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Ramu Fasteners stands out as a top-notch manufacturer and supplier based in Hyderabad, specializing in precision-engineered ASTM A453 GR 660 Class B Fasteners that excel in high-temperature settings. Thanks to our state-of-the-art manufacturing facilities and rigorous quality assurance measures, we ensure that our fasteners not only meet international standards but also align perfectly with our customers’ needs. We cater to vital industries such as petrochemical, power generation, oil & gas, and heavy engineering, providing products renowned for their strength, durability, and reliable performance in tough conditions. With competitive pricing, quick delivery, and outstanding technical support, Ramu Fasteners has become a go-to source for ASTM A453 GR 660 Class B bolting solutions.
ASTM A453 GR 660 Class B Fasteners are crafted from UNS S66286 precipitation-hardening stainless steel (Alloy A286), which boasts impressive levels of nickel (24–27%), chromium (13.5–16%), molybdenum (1.0–1.5%), and titanium (1.9–2.35%) to ensure exceptional strength at elevated temperatures and resistance to corrosion. These Class B fasteners undergo a process of solution annealing and age hardening, resulting in robust mechanical properties. They typically showcase a minimum tensile strength of around 130 ksi (895 MPa) and a yield strength of about 85 ksi (585 MPa), along with good elongation and area reduction, ensuring reliable performance in high-stress applications.
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.
ASTM A 453 GR 660 Class B fasteners are widely used in high-temperature and high-stress environments. They are ideal for applications in power generation, aerospace, and petrochemical industries, where they secure components subjected to extreme conditions. These fasteners are essential in securing turbine components, exhaust systems, and pressure vessels, providing reliable performance in challenging environments. Their durability and resistance to oxidation make them suitable for critical applications requiring long-term stability and strength.
ASTM A453 GR 660 Class B Fasteners find their place in various applications where high strength, heat resistance, and corrosion performance are crucial. These fasteners are perfect for pressure vessels, heat exchangers, flanges, valve assemblies, and high-temperature piping systems across industries like petrochemical, power generation, chemical processing, and oil & gas. Their unique alloy composition guarantees dependable performance in demanding environments.
Ramu Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hyderabad, India, with over 8 years of experience serving global industries.
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