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ASTM A453 Grade 660 Class A Nuts are sturdy 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 comply with rigorous ASTM standards and delivers dependable performance and durability in critical applications that demand secure fastening. ASTM A453 Grade 660 Class A nuts offer superb mechanical properties and corrosion resistance, making them indispensable for applications 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 Sumakhsteel, we are proud to be the largest supplier and manufacturer in the USA, delivering advanced solutions for every one of your piping requirements. Backed by modern production facilities strategically situated across the USA, we maintain an extensive inventory of more than 25,000 tons of top-grade materials kept ready in stock.
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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 have applications as varied as the industries they serve, driven mainly 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 bars are typically resistant to galvanic corrosion owing to their alloy makeup, which incorporates corrosion-resistant elements such as nickel and chromium. In environments prone to galvanic corrosion, such as marine settings, appropriate material selection and surface treatments are advised to further boost their resistance and secure lasting durability. Routine maintenance and compliance with industry standards likewise help preserve their resistance to galvanic corrosion over time.
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