Home > Other Material > ASTM A 453 GR 660 Class A Bolts
ASTM A453 Grade 660 Class A Bolts are top-grade fasteners known for outstanding strength and resistance to corrosion. Constructed from alloy steel with a high nickel-chromium content, these bolts perform superbly in demanding settings like petrochemical plants, offshore installations and power generation facilities. By complying with rigorous ASTM standards, they guarantee reliability and durability in vital applications where safety Bonding is needed. ASTM A453 Grade 660 Class A bolts deliver mechanical strength and resistance to corrosion, making them indispensable for uses that demand high tensile strength and extended service life under severe operating conditions
|
Material |
Standards |
Size
|
Length |
|
ASTM A453 GR 660 Class A Hex Bolts
|
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. With cutting-edge manufacturing facilities strategically positioned across the USA, we maintain an extensive stock of more than 25,000 tons of top-grade materials kept ready and in stock.
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We supply these ASTM A 453 GR 660 Class A Bolts conforming to DIN, ISO, JIS or ANSI Standard.
ASTM A 453 GR 660 Class A Bolts find uses as varied as the industries they cater to, led 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 bolts typically show resistance to galvanic corrosion because of their alloy makeup, which contains corrosion-resistant components such as nickel and chromium. These components create protective oxide layers that reduce galvanic reactions when they come into contact with dissimilar metals. That said, in settings where galvanic corrosion is likely, like marine environments, it’s recommended to use appropriate material selection and surface treatments to further boost their resistance and guarantee extended durability. Consistent maintenance and following industry standards also help preserve their resistance to galvanic corrosion over time.
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