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Aria Fasteners, based in Hamilton, New Zealand, stands out as a top-notch manufacturer and supplier of ASTM A453 GR 660 Class B Bolts, specifically designed for critical industrial and high-temperature applications. With a reputation for precision engineering and a commitment to international standards, they ensure comprehensive quality control. Their products cater to various industries, including power generation, petrochemical, oil and gas, and chemical processing. The bolts they offer are known for their exceptional mechanical strength, reliability, and long-lasting performance in tough environments. Thanks to their technical expertise, prompt delivery, and dedication to customer satisfaction, Aria Fasteners has earned a reputation as a trusted global supplier of premium ASTM fasteners.
ASTM A453 GR 660 Class B Bolts are crafted from alloy steel, specifically engineered for high strength and elevated-temperature service. These bolts boast impressive tensile strength, toughness, and outstanding fatigue resistance, making them perfect for critical structural and pressure-containing applications. On a mechanical level, they showcase remarkable hardness, yield strength, and ductility, allowing them to handle heavy loads and thermal stress with ease. The heat treatment process and the inclusion of alloying elements like chromium, molybdenum, and vanadium significantly boost their performance at high temperatures, as well as their resistance to deformation, creep, and stress corrosion cracking. These characteristics make them an excellent choice for power generation and petrochemical applications that demand durable and reliable fasteners.
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 A 453 GR 660 Class B bolts are required at high temperatures and high pressures. Due to their excellent strength and stability, they are widely used in the aerospace, fuel and power industries. These bolts create critical components in gas turbines, reactors and pressure vessels, ensuring reliable performance in extreme conditions. It is also used in construction assemblies for heavy machinery where high tensile strength and high temperature resistance are critical.
You’ll find ASTM A453 GR 660 Class B Bolts commonly used in high-temperature, high-pressure, and heavy-load scenarios. They are typically installed in boilers, pressure vessels, turbines, heat exchangers, flanged joints, and structural assemblies within power plants, petrochemical facilities, and chemical processing plants. Their ability to resist creep, stress, and thermal degradation ensures they perform reliably even in the most challenging environments.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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