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Hamad Fasteners, a top-notch manufacturer and supplier based in Riyadh, Saudi Arabia, is well-known for delivering high-performance fastening solutions that meet international standards. One of their standout products, the ASTM A453 Grade 660 Class A fasteners, is celebrated for its exceptional strength, heat resistance, and outstanding corrosion protection. These fasteners are specifically crafted for high-temperature and high-pressure applications, ensuring they stand the test of time and perform reliably in even the toughest industrial environments. With a strong focus on quality assurance and customer satisfaction, Hamad Fasteners has earned its reputation as a trusted partner for industries around the globe.
The ASTM A453 Grade 660 Class A fasteners are primarily made from iron, nickel, and chromium, with added elements like molybdenum and titanium to boost their strength and stability at high temperatures. They boast impressive mechanical properties, featuring a tensile strength of about 620 MPa and a yield strength of roughly 310 MPa. These fasteners also retain their toughness and ductility, even under extreme thermal conditions, providing resistance to oxidation, stress corrosion cracking, and creep. This makes them perfect for long-term use in critical environments.
Material | Dimensions | Standards | Size | Length |
ASTM A453 GR 660 CLASS A Fasteners | 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 |
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ASTM A 453 GR 660 Class A fasteners are widely used in high-temperature environments such as power plants, petrochemical plants, and aerospace applications Ideal for critical components requiring high strength and power under extreme conditions in. These fasteners are commonly used in steam turbine components, pressure vessels and high pressure valves. Resistance to thermal expansion and corrosion makes them suitable for demanding applications where reliability and performance are important.
You’ll find ASTM A453 Grade 660 Class A fasteners widely used in industries that require both strength and heat resistance. They play a crucial role in power generation plants, where they are used in turbines, boilers, and heat exchangers, all of which often operate at high temperatures. In the petrochemical and oil & gas sectors, these fasteners are essential for reactors, flanges, and pressure vessels, thanks to their excellent corrosion resistance. The aerospace, marine, and heavy engineering industries also rely on these fasteners for their durability and performance under stress. Their unique blend of strength and longevity makes them vital for critical fastening applications.
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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