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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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+ w8 y3 @8 L7 x Material designation: 16CrMo4; N- ? @3 J) x; b( F# s: t
Diagram No.: 56
5 F) H8 H! p' Q8 i# L |# p DIN designation: 16CrMo4
0 y. p+ ~$ X$ | b0 ~7 n$ B9 @9 C Mat.No. (Wr.Nr.) designation: 1.7242
F1 _# j6 c& \, A1 o: U9 | 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.
( B: B+ [8 H* e Steel group: Alloy special structural steels
, x* h7 X A6 w Applications: Forgings for construction of steam turbines (<= 530 °C)! C2 L( d2 v9 O, X. _
Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels! Z, g' K0 A: f* G! `5 ^# _
Source: KTS 2008
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Heat Treatment
5 {: F; g: J3 ? Hot working: 850-1100℃+ k$ q( @6 u: c: s- S5 g: i6 D
Soft annealing: 650-700℃
% p4 X0 K3 [) C Hardening in oil: 900-950℃
- p7 G, o, {( ^* h6 M4 S! t: S; p Tempering: 580-680℃
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