions. It is also used in construction assemblies for heavy machinery where high tensile strength and high temperature resistance are critical.
These ASTM A453 Grade 660 Class B bolts find extensive application in industries that require outstanding strength and heat resistance. In power generation facilities, they are commonly used in turbines, boilers, and heat exchangers that operate under significant thermal stress. In the oil and gas, as well as petrochemical sectors, they are essential for reactors, pressure vessels, and flanges due to their impressive resistance to oxidation and corrosion. The aerospace, marine, and heavy engineering industries also depend on these bolts for critical fastening tasks. Their unique combination of durability, strength, and thermal stability guarantees reliable performance even in the most extreme operating conditions.
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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