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Hazlewood Fasteners, a reliable manufacturer and supplier based in Canberra, Australia, specializes in top-notch ASTM A453 Grade 660 Class D Stud Bolts, perfect for high-temperature and high-stress settings. Crafted from austenitic stainless steel, these bolts feature a unique blend of nickel, chromium, and titanium, delivering outstanding tensile strength, oxidation resistance, and creep strength. Designed for use in turbines, power plants, and the petrochemical sector, these stud bolts are built to perform under thermal stress. Hazlewood Fasteners guarantees precise threading, effective heat treatment, and strict adherence to ASTM standards, ensuring dependable performance and longevity in tough industrial environments.
ASTM A453 GR 660 Class D Stud Bolts are composed of Nickel (24–27%), Chromium (13–16%), Titanium (1.9–2.35%), Manganese (≤2%), Silicon (≤1%), Carbon (≤0.10%), Phosphorus (≤0.04%), and Sulfur (≤0.03%), with Iron making up the rest. These bolts boast a minimum tensile strength of 895 MPa and a yield strength of 585 MPa, while also providing excellent oxidation and creep resistance at temperatures up to 700°C. The inclusion of titanium helps stabilize the alloy against carbide precipitation, ensuring long-lasting strength, durability, and dimensional stability during the intense heating and cooling cycles found in harsh industrial conditions.
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 Grade 660 Class D Stud Bolts are widely utilized in gas turbines, steam turbines, heat exchangers, pressure vessels, and nuclear reactors, where the demands of extreme temperatures and pressures call for reliable fasteners. Thanks to their exceptional mechanical strength and thermal stability, they’re perfect for applications in aerospace, chemical processing, and power generation. In oil refineries and marine settings, these stud bolts stand up to oxidation, corrosion, and stress rupture, ensuring that bolted joints remain secure in critical assemblies. Built to handle continuous thermal cycling, A453 GR 660 Class D Stud Bolts offer unmatched reliability, safety, and durability in high-performance bolting applications across various industries worldwide.
At Hazlewood Fasteners, our ASTM A 453 GR 660 Class D stud bolts are carefully installed to ensure authenticity and quality. Each stud bolt is individually inspected and clamped to prevent corrosion. They are neatly packaged in hard labeled boxes that provide important production information and quantities. Our packaging system protects fasteners during transit, ensuring they arrive in excellent condition, ready to be used in high-stress and high temperature applications.
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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