» SG Grade Chart » Iron Grade| S.No. | Grade No. | Tensile Strength N/mm² min | Elongation % | Typical Hardness HB |
|---|---|---|---|---|
| 1 | -400-15 | 400 | 15 | 212 |
| 2 | -400-120 | 420 | 12 | 212 |
| 3 | -500-7 | 500 | 7 | 170-241 |
| 4 | -600-3 | 600 | 3 | 200-260 |
| 5 | -700-2 | 700 | 2 | 220-300 |
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