1.25Cr（P11的化学成分？

p11化学成分：c:0.05~0.15, mn:0.30~0.60, p:0.025, s:0.025, si: 0.50~1.00, cr:1.00~1.50, mo: 0.44~0.65 p5化学成分：c:0.15, mn:0.30~0.60, p:0.025, s:0.025, si: 0.50, cr:4.00~6.00, mo: 0.45~0.65