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ASTM A453 Grade 660 Class D Bars are premium alloy steel strips recognized for their outstanding strength and resistance to corrosion. Engineered to comply with rigorous ASTM standards, these pads work well in demanding settings, including refineries, power plants, and offshore oil rigs. Their high nickel-chromium content delivers superb mechanical properties and stability under elevated temperatures. ASTM A453 Grade 660 Class D strips offer dependable and long-lasting performance, making them vital for critical applications that demand high tensile strength and endurance against extreme conditions.
Material | Standards | Size | Length |
ASTM A453 GR 660 CLASS D Threaded Bar | 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 piping requirement you have. Featuring modern production facilities strategically positioned across the USA, we maintain an extensive stock of more than 25,000 tons of top-grade materials kept ready in inventory.
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We supply these ASTM A 453 GR 660 Class D Bars in accordance with DIN, ISO, JIS or ANSI Standard.
ASTM A 453 GR 660 Class D Bars find uses that are as varied as the industries they support, led chiefly 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 D bars are typically resistant to galvanic corrosion owing to their elevated nickel and chromium levels, which create protective oxide layers. Nevertheless, in settings where galvanic corrosion is likely, such as marine environments, appropriate material matching and surface treatments should be taken into account to further reduce risks. Routine upkeep and following industry standards can improve their resistance.
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