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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：
$ T( u$ A {$ n. h1 Z9 mC:0.19~0.26%
! [! ~/ v( p( c4 x+ G! l$ {Si:0.10~0.40%
M! b- ]6 U' @$ p8 }$ G4 aMn:1.30~1.65%
0 ?* Y" l7 h: ~. ?, ^, ^' h/ P1 [& OS,P:≤0.035%) T9 ]/ {2 N4 A3 W
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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