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Hazlewood Fasteners, located in Canberra, Australia, has built a solid reputation as a manufacturer and supplier of ASTM A453 Grade 660 Class B Fasteners. These fasteners are celebrated for their remarkable strength and outstanding performance in high-temperature environments. Designed with precision and durability in mind, they find their place in industries that require reliability even under extreme stress and heat. Hazlewood Fasteners is committed to crafting each product to meet international quality standards, utilizing advanced manufacturing techniques and thorough testing. With excellent resistance to corrosion, oxidation, and creep, ASTM A453 Gr 660 Class B Fasteners are a trusted choice for clients in the power generation, petrochemical, and aerospace sectors.
ASTM A453 Grade 660 Class B Fasteners are crafted from a nickel-chromium-iron alloy, enhanced with molybdenum, titanium, and aluminum to boost their mechanical performance. The typical chemical makeup includes Nickel (42–46%), Chromium (13–17%), Iron (the balance), and Molybdenum (1–1.5%). These fasteners boast an impressive tensile strength of around 760 MPa and a yield strength of about 550 MPa. They also demonstrate excellent ductility, oxidation resistance, and creep strength at elevated temperatures, ensuring they maintain structural integrity and long-term reliability in high-stress, high-temperature conditions.
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 A453 Gr 660 Class B Fasteners are widely utilized in industries that operate under high pressure and temperature. They are perfect for applications in power plants, refineries, petrochemical facilities, and aerospace systems. Common applications include turbines, pressure vessels, heat exchangers, and boiler assemblies, where consistent strength and corrosion resistance are crucial. Their outstanding resistance to oxidation and thermal fatigue makes them suitable for both oxidizing and reducing environments. Hazlewood Fasteners offers these fasteners in a range of dimensions and specifications to meet the strict requirements of various industries.
At Hazlewood Fasteners, we ensure that ASTM A 453 GR 660 Class B Fasteners are carefully installed to preserve their quality and integrity. Each packaging is individually inspected and carefully packed in sturdy, corrosion-resistant containers to prevent damage during transit. Our packaging is designed to meet international standards, ensuring safe delivery and easy handling. We offer extensive labeling for quick identification and compliance with regulatory requirements, making our packaging as reliable as our packaging.
Hazlewood Fasteners is a leading manufacturer and supplier of high-quality fasteners in Canberra, Australia, with over 8 years of experience serving global industries.
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