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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 3 s/ G0 A: ^; i0 b
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Material designation: 16CrMo4
+ Q8 J" q+ f* a8 [1 a Diagram No.: 56
+ ^- L2 W& X; ^5 a2 r2 a DIN designation: 16CrMo4
; H7 e. I$ s, g# M: f: r Mat.No. (Wr.Nr.) designation: 1.7242
6 `2 o; G, Q) 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 B$ g, z5 `/ T
Steel group: Alloy special structural steels
1 m \" f% b/ ]* M Applications: Forgings for construction of steam turbines (<= 530 °C)
; X7 q- S/ |) d" Y# P; X) R1 \ Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels
2 l# d: M! K9 X Source: KTS 2008
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v- X/ h. y( n; ~: q' D Heat Treatment& Q0 @6 s; [! F3 f
Hot working: 850-1100℃
5 i, R+ e& H0 {3 E7 o8 _5 L& [ Soft annealing: 650-700℃
% z: m- l2 ~% [5 n- | Hardening in oil: 900-950℃6 j: k) r" _/ h1 I' L$ `1 L- H' U
Tempering: 580-680℃$ f5 p/ n3 n2 S3 F% m" ~
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