Home > Other Material > ASTM A 453 GR 660 Class B Bolts
ASTM A453 Grade 660 Class B bolts are top-grade fasteners recognized for their outstanding strength and resistance to corrosion. Crafted from a high-performance alloy that includes nickel and chromium, these bolts are built to perform in tough settings like petrochemical plants, offshore platforms, and power generation facilities. Conforming to rigorous ASTM standards, they deliver dependable and long-wearing performance in vital applications where secure fastening is crucial. ASTM A453 Grade 660 Class B bolts provide excellent mechanical properties and stability under high temperatures, making them essential for projects that demand high tensile strength and enduring durability in severe conditions.
|
Material |
Standards |
Size
|
Length |
|
ASTM A453 GR 660 CLASS B 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. Featuring modern production facilities strategically situated across the USA, we maintain an extensive stock of more than 25,000 tons of top-grade materials kept ready and available on hand.
Reach out to us for a fast quote tailored to your requirement.
We supply these ASTM A 453 GR 660 Class B Bolts in accordance with DIN, ISO, JIS or ANSI Standard.
ASTM A 453 GR 660 Class B Bolts have applications as varied as the industries they cater to, led 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 B bolts typically hold up well against galvanic corrosion thanks to their alloy makeup, which contains corrosion-resistant components such as nickel and chromium. That said, in settings where galvanic corrosion is likely, like marine environments, it’s wise to apply appropriate material pairing and surface treatments to boost their resistance even more and secure lasting durability. Routine upkeep and following industry standards also work to preserve their resistance as time goes on.
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