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ASTM A453 Grade 660 Class A fasteners are high-performance fastening solutions known for exceptional strength and corrosion resistance. These fasteners are manufactured from alloy steel with high nickel and chromium content to ensure strong mechanical strength and durability under harsh conditions. Designed to meet stringent ASTM standards, ASTM A453 Grade 660 Class A fasteners are used primarily in the oil and gas, petrochemical and aerospace industries. Favoured for reliability, they provide safety and long durability, making them essential for applications requiring high tensile strength and corrosion strength.
| Grade | Stainless Steel ASTM A453 Gr.660 Class A/B/C/D |
| 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 |
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We offer These ASTM A 453 GR 660 Class A Fasteners as per DIN, ISO, JIS or ANSI Standard.
ASTM A 453 GR 660 Class A Fasteners applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries 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 fasteners are generally resistant to galvanic corrosion due to their alloy composition, which includes corrosion-resistant elements like nickel and chromium. However, in environments prone to galvanic corrosion, proper material selection and surface treatments are recommended to minimize risks and ensure prolonged durability. Regular maintenance and adherence to industry standards further enhance their resistance to galvanic corrosion.
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