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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
7 n ]$ x$ V) [- s, F; M/ m4 h" }3 o2 k6 r) T
Material designation: 16CrMo4
4 v3 _0 G+ M W, q" g4 s1 i8 n Diagram No.: 56& Y9 C! \- [8 e& {6 `5 R7 Z
DIN designation: 16CrMo4/ a9 l& m( W9 _6 p6 K; E9 `; G+ Z0 ^
Mat.No. (Wr.Nr.) designation: 1.7242/ c, g5 V. k$ r0 o: D
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.0 w8 `5 m, @7 ?& l, B* ]4 V
Steel group: Alloy special structural steels
n- F& m: [) F6 K! `+ n Applications: Forgings for construction of steam turbines (<= 530 °C); K% m8 }8 X2 K8 x
Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels- ~/ \0 e2 A2 ~9 y7 B( W$ m! t
Source: KTS 2008
- J5 S1 H3 C6 c1 I8 k8 u9 T3 k" h5 {! L% y" {7 u
Heat Treatment
! M" A( a# m6 e8 A Hot working: 850-1100℃
+ K! T: D- l/ W0 h Soft annealing: 650-700℃
9 ~! n' R/ Y* h( t7 H( g Hardening in oil: 900-950℃
" I! I# J! `, @3 _ Tempering: 580-680℃
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