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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 / F1 w; e1 l+ U) |' b
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Material designation: 16CrMo4
- z& C1 J5 \5 u6 d Diagram No.: 569 @7 w; \& o7 |+ L0 q$ v
DIN designation: 16CrMo4
' Z+ P* r: q& M3 N Mat.No. (Wr.Nr.) designation: 1.7242/ O: `+ o; p+ H- Y
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.- S2 W- ]& A2 u
Steel group: Alloy special structural steels7 z4 \& [: L0 J$ ?; E" Q6 p
Applications: Forgings for construction of steam turbines (<= 530 °C)! Z0 N K% d9 s
Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels! W/ {- D, k& w( Y8 o
Source: KTS 20085 g3 I& t% V0 e
' l1 ^- f7 [% N8 k Heat Treatment
+ O- {1 g- t; b8 d0 B! v Hot working: 850-1100℃
: O5 z# d/ [2 ]8 C Soft annealing: 650-700℃
. O9 V/ E9 i& p2 E3 w9 ~$ c Hardening in oil: 900-950℃
) a, P6 y" t, w+ ]. v8 V' \3 ~7 f Tempering: 580-680℃9 k+ G2 m! N5 q6 [# _9 z
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