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Yasin Fasteners is a leading manufacturer and supplier of ASTM A 453 GR 660 Class D nuts in Istanbul, Turkey. Our nuts are engineered for high strength and high temperature handling, ensuring exceptional and reliable performance in harsh environments. Perfect for use in the aerospace, electrical and petrochemical industries, these nuts maintain integrity under extreme conditions. Focusing on quality and consistency, we deliver fruit that meets stringent industry standards for high levels of performance and safety.
Yasin Fasteners, located in Istanbul, Turkey, has established itself as a reliable manufacturer and supplier of top-notch fastening components, including **ASTM A453 Grade 660 Class D Nuts**. These specialized nuts are designed to thrive in high-temperature, high-stress environments where exceptional mechanical strength and long-lasting reliability are crucial. Yasin Fasteners caters to various industries such as power generation, aerospace, petrochemical, and refinery operations, providing precision-engineered fasteners that meet stringent ASTM standards. With a strong commitment to quality, traceability, and timely delivery, Yasin Fasteners has become a go-to partner for demanding industrial applications around the globe.
Material | Dimensions | Standards | Size | Length |
ASTM A453 GR 660 CLASS D 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 Nuts** are crafted from a precipitation-hardened austenitic stainless steel alloy, which includes nickel, chromium, molybdenum, and titanium. Class D boasts the highest tensile strength among the A453 660 classes—often surpassing 150,000 psi—making it ideal for the most challenging high-temperature bolting applications. These nuts exhibit excellent creep resistance and mechanical stability even at temperatures reaching 704°C (1300°F). Moreover, they provide robust resistance to oxidation and thermal fatigue, ensuring their integrity and safety during continuous thermal cycling and extended high-stress conditions.
These nuts find their place in turbine assemblies, pressure vessels, nuclear reactors, heat exchangers, and other critical equipment that requires reliable performance at elevated temperatures. They are typically used alongside Grade 660 bolts in bolted flange connections, steam systems, and high-pressure piping. Thanks to their ability to resist deformation, loosening, and stress relaxation at high temperatures, ASTM A453 Grade 660 Class D Nuts are a trusted choice for engineers and designers in the energy, aerospace, and heavy industrial sectors.
Yasin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Istanbul, Turkey, with over 8 years of experience serving global industries.
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