ASTM A 453 GR 660 Class B Fasteners

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ASTM A 453 GR 660 Class B Fasteners Manufacturer and Supplier in Kolkata, India

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Rinku Fasteners, a trusted manufacturer and supplier in Kolkata, India, provides premium ASTM A 453 GR 660 Class B Fasteners engineered for critical industrial applications. Crafted from high-grade alloy steel and precisely heat-treated, these fasteners deliver exceptional strength, durability, and resistance to high-temperature environments. Designed for demanding conditions, they are widely used in power generation, petrochemical, and heavy industrial plants where reliable performance is essential. With strict quality control and precision manufacturing, ASTM A 453 GR 660 Class B Fasteners ensure secure, long-lasting connections, providing engineers and maintenance teams with confidence and operational safety in high-stress industrial environments.

ASTM A 453 Gr 660 Class B Fasteners in India, ASTM A 453 Serrated Flange B Fasteners in India, ASTM A453 Gr 660 Nylon Lock B Fasteners in Kolkata, ASTM A 453 Gr 660 Class B Custom Fasteners Kolkata, ASTM A 453 Grade 660 Class B Heavy Hex Fasteners in India, ASTM A 453 Gr 660 Class B Fasteners Supplier in Kolkata, India.

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ASTM A 453 GR 660 Class B Fasteners are manufactured from chromium-molybdenum alloy steel, heat-treated to achieve high tensile and yield strength. The alloy contains controlled carbon, chromium, and molybdenum for enhanced hardness, toughness, and resistance to oxidation and wear. These fasteners maintain dimensional stability and mechanical integrity under high-pressure, high-temperature, and cyclic loading conditions. Their combination of strength, ductility, and creep resistance makes them ideal for demanding industrial applications, ensuring secure and reliable performance in critical assemblies where long-term durability is required.

ASTM A 453 GR 660 Class B Fasteners Specifications

Material
Dimensions
Standards
Size
Length

ASTM A453 GR 660 CLASS B Fasteners

ASME B18.2.1, B18.3

ASTM, ASME

M 02 to M 160

3 mm to 200 mm

ASTM A 453 Gr 660 Heavy Hex B Fasteners, Gr 660 Class B Hex Fasteners, Gr 660 Lock B Fasteners, ASTM A453 Self Locking B Fasteners, ASTM A453 Grade 660 Class B Fasteners Stockist in Kolkata, India.

ASTM A 453 GR 660 Class B 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 B 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.

ASTM A 453 GR 660 Class B Fasteners are extensively used in industries that demand secure, high-strength, and temperature-resistant fastening solutions. They are ideal for boilers, pressure vessels, turbines, heat exchangers, high-pressure piping systems, and heavy machinery in power generation, petrochemical, and chemical processing plants. Their mechanical strength and thermal resistance also make them suitable for high-temperature flanged joints and critical structural connections. Trusted for long-term reliability, these fasteners ensure safe and durable operation in demanding industrial environments. Paired with compatible nuts and washers, ASTM A 453 GR 660 Class B Fasteners provide dependable, high-performance fastening for critical applications.

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Types of ASTM A 453 GR 660 Class B Fasteners

ASTM A 453 GR 660 Class B Fasteners
ASTM A453 GR 660 CLASS B Hex Nuts
ASTM A 453 Gr 660 Class B Threaded Rod
ASTM A453 GR 660 CLASS B Lock Nuts
ASTM A 453 Gr 660 Class B Studbolt
ASTM A453 GR 660 Nylon Insert Nuts

At Rinku Fasteners, we ensure that ASTM A 453 GR 660 Class B Fasteners are carefully installed to preserve their quality and integrity. Each packaging is individually inspected and carefully packed in sturdy, corrosion-resistant containers to prevent damage during transit. Our packaging is designed to meet international standards, ensuring safe delivery and easy handling. We offer extensive labeling for quick identification and compliance with regulatory requirements, making our packaging as reliable as our packaging.

ASTM A 453 Grade 660 Class B Heavy Hex Fasteners, ASTM A453 Grade 660 Nuts, ASTM A453 Gr.660 B Fasteners, ASTM A 453 Gr 660 Nylon Insert B Fasteners, ASTM A 453 Coupler B Fasteners in Kolkata, India.

Aerospace Industry
Petrochemical Industry
Defence Industry

ASTM A 453 GR 660 Class B Fasteners Applications

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