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ASTM A453 Grade 660 Class B fasteners are durable and durable solutions known for their excellent durability and corrosion resistance. Made of alloy steel and containing nickel and chromium, these fasteners excel in harsh environments such as offshore rigs, petrochemical plants, and power generation facilities. It is designed to meet stringent ASTM standards and ensures reliable performance and durability in critical applications requiring secure packaging. ASTM A453 Grade 660 Class B fasteners provide reliable mechanical properties and corrosion resistance, making them essential for applications requiring high tensile strength and flexibility in 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 |
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We offer These ASTM A 453 GR 660 Class B Fasteners as per DIN, ISO, JIS or ANSI Standard.
ASTM A 453 GR 660 Class B 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 B fasteners generally exhibit good resistance to galvanic corrosion due to their alloy composition, which includes corrosion-resistant elements like nickel and chromium. These elements form protective oxide layers that mitigate galvanic reactions when in contact with dissimilar metals. However, in environments prone to galvanic corrosion, such as marine settings, it’s advisable to apply proper material selection and surface treatments to further enhance their resistance and ensure long-term durability. Regular maintenance and adherence to industry guidelines also contribute to maintaining their resistance to galvanic corrosion over time.
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