ASME SA633 Grade A material is a high strength low alloy steel plate and sheet. ASME SA633 Grade A low alloy steel plate is normally delivered in normalized condition. The steel provides a minimum yield point of 42 ksi[290 MPa] in thickness up to 4 inch [100mm] and inclusive.
ASME SA633 Grade A steel chemical composition (%)
| Material | C max. | Mn | P max. | S max. | Si | Nb max. |
| SA633 Gr.A | 0.18 | 1.00-1.35 | 0.03 | 0.03 | 0.15-0.50 | 0.05 |
ASME SA633 Grade A steel tensile requirement
| Mechanical properties | Grade A |
| Tensile strength, kis [MPa] | - |
| thick ≤ 65mm | 63-83[430-570] |
| 65mm <thick ≤ 100mm | 63-83[430-570] |
| Yield strength, min, kis [MPa] | - |
| thick ≤ 100mm | 42[290] |
| Elongation in 8 in. [200 mm], min, % | 18 |
| Elongation in 2 in. [50 mm], min, % | 23 |
ASME SA633 Grade A low alloy steel is particularly suited for at low ambient temperature of -50℉[-45℃] and higher where notch toughness better than that expected in as-rolled material of a comparable strength level is desired. As a carbon steel and low alloy steel manufacturer in China, we can supply and export large quantity SA633 Grade A plates and sheets. For SA633 Grade A steel price, welcome to come and visit our factory.
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