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发表于 2008-11-22 14:14:44
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来自： 中国广东深圳
STHT3： 热轧板* m7 F: t6 k+ q o
; m. G, n# S/ \! t& _; IQ235：热轧板 屈服点σs 235 MPA （N/mm²）； D6 O, [6 U4 D8 D7 ~+ ^, \% i
b$ l( u& B- i3 p2 t6 o M1 S4 FQ235分A、B、C、D、E 四级(GB700-88)
0 }% w" I3 @+ |! }( e" v3 H0 C- xQ235A级含C0.14~0.22% Mn0.30~0.65Si≤0.30S≤0.050P≤0.045
# ]/ X7 ^- l t4 A( G; L* {Q235B级含C0.12~0.20% Mn0.30~0.670Si≤0.30S≤0.045P≤0.045
4 w: Y+ a9 c* I4 u7 eQ235C级含C≤0.18% Mn0.35~0.80Si≤0.30S≤0.040P≤0.040 ( z4 e3 | u a7 I3 g
Q235D级含C≤0.17% Mn0.35~0.80Si≤0.35S≤0.040P≤0.035
2 u. ]% [3 z/ j0 xQ235D级含C≤0.17% Mn0.35~0.80Si≤0.35S≤0.040P≤0.035
% F9 k, @6 d/ Q: y* Z) q参考资料：金属材料手册 |
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