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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
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Material designation: 16CrMo4. `/ L) `. h1 L* E, {
Diagram No.: 56+ u. q' A6 r: {! w; v7 p/ Z
DIN designation: 16CrMo4
* g! p8 i9 H. s. E- H Mat.No. (Wr.Nr.) designation: 1.7242) c: }" }, h# B( @- ~0 y$ d9 H
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.
4 H4 z$ i, h! v) J% O$ P6 Y Steel group: Alloy special structural steels( S1 p- z3 \6 |8 u: o: N
Applications: Forgings for construction of steam turbines (<= 530 °C)2 `/ b1 d) N8 ?% l5 x3 o2 D, `$ v
Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels
" Q; @' ~0 Q* c3 v; n5 X8 r+ t j Source: KTS 2008
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; t4 W4 s. H& c& p Heat Treatment
x" V/ E) P/ m( E* k# o Hot working: 850-1100℃
. X, f+ O, C9 Q, {& C. ?( u. ~3 g Soft annealing: 650-700℃
4 T8 z/ U* |: @7 N9 S& p( A Hardening in oil: 900-950℃
+ B) L1 M7 g0 B6 `6 [# V/ w Tempering: 580-680℃1 I3 J0 ~ F) x& I6 g' D' j
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