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MUKAU FASTENERS, a reputable manufacturer and supplier located in Kinshasa, Congo, specializes in top-notch ASTM A453 Grade 660 Class D Stud Bolts designed for high-temperature and high-stress environments. Crafted from precipitation-hardened austenitic stainless steel, these stud bolts boast exceptional strength, oxidation resistance, and a long lifespan. MUKAU FASTENERS adheres to strict quality control and precision machining standards to ensure their products meet global benchmarks. Their ASTM A453 GR 660 Class D Stud Bolts are widely utilized in the power generation, petrochemical, and aerospace sectors, known for their reliability and consistent performance even in extreme conditions.
ASTM A453 GR 660 Class D Stud Bolts are made up of iron, nickel (24–27%), chromium (13–16%), titanium, and molybdenum, which together provide outstanding resistance to heat and oxidation. They deliver a minimum tensile strength of 965 MPa and a yield strength of about 755 MPa, ensuring remarkable toughness and ductility. These stud bolts retain their strength even at elevated temperatures of up to 700°C, offering excellent creep resistance and corrosion protection, making them perfect for high-pressure and thermal applications.
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 GR 660 Class D Stud Bolts find extensive use in gas turbines, steam turbines, pressure vessels, and high-temperature reactors. They are particularly well-suited for power plants, petrochemical processing units, and aerospace assemblies where thermal stability and strength retention are essential. Their capability to endure extreme temperature variations and corrosive environments makes them a go-to choice for bolting in flanged connections, turbine casings, and heat exchangers. These attributes make ASTM A453 GR 660 Class D Stud Bolts a reliable option for demanding mechanical and structural applications.
At Mukau 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.
Mukau Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kinshasa, Congo, with over 8 years of experience serving global industries.
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