ASME SA573 Grade 65 plates covered by this specification are limited to a maximum thickness of 1.5 in. [40 mm]. ASME SA573 Grade 65 [450] carbon steel sheets are mainly used for service at atmosheri temperatures where improved notch toughness is import.
ASME SA573 specification covers structural quality carbon-manganese-silicon steel plates in three tensile strength ranges intended primarily for service at atmospheric temperatures where improved notch toughness is important.
ASME SA573 Grade 65 carbon steel chemical composition (%)
Element | Grade 65 |
Carbon, ≤1/2" Thick | 0.24 |
Carbon, >1/2"-1 1/2" Thick | 0.26 |
Manganese | 0.85-1.20 |
Phosphorus Max. | 0.03 |
Sulfur Max. | 0.03 |
Silicon | 0.15-0.40 |
ASME SA573 Grade 65 steel tensile requirement
Grade | Yield Strength Mpa min. |
Tensile Strength Mpa |
Elongation min.% in 200mm |
Elongation min.% in 50mm |
SA573 Grade 65 | 240[35] | 450-530 | 20 | 23 |
The tension test specimen shall conform to the tensile requirements including tensile strength, yield point, and elongation.
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