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MUKAU FASTENERS, based in Kinshasa, Congo, is a reliable manufacturer and supplier of ASTM A 453 GR 660 Class B Fasteners, specifically designed for high-strength industrial applications. These fasteners are crafted to meet rigorous ASTM standards, ensuring they deliver outstanding reliability, precise dimensions, and excellent mechanical performance. Built to thrive in tough environments, they boast remarkable resistance to high temperatures, pressure, and wear. MUKAU FASTENERS’ Class B fasteners are widely used in industries like petrochemical, power generation, and heavy engineering, providing secure and durable fastening solutions that uphold structural integrity and operational safety even in critical conditions.
ASTM A 453 GR 660 Class B Fasteners are constructed from premium alloy steel, with carefully measured amounts of chromium, molybdenum, and carbon. They undergo specialized heat treatment to achieve impressive tensile strength, typically around 950 MPa, along with excellent toughness and hardness. These fasteners are designed to resist fatigue, wear, and deformation at high temperatures, ensuring dependable performance in crucial industrial applications where mechanical stability is a must.
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.
You’ll find these fasteners commonly used in pressure vessels, boilers, heat exchangers, and industrial piping systems across the petrochemical, oil and gas, and power sectors. They’re also perfect for heavy machinery, structural assemblies, and high-temperature settings. With their exceptional strength, durability, and resistance to corrosion, they’re the go-to choice for applications that require secure and long-lasting fastening solutions, ensuring both operational efficiency and safety.
At Mukau 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.
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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