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Grade | C max | Si max | Mn max | P max | S max | Cr max |
Cu max |
Mo max | Nb max | Ni | Ti max | V max |
X9Ni9b | 0.12 | 0.30 | 0.90 | 0.025 | 0.020 | 0.30 | 0.40 | 0.12 | 0.02 | 8.50-9.50 | 0.03 | 0.05 |
Grade | Plate Thickness(mm) | Usual delivery condition | Yield strength ReH MPa min | Tensile strength Rm MPa | Elongation A% min | steel plate Impact Energy KV2 J min at a temperature in °C of | ||||
-196 | -130 | -110 | -101 | -70 | ||||||
X9Ni9b+NT | 6≤t≤50 | +N(+NT) | 520 | 690-830 | 18 | 34 | - | - | - | - |
X9Ni9b+QT | +QT | 590 | 41 | - | - | - | - |
Others steel grades steel plate for pressure vessel and boiler equipment in the standard ISO 9328-4:
13Ni14b pressure vessel and boiler steel plates,
14Ni9 pressure vessel and boiler steel plates,
14Ni14 pressure vessel and boiler steel plates,
X9Ni5 pressure vessel and boiler steel plates