ASTM A 453 GR 660 Class C Nuts

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ASTM A 453 GR 660 Class C Nuts Manufacturer and Supplier in Houston , USA

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Houston, USA-based Brian Fasteners is a leading producer and exporter of high-performance fasteners with expertise in ASTM A 453 GR 660 Class C Nuts. With a reputation for offering precision-engineered fastening products, Brian Fasteners caters to a broad spectrum of industries like power generation, petrochemical, and aerospace. Prioritizing quality, long lifespan, and adherence to international standards, the company verifies every product against demanding specifications. Supported by state-of-the-art manufacturing facility and expertise, Brian Fasteners is a name of value for customers looking for quality and corrosion-proof fasteners that deliver in harsh temperature and pressure conditions.

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ASTM A 453 GR 660 Class C Nuts are manufactured from an austenitic stainless steel alloy that contains mostly nickel (24-27%), chromium (13-17%), molybdenum (1-1.5%), and iron, with traces of elements such as titanium and aluminum. These nuts are precipitation-hardened and solution-treated for strength. They have excellent mechanical properties, with minimum tensile strength of 125 ksi and room temperature yield strength of 105 ksi. They are intended for service at high temperature and retain strength up to 1200°F (649°C) and are perfect for harsh industrial applications.

ASTM A 453 GR 660 Class C Nuts Specifications

Material	Dimensions	Standards	Size	Length
ASTM A453 GR 660 CLASS C Nuts	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 Nuts 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 Nuts 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 C Nuts are popular for high-pressure and high-temperature applications because of their superior mechanical strength and resistance to corrosion. They are integral parts in heat exchangers, pressure vessels, nuclear reactors, and steam turbines. They are used by power generation, oil and gas, aerospace, and petrochemicals industries for critical bolting requirements. Their thermal cycling and stress resistance make them appropriate for flange connections, valves, and heavy-duty machinery in harsh environments. Their reliability and long lifespan make them a key factor in the safety and efficiency of complex mechanical systems and infrastructures.

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Types of ASTM A 453 GR 660 Class C Nuts

At Brian Fasteners, ASTM A 453 GR 660 Class C Nuts are meticulously packaged to ensure their integrity and quality upon delivery. Each batch of nuts is securely packed in durable, protective materials to prevent damage during transit. Our packaging process includes clear labeling for easy identification and compliance with industry standards. We take pride in our commitment to delivering these critical components in perfect condition, ready for use in demanding applications across various industries.