A515 Grade 70 is a high-strength, carbon-silicon steel plate (ASTM A515 Gr 70) designed for welded boilers and pressure vessels in moderate to high-temperature service.
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Specifications |
ASTM A515 |
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Thickness |
8-100mm |
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Width |
1500-3500mm |
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Length |
3000-8000mm |
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Surface |
2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc |
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Finish |
Hot rolled plate (HR), Cold rolled sheet (CR) |
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Form |
Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Strip etc. |
Composition
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Element |
Weight % |
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C |
0.35 |
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Mn |
0.90 |
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P |
0.035 |
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S |
0.04 |
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Si |
0.15-0.30 |
Mechanical Properties
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Properties |
Conditions |
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| T (°C) |
Treatment |
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Density (×1000 kg/m3) |
7.7-8.03 |
25 |
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Poisson's Ratio |
0.27-0.30 |
25 |
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Elastic Modulus (GPa) |
190-210 |
25 |
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Key Applications
Pressure Vessels & Boilers: Its primary use is in fabricating vessels for intermediate to high-temperature service.
Oil & Gas: Essential for storage tanks, processing equipment, and offshore drilling components.
Power Generation: Used in power plants for high-temperature components.
Heat Exchangers & Condensers: Ideal for efficient heat transfer at elevated temperatures.
Chemical & Pharmaceutical: Employed in equipment for specialty chemicals and pharmaceuticals.
Structural Components: Also used in heavy machinery, construction (pylons, truck frames), and industrial chutes.
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What is grade 70 steel equivalent to?
ASTM A516 Grade 70 is a boiler / pressure vessel quality of steel plate for use in low to moderate services. It has improved notch toughness. A516 GD70 steel plate is equivalent to the P355GH and 490B grades.
What is A515 70 material?
A515 covers carbon steel plate for use in pressure vessels at ambient and higher temperature service. The alloy involved for the specification is basically similar to AISI 1330 steel. Used for high strength plate that is fabricated into pressure vessels for intermediate and higher temperature service such as boilers.