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Pengkumta Fasteners is a leading manufacturer and supplier of ASTM A 453 GR 660 Class D bolts in Bangkok, Thailand. Our bolts are designed for high strength and exceptional resistance to extreme heat and corrosion. Ideal for critical applications in the aerospace, electrical and petrochemical industries, reliable performance and durability under harsh conditions are ensured Because of our commitment to quality and accuracy , we offer bolts that meet the strictest industry standards for the most demanding environments.
Pengkumta Fasteners, a reliable manufacturer and supplier located in Bangkok, Thailand, is all about delivering top-notch ASTM A453 GR 660 Class D Bolts. With state-of-the-art production facilities and a commitment to global standards, this company provides trustworthy fastening solutions for critical industrial needs. Renowned for their precision engineering, durability, and outstanding performance even in extreme conditions, Pengkumta Fasteners serves a variety of industries, including power generation, petrochemicals, aerospace, and marine. Their ASTM A453 GR 660 Class D Bolts are crafted to guarantee safety, strength, and long-lasting performance in high-stress and high-temperature settings.
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 GR 660 Class D Bolts are made from a nickel-based alloy, primarily featuring nickel, chromium, iron, and molybdenum, along with small amounts of titanium and aluminum to boost strength. These bolts are known for their excellent resistance to corrosion and oxidation, as well as remarkable toughness at elevated temperatures. Mechanically, they offer high tensile and yield strength, along with superior creep resistance, making them ideal for prolonged use in challenging conditions. Their microstructure and heat treatment provide long-term stability, exceptional hardness, and durability, ensuring they can be relied upon for high-pressure and high-temperature engineering tasks.
ASTM A453 GR 660 Class D Bolts find their place in various industries that demand strong and dependable fastening solutions under extreme conditions. In power plants, they are crucial for turbine, boiler, and pressure vessel assemblies due to their resistance to creep and stress rupture. The petrochemical sector counts on these bolts for secure connections in reactors, heat exchangers, and high-pressure pipelines. In aerospace, they are utilized in engine components and structural joints where a high strength-to-weight ratio is essential. Additionally, they are also used in marine applications, ensuring safety and reliability in demanding environments.
Pengkumta Fasteners is a leading manufacturer and supplier of high-quality fasteners in Bangkok, Thailand, with over 8 years of experience serving global industries.
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