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Mira Fasteners stands out as a top-notch manufacturer and supplier of ASTM A453 Grade 660 Class B Fasteners, proudly based in Kuala Lumpur, Malaysia. With a focus on high-temperature and high-strength fastening solutions, they cater to essential industries like power generation, petrochemical, aerospace, and heavy engineering. These fasteners are meticulously designed to withstand extreme thermal and mechanical stress, ensuring they deliver long-lasting reliability and safety. With rigorous quality control and adherence to international standards, Mira Fasteners guarantees dependable products and prompt delivery, making them a go-to choice for ASTM A453 Gr 660 Class B Fasteners across Malaysia and the Southeast Asian region.
The ASTM A453 Grade 660 Class B Fasteners are crafted from an austenitic stainless steel alloy, primarily composed of nickel (24–27%), chromium (13–17%), and molybdenum (1.5–2.5%), along with trace amounts of other stabilizing elements. These fasteners undergo solution treatment and precipitation hardening to achieve impressive tensile strength of at least 860 MPa and yield strength of 550 MPa. Built to handle service temperatures up to 704°C (1300°F), they showcase remarkable resistance to oxidation, stress rupture, and creep. Class B is specifically designed for applications that demand exceptional mechanical strength and thermal stability over extended periods, particularly in pressure-retaining systems and turbine assemblies.
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 |
|
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 B Fasteners in high-stress, high-temperature settings where standard fasteners simply can’t cut it. They’re commonly used in steam and gas turbines, pressure vessels, reactors, flanges, and high-temperature piping systems. In power plants, they play a crucial role in securing vital equipment that faces thermal cycling and mechanical loads. The petrochemical sector relies on them in furnaces, heat exchangers, and process systems where both strength and oxidation resistance are critical. Their proven reliability and performance in challenging conditions make them a favored fastening solution in aerospace and oil refining applications.
At Mira 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.
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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