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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 # t8 X9 v% H% W5 N
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Material designation: 16CrMo4
/ k5 \* D: N" f Diagram No.: 56
5 h2 k5 _/ c1 x DIN designation: 16CrMo4 Z& E* X# N" g5 h- f$ M
Mat.No. (Wr.Nr.) designation: 1.7242# n" C; o* H6 A
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 V9 `6 X/ V5 c8 t4 U) O' W
Steel group: Alloy special structural steels" L3 O2 u' }6 e. w9 m( Z1 K
Applications: Forgings for construction of steam turbines (<= 530 °C)
1 u( m& k6 Q5 W! z" ?% J6 n Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels
4 ?8 I( @3 v2 J1 ?( g% m# d2 l Source: KTS 2008$ {+ d" P# G+ A6 e) b- `/ w
3 {; c- g, J& _4 k$ m8 f$ `2 x% k4 H Heat Treatment
9 {# d3 [2 w& B8 g! ]% i, \ Hot working: 850-1100℃& ] H) v+ c) g6 o0 A. ^7 A
Soft annealing: 650-700℃8 C: l# E8 [% b' M j
Hardening in oil: 900-950℃
: y1 L$ |( F' ^; r' T" g; @2 V! b8 l Tempering: 580-680℃
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