ASTM A573-00a Structural Carbon Steel Plates of Improved Toughness
| ASTM A573-00a Structural Carbon Steel Plates of Improved Toughness |
| Grade | Thickness | Chemical Compositions % | Tensile Test |
| (t) mm | C | Si | Mn | P | S | Yield Point | Tensile Strength | Elongation |
| | |
| ksi(N/mm2) | ksi(N/mm2) | Test piece in(mm) | % |
| | | min |
| Grade58 | t ≦ 38.10 | 0.23 max | 0.1 | 0.6 | 0.035 | 0.04 | 32(220) | 58-71(400-490) | GL ＝ 8(200) | 21 |
| ～ | ～ | | | | | |
| 0.35 | 0.9 | max | max | min | GL ＝ 2(50) | 24 |
| Grade65 | t ≦ 12.70 | 0.24 max | 0.15 | 0.85 | | | 35(240) | 65-77(450-530) | GL ＝ 8(200) | 20 |
| ～ | ～ | | | | | |
| 12.70 ＜ t ≦ 38.10 | 0.26 max | 0.4 | 1.2 | | | min | GL ＝ 2(50) | 23 |
| Grade70 | t ≦ 12.70 | 0.27 max | | | | | 42(290) | 70-90(485-620) | GL ＝ 8(200) | 18 |
| | | | | | |
| 12.70 ＜ t ≦ 38.10 | 0.28 max | | | | | min | GL ＝ 2(50) | 21 |
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