ASTM A 453 GR 660 Class C Fasteners

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ASTM A 453 GR 660 Class C Fasteners Manufacturer and Supplier in Muscat, OMAN

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Mazin Fasteners is a trusted manufacturer and supplier of ASTM A453 Grade 660 Class C Fasteners, proudly based in Muscat, Oman. We specialize in providing high-performance fastening solutions tailored for demanding industries around the globe. Our focus is on precision manufacturing, rigorous quality assurance, and strict adherence to international standards. With state-of-the-art production facilities and a team of experienced professionals, we create fasteners that excel in elevated-temperature and high-stress environments. Our dedication to material traceability, consistent quality, and timely delivery has established us as a reliable partner for projects in power generation, petrochemicals, aerospace, and heavy engineering.

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ASTM A453 Grade 660 Class C Fasteners are crafted from a unique precipitation-hardened iron–nickel–chromium alloy, which includes carefully controlled amounts of nickel, chromium, molybdenum, and aluminum. This specific alloy composition ensures outstanding strength retention, oxidation resistance, and creep resistance even at high temperatures. These fasteners boast impressive tensile and yield strength, stable hardness, and good ductility when faced with sustained thermal and mechanical loads. Their mechanical properties remain dependable over the long haul, guaranteeing dimensional stability and secure joint integrity in critical applications.

ASTM A 453 GR 660 Class C Fasteners Specifications

Material	Dimensions	Standards	Size	Length
ASTM A453 GR 660 CLASS C Fasteners	ASME B18.2.1, B18.3	ASTM, ASME	M 02 to M 160	3 mm to 200 mm

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ASTM A 453 GR 660 Class C 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 C 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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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.

You’ll find ASTM A453 Grade 660 Class C Fasteners in a variety of applications that demand top-notch performance under high temperature and stress. Common uses include gas and steam turbines, boilers, heat exchangers, pressure vessels, and power generation equipment. They’re also frequently found in petrochemical plants, refineries, aerospace assemblies, and high-temperature industrial machinery. These fasteners are perfect for joints that experience thermal cycling, vibration, and continuous heavy loads, ensuring reliability and durability in even the toughest conditions.