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Hamad Fasteners, located in Riyadh, Saudi Arabia, has built a solid reputation as a manufacturer and supplier of precision-engineered fastening solutions that meet international standards. The company caters to essential industries like oil & gas, petrochemical, marine, construction, and power generation, and is well-known for its durable, high-performance products. One of their standout offerings, the ASTM A 453 GR 660 Class D Fasteners, is celebrated for its exceptional strength, high-temperature resistance, and impressive longevity. These fasteners are crafted to perform reliably in extreme industrial settings where safety and stability are paramount.
The ASTM A 453 GR 660 Class D Fasteners are made from a precipitation-hardened alloy steel that includes iron, chromium, nickel, molybdenum, and titanium. This sophisticated blend provides remarkable resistance to stress corrosion cracking and oxidation, even at elevated temperatures. With a tensile strength of around 160 ksi, these fasteners boast the highest mechanical strength among all Class variants of this grade, along with excellent creep resistance and durability. Their strong chemical and mechanical properties make them perfect for heavy-duty, high-pressure, and high-temperature applications.
Material | Dimensions | Standards | Size | Length |
ASTM A453 GR 660 CLASS D 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 |
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 D fasteners are primarily used in high-temperature and high-stress applications where strength and corrosion resistance are critical. They are commonly employed in aerospace, power generation, and chemical processing industries. These fasteners are ideal for securing components in environments subject to extreme heat and pressure, such as gas turbines, reactor vessels, and exhaust systems. Their durability ensures reliable performance in demanding and critical industrial applications.
These fasteners find extensive use in industries that demand secure connections under harsh operating conditions. They’re commonly utilized in turbines, boilers, pressure vessels, and heat exchangers, where thermal and mechanical stress is significant. Petrochemical plants, refineries, and power generation facilities rely on them for critical joints in flanges and other high-stress components. Additionally, ASTM A 453 GR 660 Class D Fasteners are well-suited for marine and offshore engineering, ensuring long-term reliability, leak-proof performance, and safety in highly corrosive and challenging environments.
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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