T91?????????????????????????????
T91????
P91?????????10Cr9Mo1VNb??
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DIN17175-79
JISG3467-88
JISG3458-88??GB5310-95
GB9948-88
ASTMA335/A335m
ASTMA213/A213m
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??????????585(MPa)??
??????????415(MPa)??
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