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ASTM A453 Grade 660 Class B fasteners durable and long-lasting solutions recognized for their outstanding durability and resistance to corrosion. Constructed from alloy steel and incorporating nickel and chromium, these fasteners perform exceptionally in demanding environments like offshore rigs, petrochemical plants, 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 packaging. ASTM A453 Grade 660 Class B fasteners offer dependable mechanical properties and corrosion resistance, making them indispensable for applications that call for high tensile strength and flexibility under harsh operating conditions
| Grade | Stainless Steel ASTM A453 Gr.660 Class B |
| Specifications | ASTM A453, DIN 933, DIN 931, ANSI, JIS standards and all International Standards |
| Length | 3mm to 200mm |
| Size | M 02 to M 160, Custom Sizes |
| Form | Nuts, Bolts, Washers, Screw |
| Types | Bolts, Nuts, Washers, Anchor Fasteners, Stud Bolts, Eye Bolt, Stud, Threaded Rod, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners etc |
| 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 piping requirement. With modern manufacturing facilities well-positioned across the USA, we maintain an extensive stock of more than 25,000 tons of top-grade materials on hand and ready to ship.
Reach out to us for a fast quote tailored to your requirement.
We supply these ASTM A 453 GR 660 Class B Fasteners in accordance with DIN, ISO, JIS or ANSI Standard.
ASTM A 453 GR 660 Class B Fasteners find uses as varied as the industries they support, led mainly by the aerospace, railway, construction and automotive sectors, 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 fasteners typically show strong resistance to galvanic corrosion thanks to their alloy makeup, which contains corrosion-resistant elements such as nickel and chromium. These elements create protective oxide layers that reduce galvanic reactions when the fasteners meet dissimilar metals. That said, in settings where galvanic corrosion is likely, like marine environments, it’s wise to use appropriate material selection and surface treatments to boost their resistance even more and secure long-term durability. Routine maintenance and following industry guidelines also help preserve their resistance to galvanic corrosion as time goes on.
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