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发表于 2010-3-11 15:06:50
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来自： 中国广东深圳
化学成分：, v- h3 q# T/ D
C:0.19~0.26%
1 r# m$ }9 [" Y4 T2 Y [& w6 \Si:0.10~0.40%/ n) N1 c2 l7 P" f2 v+ I9 B' ?; F
Mn:1.30~1.65%* ]3 w1 ?. A0 f% x% o1 p
S,P:≤0.035%
* j0 G) t, Q9 B; p3 H可以参考标准为ISO 683-1987 Heat-treatable steels, alloy steels and free-cutting steels - Part 1: Direct-hardening unalloyed and low-alloyed wrought steel in form of |
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