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Hamad Fasteners, a well-respected manufacturer and supplier based in Riyadh, Saudi Arabia, is known for delivering top-notch fastening solutions that adhere to international quality standards. One of their standout products, the ASTM A453 Grade 660 Class D bolts, is highly regarded for its remarkable strength, resistance to oxidation, and capability to endure extreme temperatures. These specialized bolts are crafted to ensure dependable performance in high-pressure and high-stress situations. With a strong focus on quality, precision engineering, and customer satisfaction, Hamad Fasteners guarantees that their ASTM A453 Grade 660 Class D bolts offer both durability and efficiency for essential industrial applications.
These bolts are made from precipitation-hardened austenitic stainless steel, which includes chromium, nickel, molybdenum, and titanium. They boast impressive mechanical properties, featuring a tensile strength of about 895 MPa and a yield strength of around 585 MPa, along with excellent hardness and creep resistance. Even at elevated temperatures reaching up to 700°C, these bolts maintain their structural integrity and performance, ensuring a long service life and reliability in challenging environments. Their exceptional blend of strength, toughness, and heat resistance makes them perfect for specialized applications.
Material | Dimensions | Standards | Size | Length |
ASTM A453 GR 660 CLASS D 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 D bolts are essential for high-temperature and high-stress applications. Commonly used in aerospace, power generation, and petrochemical sectors, they secure critical components like gas turbines, reactor vessels, and exhaust systems. Their exceptional strength and resistance to extreme conditions make them ideal for maintaining structural integrity and performance in challenging environments. These bolts are designed to withstand severe temperatures and corrosive elements, ensuring reliable operation and safety.
ASTM A453 Grade 660 Class D bolts find extensive use in industries that demand high strength and resistance to extreme heat and pressure. In the power generation field, they are utilized in turbines, boilers, and heat exchangers. The petrochemical and oil & gas sectors also rely on them for reactors, valves, and pressure vessels that face high-temperature conditions. Additionally, industries such as aerospace, marine, and heavy engineering depend on these bolts for critical fastening needs. Their durability and ability to withstand harsh operating conditions make them essential for mission-critical projects.
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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