S355NL is European high strength steel. S355NL steel plate, 355 refers to the yield strength and NL means the minimum impact energy is required under the temperature is not less than -50℃. EN10113 S355NL steel in normalizing condition chemical composition:
| Grade | Chemical composition % max | ||||||
| C | Si | Mn | P | S | Nb | V | |
| S355NL | 0.18 | 0.5 | 0.90-1.65 | 0.025 | 0.020 | 0.05 | 0.12 |
EN10113 S355NL normalized steel mechanical properties at room temperature:
| Grade | minimum Yield strength ReH,Mpa N/mm2 |
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| Thickness, mm | ||||||||
| ≤16 | >16-40 | >40-63 | >63-80 | >80-100 | >100-150 | >150-200 | >200-250 | |
| S355NL | 355 | 345 | 335 | 325 | 315 | 295 | 285 | 275 |
| Grade | Tensile strength N/mm2 MPa | The minimum elongation after fracture L0=5.65√S0 |
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| Thickness, mm | Thickness, mm | ||||||||
| ≤100 | >100-200 | >200-250 | ≤16 | >16-40 | >40-63 | >63-80 | >80-200 | >200-250 | |
| S355NL | 470-630 | 450-600 | 450-600 | 22 | 22 | 22 | 21 | 21 | 21 |
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