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Lina Fasteners is a reputable manufacturer and supplier based in Tunis, Tunisia, specializing in high-performance ASTM A453 Grade 660 Class C Bolts that are perfect for demanding industrial applications. The company has built a solid reputation for its precision manufacturing, rigorous quality control, and adherence to international standards. The bolts provided by Lina Fasteners are known for their exceptional strength, precise dimensions, and reliability, even in the toughest operating conditions. Specifically designed to withstand high temperatures and intense stress, the ASTM A453 GR 660 Class C bolts from Lina Fasteners guarantee long-lasting performance, safety, and durability for critical assemblies across a variety of industrial sectors.
These bolts are crafted from a precipitation-hardening iron-nickel-chromium alloy, which contains about 24–27% nickel and 13–16% chromium, along with added molybdenum, titanium, aluminum, and carefully controlled carbon. This unique composition results in outstanding mechanical properties, such as very high tensile and yield strength, excellent resistance to creep and stress-rupture, and good toughness. The Class C heat treatment further enhances stability, allowing the bolts to maintain their strength and oxidation resistance even at elevated temperatures and under prolonged mechanical stress.
Material | Dimensions | Standards | Size | Length |
ASTM A453 GR 660 CLASS C 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 C Bolts are commonly utilized in high-temperature applications and situations involving significant mechanical stress. You’ll find them in gas and steam turbines, boilers, heat exchangers, power generation equipment, and high-temperature piping systems. They’re also essential in petrochemical plants, refineries, and chemical processing units, where resistance to oxidation, scaling, and thermal fatigue is crucial. These bolts provide secure fastening, a long service life, and dependable performance in critical environments.
At Lina Fasteners, we ensure that our ASTM A 453 GR 660 Class C bolts are packaged with the utmost care to preserve their quality during transportation. Each bolt is meticulously inspected and packaged in sturdy, protective containers to prevent damage. Our packaging solutions include tamper-evident seals and clearly labeled boxes to ensure easy identification and handling. Whether in bulk or customized quantities, our packaging guarantees that the bolts reach you in pristine condition, ready for your high-demand applications.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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