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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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Material designation: 16CrMo42 i" Z2 n5 O% t1 \* B
Diagram No.: 56+ @" X$ g/ x! Z
DIN designation: 16CrMo4
; [6 G8 e+ _2 R8 g( q2 D; w% X Mat.No. (Wr.Nr.) designation: 1.7242) i7 C. c0 H1 h2 \6 z+ y- R
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.8 }; ~$ n3 m1 S. p) ~5 }& p3 ]+ E+ K
Steel group: Alloy special structural steels6 E) q) o% V- {" ?4 q* d5 g. B
Applications: Forgings for construction of steam turbines (<= 530 °C)
+ l! L! W* { J/ H7 E- {4 x$ s Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels
, S- |: T- Y( ` Source: KTS 2008$ w! e% f" H. L% @4 v6 b
t# ^5 f: n# e; X Heat Treatment5 A% Y7 v% V8 h4 g6 d
Hot working: 850-1100℃
1 F& \0 i3 s; }$ F Soft annealing: 650-700℃
; v6 Y) c1 H% d1 j) { Hardening in oil: 900-950℃# i6 L4 U9 u- r
Tempering: 580-680℃
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