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The Fasteners Mart, Mumbai, India, is a prominent manufacturer and exporter of high-quality industrial fasteners, dedicated to providing high-quality products that are at par with international standards. One of their specialty products is ASTM A453 Grade 660 Class B Bolts, which are produced from high-strength austenitic stainless steel alloy intended for application in high-temperature and high-pressure conditions. They come in different forms like hex bolts, heavy hex bolts, and stud bolts. Due to their high mechanical strength and resistance to oxidation, they are suitable for challenging industrial conditions such as power plants and the aerospace industry.
ASTM A453 GR 660 Class B Bolts consist of Nickel (24–27%), Chromium (13–17%), Molybdenum (1–1.5%), and minor additions of Titanium, Aluminum, and Iron. These bolts possess a tensile strength of around 860 MPa and a yield strength of about 550 MPa, with elongation by 16%. These bolts retain their structural properties at temperatures up to 704°C and possess a density of about 7.9 g/cm³. These physical and mechanical properties guarantee that the bolts can hold up against corrosive atmospheres, thermal cycling, and high stress without impacting performance.
Material | Dimensions | Standards | Size | Length |
ASTM A453 GR 660 CLASS B 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 B Bolts find extensive application in industry where there is a need for high-temperature as well as pressure resistance, for example, aerospace, thermal power plants, petrochemical plants, and gas turbines. They are most suitable for bolting equipment in pressure vessels, exhaust systems, steam turbines, and heat exchangers. Since they maintain their strength and resist oxidation when subject to thermal stress, they are most critical in application. These bolts offer lasting dependability and are typically utilized in safety-critical applications where failure is not a viable alternative, providing safe and stable operation.
Fasteners Mart provides prompt, safe, and efficient shipment of ASTM A453 GR 660 Class B Bolts to any destination around the globe. Every product is packed with caution using sturdy materials such as wooden crates, bubble wrap, and corrugated boxes to ensure it reaches without any damage. Specialized packaging can also be provided as per client specifications.
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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