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Thickness | C max | Si max | Mn max | P max | S max | Cu max | Ni max |
Cr max |
Mo max |
Nb max |
Ti max | V max |
B max |
t≤25 | 0.18 | 0.15-0.40 | 0.90 | 0.020 | 0.020 | 0.40 | 0.40 | 0.30 | 0.45-0.60 | 0.02 | 0.03 | 0.03 | 0.0010 |
25<t≤50 | 0.21 | ||||||||||||
50<t≤100 | 0.23 | ||||||||||||
100<t≤150 | 0.25 |
Grade | Yield strength ReH MPa min | Tensile strength Rm MPa | Elongation A% min |
SB450M | 255 | 450-590 | 19 |
23 |
Others steel grades steel plate for pressure vessel and boiler equipment in the standard JIS G3103:
SB410 pressure vessel and boiler steel plates,
SB450 pressure vessel and boiler steel plates,
SB480 pressure vessel and boiler steel plates,
SB480M pressure vessel and boiler steel plates,