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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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& v1 \7 b/ \( i4 ` `3 x% U Material designation: 16CrMo4
2 B w. {& X% C( ^& Q7 p/ D Diagram No.: 569 s8 w4 P; C! K) t: M* ]
DIN designation: 16CrMo4
0 i; ?, X* V! p" S, v Mat.No. (Wr.Nr.) designation: 1.7242
* |! o) p& \' V0 j) m 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.
6 r2 q) d" e! r# T' V Steel group: Alloy special structural steels
4 y! \. k4 A0 k9 ^ Applications: Forgings for construction of steam turbines (<= 530 °C)
; d F4 I/ r% ^* r& ] Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels
: \ r$ ^. K; m: g& J% T+ {) U. S+ { Source: KTS 2008/ l' z) R5 I/ y* e
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Heat Treatment
5 K8 o; m8 d3 l2 b% n Hot working: 850-1100℃
$ j) q$ j& G7 X% I& p Soft annealing: 650-700℃
: {% R$ `- r2 K# c Hardening in oil: 900-950℃
/ K5 t3 G8 i% u3 f& j' p Tempering: 580-680℃/ I: u( ?1 {, Y3 A) y
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