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Mira Fasteners is a trusted manufacturer and supplier of ASTM A453 Grade 660 Class A Fasteners, based in Kuala Lumpur, Malaysia. They’ve built a solid reputation for delivering precision-engineered components designed for high-temperature and high-stress applications. Serving vital industries like power generation, petrochemicals, and aerospace, Mira Fasteners ensures that their products are made from top-notch materials and cutting-edge processes, guaranteeing excellent mechanical performance and precise dimensions. Known for their consistency and reliability, they adhere to international standards, making them a go-to source for ASTM A453 Gr 660 Class A Fasteners not just in Malaysia, but throughout Southeast Asia.
These fasteners are crafted from an austenitic stainless steel alloy that includes nickel (24–27%), chromium (13–17%), and molybdenum (1.5–2.5%), along with iron and trace elements. This unique blend provides outstanding strength and resistance to oxidation, even at high temperatures. Class A fasteners undergo solution treatment and aging to achieve impressive mechanical properties, boasting a minimum tensile strength of 895 MPa and a yield strength of 585 MPa. They maintain their structural integrity and resist stress rupture and creep at temperatures up to 704°C (1300°F), making them ideal for high-temperature bolting applications where long-term performance is essential.
Material | Dimensions | Standards | Size | Length |
ASTM A453 GR 660 CLASS A 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 often find ASTM A453 Grade 660 Class A Fasteners in thermal power plants, refineries, and chemical processing facilities, where they face extreme heat and mechanical stress. They’re perfect for securing turbine casings, heat exchangers, boilers, and flanged joints. Their strength and oxidation resistance also make them suitable for aerospace engines, high-pressure vessels, and superheated steam systems. These fasteners deliver reliable performance in tough operating conditions, minimizing maintenance needs and ensuring safety over a long service life. Their robust characteristics make them a preferred choice for engineers and plant operators who require dependable solutions.
At Mira Fasteners, our ASTM A 453 GR 660 Class A Fasteners are meticulously packaged to ensure they arrive in optimal condition. Each fastener is individually inspected and packaged in durable, protective materials to prevent damage during transit. Our packaging includes clear labeling and handling instructions to ensure ease of use and compliance with safety standards. We offer various packaging options, including bulk and custom-sized packages, tailored to meet our clients’ specific needs and preferences.
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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