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| Standard | Steel Grade | Finished | Size Range |
| No. | "S"-Square; "R"-Rectanglar | ||
| EN10210 | S235JRH,S355JOH | Hot Finished | S:40-400mm;R:50x30-500x300mm |
| EN10219 | S235JRH,S355JOH | Cold Finished | S:20-400mm;R:40x20-400x300mm |
| EN10305-5 | E155-E420 | Welded and Cold Sized | S:15-120mm;Wide Size:50-120mm;Narrow Size:10-100mm |
| ASTM500 | Grade A, Grade B, | Cold-Formed Welded and Seamless | S:1-30inch;R:3X2-30x20inch |
| Grade C, Grade D | |||
| ASTM501 | Grade A, Grade B, | Hot-Formed Welded and Seamless | S:1-30inch;R:3X2-30x20inch |




