請高手解答EN10025

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! u4 L1 ^6 B! R. d' W1 n% j請材料高手解答
% @/ K: E% D3 A# B5 f0 A9 }EN10025-2
) b/ a! s5 Z. zEN10025-3
EN10025-4
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) I+ B' [+ ~3 g, t- r! Y的區(qū)別。
4 r, _" H& s/ q+ iEN 10025-2:2004, Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy
structural steels.
) }3 o6 ~5 @: Z& P  WEN 10025-3:2004, Hot rolled products of structural steels - Part 3: Technical delivery conditions for
% q7 G# G, o# S, r% ?' s$ Enormalized/normalized rolled weldable fine grain structural steels.
EN 10025-4:2004, Hot rolled products of structural steels - Part 4: Technical delivery conditions for
thermomechanical rolled weldable fine grain structural steels.
EN 10025-5:2004, Hot rolled products of structural steels - Part 5: Technical delivery conditions for structural
- I4 a: ~2 w  K9 isteels with improved atmospheric corrosion resistance.

1 D. f# u: b" f+ o8 o; ?本人只看出化學(xué)成分的細微差別，無非是從2到5 雜質(zhì)PS 等的控制嚴格了
- a) N1 K5 \) d( ]請從交貨狀態(tài)，檢驗方法等方面區(qū)別給與支持.
$ O( y$ a# y' B$ u$ J' O. p, N謝謝各位大蝦了！！！！