铝 Al: 0.1-0.25,
C18150铬锆桐
镁 Mg: 0.1-0.25,
铬 Cr: 0.65,
锆 Zr:0.65,
铁 Fe:0.05,
硅 Si:0.05,
磷 P:0.01,
杂质总和:0.2
抗拉强度为(δb/MPa):540-640,
硬度为HRB:78-88,HV:140-180.