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ASTM A453 Grade 660 Class A Nutsare hard-wearing fasteners recognized for outstanding durability and resistance to corrosion. Constructed from high nickel-chromium alloy steel, these nuts perform exceptionally well in demanding settings like petrochemical plants, offshore rigs, and power generation facilities. It is engineered to satisfy rigorous ASTM standards and guarantees dependable performance and longevity in vital applications that demand secure fastening. ASTM A453 Grade 660 Class A nuts deliver superb mechanical properties along with corrosion resistance, which makes them indispensable for uses that call for high tensile strength and extended service life under severe operating conditions
Material | Standards | Size | Length |
ASTM A453 GR 660 Class A Bar | DIN975 , ASTM A307 | M6 to M52 & 1/4″ to 2″ | 1000mm to 3000mm & 1feet to 12feet |
| 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 |
|
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 |
At Koasteel, we take pride in being the largest supplier and manufacturer in the New Zealand, delivering innovative solutions for every aspect of your piping requirements. With advanced manufacturing facilities strategically situated across New Zealand, we maintain an extensive inventory of more than 25,000 tons of top-grade materials kept ready in stock.
Reach out to us to receive a fast quote for your requirement.
We supply These ASTM A 453 GR 660 Class A Bars in accordance with DIN, ISO, JIS or ANSI Standard.
ASTM A 453 GR 660 Class A Bars find uses as varied as the industries they support, driven chiefly by the aerospace, railway, construction and automotive industries along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
ASTM A453 Grade 660 Class A barstend to resist galvanic corrosion well thanks to their alloy makeup, which incorporates corrosion-resistant elements such as nickel and chromium. In settings where galvanic corrosion is likely, like marine environments, choosing appropriate materials and applying surface treatments is advised to boost their resistance further and secure lasting durability. Routine upkeep and compliance with industry standards also help preserve their resistance to galvanic corrosion as time goes on.
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