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Mira Fasteners is a well-respected manufacturer and supplier of ASTM A453 Grade 660 Class D Stud Bolts, based in Kuala Lumpur, Malaysia. They’ve built a solid reputation for providing high-performance fastening solutions, particularly for products designed to withstand extreme temperatures and pressures. These stud bolts find their place in critical industries like power generation, petrochemicals, and aerospace, where reliability over the long haul is a must. Each stud bolt is crafted under rigorous quality control measures and adheres to international standards, ensuring they are durable, precise, and capable of high-strength performance. As a result, Mira Fasteners has become a go-to supplier throughout Malaysia and Southeast Asia for demanding industrial bolting applications.
The ASTM A453 Grade 660 Class D Stud Bolts are made from a special austenitic stainless steel alloy that includes nickel (24–27%), chromium (13–17%), molybdenum (1.5–2.5%), and iron, along with some minor elements to enhance heat resistance. These bolts undergo solution treatment and age hardening to achieve outstanding mechanical properties, boasting a minimum tensile strength of 895 MPa and a yield strength of 585 MPa. The Class D designation provides improved stress rupture and creep resistance at high temperatures, reaching up to 704°C (1300°F), making them perfect for extended high-temperature applications. The stud design guarantees robust, secure connections in systems that retain pressure and experience thermal cycling.
Material | Dimensions | Standards | Size | Length |
ASTM A453 GR 660 CLASS D Stud Bolts | 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 D Stud Bolts widely used in high-temperature settings like steam turbines, boilers, heat exchangers, and reactor systems. In the oil, gas, and petrochemical sectors, they play a crucial role in securing flanges, pressure vessels, and valve assemblies that face constant thermal and mechanical stress. Their remarkable resistance to oxidation, creep, and stress rupture ensures a long service life, significantly lowering the chances of fastener failure in mission-critical systems. These stud bolts are also essential in aerospace, refining, and industrial processing facilities, where both high strength and thermal stability are paramount.
At Mira Fasteners, our ASTM A 453 GR 660 Class D stud bolts are carefully installed to ensure authenticity and quality. Each stud bolt is individually inspected and clamped to prevent corrosion. They are neatly packaged in hard labeled boxes that provide important production information and quantities. Our packaging system protects fasteners during transit, ensuring they arrive in excellent condition, ready to be used in high-stress and high temperature applications.
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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