ASTM A 453 GR 660 Class A Fasteners Manufacturer and Supplier in Dubai, UAE
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Majid Fasteners is a leading manufacturer and supplier of high-quality ASTM A453 Grade 660 Class A fasteners in Dubai, UAE, serving diverse industrial sectors with precision-engineered solutions. Known for exceptional strength, durability, and resistance to high-temperature environments, our Grade 660 fasteners are widely used in power generation, petrochemical, and heavy engineering applications. With advanced manufacturing facilities, strict quality control, and a commitment to international standards, Majid Fasteners ensures reliable performance and timely delivery for every project. Our goal is to provide customers with premium fastening products that meet demanding operational requirements across the UAE and global markets.
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What is ASTM A 453 GR 660 Class A Fasteners?
ASTM A453 Grade 660 Class A fasteners are engineered using a high-alloy austenitic stainless steel composition containing nickel, chromium, titanium, and molybdenum for exceptional strength and heat resistance. This alloy blend provides superior corrosion resistance and stability in elevated temperatures. Mechanically, these fasteners offer high tensile strength, excellent yield properties, and reliable stress-rupture performance, making them ideal for demanding applications. Their robust mechanical profile ensures long-term durability in power plants, petrochemical units, and high-pressure systems, delivering dependable performance in critical industrial environments.
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ASTM A 453 GR 660 Class A Fasteners Specifications
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 |
ASTM A 453 GR 660 Class A 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 A 453 GR 660 Class A Fasteners Mechanical Properties
| 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 Uses
ASTM A453 Grade 660 Class A 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 a preferred choice in power generation plants, boilers, turbines, and heat exchangers. They are also extensively used in petrochemical refineries, offshore platforms, and gas processing units where resistance to corrosion and thermal stress is essential. Additionally, their durability makes them suitable for heavy engineering, valve manufacturing, and pressure vessel assemblies, ensuring safe and efficient performance in critical industrial operations.
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