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Rinku Fasteners, based in Kolkata, India, stands out as a top manufacturer and supplier of high-performance ASTM A453 GR 660 Class B Nuts, specifically designed for tough high-temperature and high-pressure environments. Renowned for their precision, strength, and reliability, these nuts are crafted using cutting-edge production methods and undergo rigorous quality checks to guarantee exceptional durability and precise dimensions. Rinku Fasteners provides these premium nuts to various industries, including power generation, petrochemicals, aerospace, and refineries, where dependable performance in harsh conditions is crucial. Their dedication to quality and customer satisfaction has made them a trusted name for durable fastening solutions.
ASTM A453 GR 660 Class B Nuts are made from a nickel-chromium-molybdenum-titanium alloy, which gives them remarkable resistance to corrosion, oxidation, and heat. They boast high tensile and yield strength, along with impressive creep and stress-rupture resistance at temperatures reaching up to 700°C. These nuts also demonstrate outstanding hardness, fatigue resistance, and stability under cyclic and high-pressure situations. Their well-balanced alloy composition and robust mechanical properties make them ideal for extreme service environments that demand long-lasting strength and reliability.
Material | Dimensions | Standards | Size | Length |
ASTM A453 GR 660 CLASS B Nuts | ASME B18.2.1, B18.3 | ASTM, ASME | M 02 to M 160 | 3 mm to 200 mm |
|
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 |
| 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 |
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 GR 660 Class B Nuts in a variety of applications where components need to endure high temperatures and significant mechanical stresses. They are frequently used in turbines, boilers, steam processing systems, and heat exchangers in power plants due to their thermal resilience. In petrochemical plants and refineries, these nuts are essential for flanges, valves, and reactors that face corrosive and high-pressure conditions. The aerospace industry also relies on them for critical assemblies, ensuring safety and performance in demanding environments.
At Rinku Fasteners, our ASTM A 453 GR 660 Class B Nuts are meticulously packaged to ensure safe and efficient delivery. Each nut is individually inspected for quality and packed in durable, tamper-evident containers. We offer various packaging options, including bulk cartons and customized kits, tailored to meet your specific needs. Our packaging is designed to protect the nuts from damage during transit and handling, ensuring they arrive in perfect condition for immediate use.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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