ASTM A106Gr.B 材质(SA-106B) C≤0.30 3 q, |9 @9 Q' p$ z
Mn 0.29~1.061 I! ?% k) Y2 o& M% S( i
s≤0.035& W/ V! T* j3 `; v* `- u
p≤0.035
% N& T; }5 P% c3 r% Z! O5 M* o( J si≥0.10 # n( V6 M; [2 z7 u
Rm≥415MPa Rel≥240MPa
4 s. O9 i+ D3 ?" l( j20G(GB5310)C:0.17~0.24
; ^1 N. L% F" T9 W+ b H Mn 0.35~0.654 A4 E2 a4 V6 y" Y
s≤0.030
6 ]# d; w( m+ N$ ^. W$ r p≤0.030. H9 O- z' x' d" M
si:0.17~0.37
" z- J7 U7 b2 j2 h* E Rm≥400MPa Rel≥215MPa(横向)
$ v: F9 u9 X2 t- p1 g( x0 c# @ Rm≥410~550MPa Rel≥245(纵向)
3 A) ^- I7 ^4 A% y6 E, n& s; C20(GB8163)C:0.17~0.23; {/ V7 l/ R$ [1 w# e
Mn 0.35~0.650 ?6 h& N+ _9 Q, h8 N& G4 \& o
s≤0.030. ?. q; H; a, @% V& L2 R$ j) B1 l
p≤0.030( n3 X0 X' p6 K7 @
si:0.17~0.37
d8 u# y, c" J Rm≥410~550MPa Rel≥245(纵向)
. P4 t$ e) x% D$ h" L5 I$ t/ H从性能和成份上自己可以判断了吧 |