ASTM A 453 GR 660 Class D Fasteners Manufacturer and Supplier in Dubai, UAE
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Majid Fasteners is a trusted manufacturer and supplier of high-quality ASTM A453 Grade 660 Class D fasteners in Dubai, UAE. With a strong focus on precision engineering and durable performance, the company delivers premium bolts, nuts, studs, and other fastening solutions designed for high-temperature and high-stress applications. Backed by advanced manufacturing facilities and strict quality controls, Majid Fasteners ensures every product meets international standards and industry expectations. Serving sectors such as oil and gas, petrochemicals, power generation, and marine, the company offers reliable, corrosion-resistant fasteners that perform exceptionally in demanding environments across the Middle East.
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What is ASTM A453 GR 660 Class D Fasteners?
ASTM A453 Grade 660 Class D fasteners are engineered from an austenitic stainless steel alloy containing elements such as chromium, nickel, molybdenum, and titanium for enhanced strength and corrosion resistance. Their composition delivers excellent performance in high-temperature environments. These fasteners offer superior mechanical properties, including high tensile and yield strength, exceptional stress-rupture resistance, and reliable toughness under extreme conditions. Widely used in power plants, petrochemical units, and high-pressure systems, ASTM A453 Gr 660 Class D bolts, nuts, and studs ensure long-term durability and stability in demanding applications.
ASTM A 453 Gr 660 Heavy Hex Fasteners, Gr 660 Class D Hex Fasteners, Gr 660 Lock Fasteners, SS ASTM A453 Self Locking Fasteners, ASTM A453 Grade 660 Class D Fasteners Stockist in Dubai, UAE.
ASTM A 453 GR 660 Class D Fasteners Specifications
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 |
ASTM A 453 GR 660 Class D Fasteners Chemical Composition
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 |
ASTM B 453 GR 660 Class D Fasteners Mechanical Properties
| High 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 Heavy Hex Fasteners, Gr 660 Class D Hex Fasteners, Gr 660 Lock Fasteners, SS ASTM A453 Self Locking Fasteners, ASTM A453 Grade 660 Class D Fasteners Stockist in Dubai, UAE.
ASTM A 453 GR 660 Class D Fasteners Uses
ASTM A453 Grade 660 Class D fasteners are widely used in industries that require exceptional strength, heat resistance, and long-term reliability. These fasteners are ideal for high-temperature and high-pressure environments, making them suitable for power generation systems, turbine assemblies, and heat exchangers. In the oil and gas sector, they are commonly used in refinery equipment, pressure vessels, and flanges exposed to extreme conditions. Their excellent mechanical stability also makes them valuable in petrochemical plants, marine engineering, and aerospace applications. ASTM A453 Gr 660 Class D bolts, nuts, and studs ensure secure, corrosion-resistant connections in the most demanding operations.
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