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At Rinku Fasteners, we are dedicated to delivering high-performance fastening solutions that meet the rigorous demands of modern industries. As a trusted manufacturer and supplier in Kolkata, India, we offer premium ASTM A453 GR 660 Class C Fasteners, engineered for exceptional strength, thermal stability, and corrosion resistance. Designed for high-temperature and high-pressure environments, these nickel-based alloy fasteners provide unmatched reliability in critical applications. Our commitment to precision, quality assurance, and customer satisfaction ensures consistent performance and long service life, helping industries operate with enhanced safety and efficiency in even the toughest conditions.
ASTM A453 GR 660 Class C Fasteners are manufactured from a high-strength, age-hardened nickel-chromium alloy containing elements such as titanium, molybdenum, and manganese. This composition enables exceptional tensile and yield strength, even at elevated temperatures. Class C fasteners deliver improved hardness, excellent stress rupture resistance, and long-term dimensional stability. They maintain mechanical integrity under thermal cycling and extreme pressure, offering dependable resistance to oxidation and creep. These properties make them ideal for environments requiring durable, high-temperature fastening solutions.
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 |
|
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.
ASTM A453 GR 660 Class C Fasteners are widely used in industries where high temperature, extreme pressure, and superior strength are essential. Power generation plants rely on them for turbines, boilers, and steam systems. In petrochemical and refinery operations, they are used in high-temperature piping systems, reactors, and pressure vessels. Aerospace and defense sectors utilize them for components exposed to heat and mechanical stress. These fasteners are also common in gas processing units, nuclear plants, and heavy industrial machinery. Their ability to retain performance under severe thermal and mechanical loads makes them crucial in safety-critical applications.
Rinku fasteners contain ASTM A 453 GR 660 Class C fasteners carefully installed to ensure authenticity during transportation and storage. Each binder is individually inspected and securely wrapped with protective coatings to prevent corrosion. They are then packed in sturdy labeled boxes designed to withstand rigorous handling and the environment. This careful packaging assures that our high quality fasteners reach you in optimal condition, ready for immediate use in demanding applications.
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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