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发表于 2011-11-10 11:01:06
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来自: 中国江苏常州
本帖最后由 wenjuanzhi2008 于 2011-11-10 11:11 编辑 / V) ^4 o6 a4 L7 Y8 L. ~" p3 K
9 ]6 d( e4 _# A0 \% ]; M Material designation: 16CrMo4
2 R# g3 r5 R+ m6 H/ b x# H Diagram No.: 56
9 \* i+ n" z) E DIN designation: 16CrMo4
' o: R$ _3 _! ?4 C8 I d* h Mat.No. (Wr.Nr.) designation: 1.7242
. t5 x; u% F6 W$ I Chemical composition in weight %: 0.13-0.20% C, 0.15-0.35% Si, 0.50-0.80% Mn, max. 0.035% P, max. 0.035% S, 0.90-1.20% Cr, 0.20-0.30% Mo, max. 0.40% Ni.
3 o2 i" H q/ s* ^& R7 A; _! a Steel group: Alloy special structural steels- @' H1 n, z$ d
Applications: Forgings for construction of steam turbines (<= 530 °C)# @( c0 n; o5 Z# m3 F$ c; }* f' t; w
Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels
6 P1 g3 w) @; g Source: KTS 20082 ]: W1 _* n' ~6 ]- p( s. k
' g/ o' ]1 W9 ~. e! S Heat Treatment
2 a2 r2 r0 ~. w! |- H Hot working: 850-1100℃ e& \# C4 X0 v6 N v, J3 U
Soft annealing: 650-700℃
* ` L) ?6 i0 l+ H/ p9 _ Hardening in oil: 900-950℃
# J; A4 X1 G6 @% k Tempering: 580-680℃
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