|
|
发表于 2011-11-10 11:01:06
|
显示全部楼层
来自: 中国江苏常州
本帖最后由 wenjuanzhi2008 于 2011-11-10 11:11 编辑 # ~0 h* }* e# c
' q5 S2 d5 ?) m8 w+ W
Material designation: 16CrMo4
4 R, R) |* Y3 B" Y5 Y' X Diagram No.: 56* m3 Z! J3 J1 P. L
DIN designation: 16CrMo4
6 r: ^; y" G4 l | Mat.No. (Wr.Nr.) designation: 1.7242
$ d# ^+ ]! x) b( g, c" U( | 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.
9 u1 e# F& t$ k& q9 m Steel group: Alloy special structural steels+ V' s, ~3 c* Z+ o9 d
Applications: Forgings for construction of steam turbines (<= 530 °C)- V% P* {4 O* E
Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels& B: J! M$ y/ U! J0 b
Source: KTS 2008( U) ?, ?; \' v% K0 [1 o3 S
8 a" K% d% y' e5 P4 J$ P: i
Heat Treatment
& |* P: S: P- k& K% _" j4 B) x8 s Hot working: 850-1100℃
* z- d% K1 C( c: U' c5 B) e' X, y Soft annealing: 650-700℃& e& I) w8 Q8 g( _ M
Hardening in oil: 900-950℃/ [: P" Y7 U. E! v% k* ~2 \
Tempering: 580-680℃6 l, ]* T* T2 u' _/ t2 E7 O L
|
|