Home > ASTM A 453 GR 660 Class D Bolts
Request For Our Latest Prices On ASTM A 453 GR 660 Class D Bolts in Tunis, Tunisia!
Lina Fasteners is a well-respected manufacturer and supplier based in Tunis, Tunisia, specializing in high-performance ASTM A453 Grade 660 Class D Bolts designed for the toughest service conditions. The company has built a solid reputation for its precision manufacturing, rigorous quality control, and commitment to international standards. Lina Fasteners provides Class D bolts that are engineered to endure extreme temperatures, heavy loads, and harsh operating environments. With a strong emphasis on reliability, durability, and prompt delivery, the company plays a vital role in supporting critical industries that require robust, heat-resistant, and long-lasting fastening solutions.
The ASTM A453 Grade 660 Class D bolts are crafted from a precipitation-hardening iron-nickel-chromium alloy, which contains about 24–27% nickel and 13–16% chromium, along with additions of molybdenum, titanium, aluminum, and carefully controlled carbon. This unique composition results in exceptionally high tensile and yield strength, outstanding creep and stress-rupture resistance, and good toughness. Mechanically, Class D bolts retain their strength and oxidation resistance even at elevated temperatures, ensuring consistent performance under prolonged thermal exposure and significant mechanical stress.
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.
These ASTM A453 GR 660 Class D Bolts are commonly utilized in applications that involve extreme temperatures and heavy mechanical loading. You’ll find them in gas and steam turbines, boilers, heat exchangers, pressure vessels, and power generation equipment. They’re also essential in petrochemical plants, refineries, and chemical processing units where resistance to oxidation, scaling, and thermal fatigue is crucial. These bolts guarantee secure joint integrity, operational safety, and long-term reliability in demanding industrial environments.
At Lina Fasteners, we prioritize the safety and quality of our ASTM A 453 GR 660 Class D bolts during shipping. Each bolt is thoroughly inspected and individually tightened to prevent damage. We pack them in hard labeled boxes that clearly show product details and quantities. These meticulous packaging ensures that our bolts remain in pristine condition, ready to meet the demanding demands of high temperatures and high pressures upon arrival the solution of the.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
©2024 Lina Fasteners All Rights Reserved.
