SM400ZL steel plate is Japanese standard steel for the converter shell. The negative deviation of SM400ZL steel plate thickness is limited to -0.25mm.
Melting analysis of chemical composition of SM400ZL steel plate:
| Grade | C | Si | Mn | P | S | A1t | Nb | V | Ti | Mo | N (ppm) |
| SM400ZL | 0.07-0.11 | 0.15-0.35 | 0.90-1.15 | ≤0.02 | ≤0.015 | 0.02-0.05 | 0.015-0.03 | 0.020-0.035 | 0.010-0.025 | 0.20-0.3 | ≤100 |
SM400ZL steel plate delivery condition: normalized, SM400ZL impact temperature 0℃, thickness 8-200mm.
Mechanical properties of SM400ZL steel plate, SM400ZL tensile test:
| Grade | Thickness | Tensile Test | Charpy V-Impact Test | |||||
| (mm) | Yield strength | Tensile strength | Elongation | Impact Energy Akv, J, Longitudinal | Room Temperature Aging Impact Energy Akvs, Longitudinal, J | |||
| Re, MPa | Rm, MPa | % | 0℃ | -20℃ | -40℃ | |||
| SM400ZL | ≤16 | ≥245 | 400-540 | ≥22 | ≥47 | ― | ― | ― |
| >16-40 | ≥235 | |||||||
| >40-75 | ≥215 | |||||||
| >75-100 | ≥215 | |||||||
| >100-160 | ≥205 | |||||||
| >160-200 | ≥195 | |||||||
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