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The Fasteners Mart, established in Mumbai, India, is a leading manufacturer and exporter of high-grade industrial fasteners to various industries across the globe. Among its notable products is ASTM A453 Grade 660 Class D Stud Bolts, designed for use in high-temperature and high-pressure conditions. The stud bolts are produced using austenitic stainless steel, which is specially designed for high strength and resistance to oxidation. Offered in a range of shapes including full-thread, tap-end, and double-end, these bolts offer improved performance in challenging conditions, particularly in power generation, petrochemical, and aerospace applications.
ASTM A453 GR 660 Class D Stud Bolts consist mainly of Iron, along with substantial amounts of Nickel (24–27%), Chromium (13–17%), Molybdenum (1–1.5%), and trace levels of Titanium and Aluminum. These studs have remarkable mechanical characteristics, with a tensile strength of at least 895 MPa, yield strength of 585 MPa, and elongation of 15%. Their physical characteristics include a density of about 7.9 g/cm³ and superior oxidation resistance up to temperatures of 704°C. Such characteristics render them suitable for applications involving high-temperature, high-stress bolting.
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.
ASTM A453 GR 660 Class D Stud Bolts find broad applications in the power generation plants, gas turbines, aerospace industry, heat exchangers, and petrochemical processing plants. Due to their high strength and thermal resistance, they find application in bolting at elevated temperatures in boilers, pressure vessels, turbines, and flanges. These studs are made such that they withstand extreme thermal cycling, pressure, and mechanical load. Their resistance to corrosion and oxidation also positions them for use in applications of high importance in offshore and hostile industrial conditions.
The Fasteners Mart provides safe and timely delivery of ASTM A453 GR 660 Class D Stud Bolts to national and international locations. Bolts are packed securely with the help of wooden crates, bubble wrap, and corrugated boxes to prevent damage during shipping. Custom packaging can also be provided as per request to suit specific project requirements.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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