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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
( Y& g! D. o' G3 A8 |- _0 S, h' p C# k
Material designation: 16CrMo49 T; d# d/ h) g% r
Diagram No.: 56# l9 S7 d1 Q8 C0 n
DIN designation: 16CrMo4
# o* E% h% e, n( w Mat.No. (Wr.Nr.) designation: 1.7242( G1 B+ P- m0 p I O7 {6 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.1 p; ?1 C# ^2 c& t7 O! b% {
Steel group: Alloy special structural steels! H2 b, t) c, M1 J+ T
Applications: Forgings for construction of steam turbines (<= 530 °C)/ {4 n9 h& E3 _9 L# {" e' l0 z4 ?6 ]
Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels( J0 u# z/ P; y7 b8 W4 V' G& {
Source: KTS 2008( a# p/ g8 ?1 C. ?% X/ P
3 c, M9 D, x) x! G, m2 I Heat Treatment
+ X5 F( S: k- o Hot working: 850-1100℃
0 T5 B( a' J4 ^+ [( I9 B4 |: w4 G Soft annealing: 650-700℃ Q$ ]& s5 X9 ^9 K; E
Hardening in oil: 900-950℃
: M; ^: E5 h+ {! j! ?; V Tempering: 580-680℃% Q2 G2 Y. M5 E( u
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