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Mira Fasteners is a reputable manufacturer and supplier of ASTM A453 Grade 660 Class C Nuts, proudly based in Kuala Lumpur, Malaysia. These nuts are specifically designed for high-temperature, high-strength applications across various industries, including power generation, petrochemical, and aerospace. At Mira Fasteners, we take quality seriously, ensuring that every product adheres to stringent international standards for performance and reliability. With a reputation for precision manufacturing, consistent dependability, and prompt delivery, we cater to clients throughout Malaysia and Southeast Asia, providing top-notch ASTM A453 Grade 660 Class C Nuts that are built to withstand demanding environments.
Our ASTM A453 Grade 660 Class C Nuts are crafted from a precipitation-hardened austenitic stainless steel alloy, featuring significant amounts of nickel (24–27%), chromium (13–17%), and molybdenum (1.5–2.5%). These nuts undergo heat treatment to achieve impressive tensile strength, typically around 895 MPa, along with outstanding resistance to oxidation, stress rupture, and creep at elevated temperatures reaching up to 704°C (1300°F). Their mechanical properties and corrosion resistance make them perfect for applications where thermal stability and structural integrity are paramount. These nuts deliver strong performance even in extreme conditions, ensuring durability is never compromised.
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 |
|
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 Grade 660 Class C Nuts commonly used in high-temperature bolted assemblies, such as steam turbines, pressure vessels, heat exchangers, and flanged joints in power plants and petrochemical refineries. Their ability to resist thermal fatigue and oxidation guarantees a long service life, even when faced with continuous high heat and pressure. Additionally, these nuts are essential in the aerospace and chemical processing industries, where secure and reliable fastening is crucial for safety and operational efficiency. Their robust design not only minimizes maintenance needs but also enhances overall system reliability in critical applications.
At Mira 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.
Mira Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kuala lumpur, Malaysia, with over 8 years of experience serving global industries.
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