| 摘要 |
A martensitic stainless steel for a disc brake rotor includes, in mass percent,C: 0.04-0.10%, Si: at most 1.0%, Mn: 0.1-2.0%,P: at most 0.04%, S: at most 0.01%, Cr: greater than 11.5 to 13.5%,Al: at most 0.1%, N: at most 0.04%, Cu: 0-1.0%,Ni: 0-1.0%, Ti: 0-0.03%and one or more ofNb: 0.01-0.08% and V: 0.05-0.5%,with the value of GP expressed by the following formula being at least 50 (%):
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