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ASTM A537 Class 3 is a quenched and tempered carbon-manganese-silicon steel plate designed for high-stress applications in pressure vessels. It offers excellent toughness and strength at elevated temperatures. The material undergoes specific heat treatment (quenching and tempering) to meet strict mechanical property requirements.
| Material Grade | ASTM A537 / ASTM A20 | Standard | ASTM A537 / ASTM A20 |
| Thickness Range | 5-150 mm | Width Range | 1200-3000 mm |
| Length Range | 6000-12000 mm | MOQ | 1 Ton |
| Lead Time | 7-15 days | Port of Shipment | Shanghai / Tianjin |
| C | ≤0.24 | Si | 0.13-0.55 |
| Mn | 0.92-1.72 | P | ≤0.035 |
| S | ≤0.035 | Cu | ≤0.38 |
| Ni | ≤0.28 | Cr | ≤0.29 |
| Mo | ≤0.09 | Yield Strength (≤65mm) | ≥380 MPa |
| Tensile Strength | 550-690 MPa | Elongation | ≥22% |
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