
| a203 grade b chemical composition | ||||||
| Grade | The Element Max (%) | |||||
| a203 grade b | C | Si | Mn | P | S | Ni | 
| 0.25 | 0.13-0.45 | 0.88 | 0.035 | 0.035 | 2.03-2.57 | |
| Yield strength (≥Mpa) | Tensile strength (Mpa) | Elongation in ≥,% | |
| 275 | 485-620 | 200mm | 50mm | 
| 17 | 21 | ||