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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 - l3 {( m3 d, ~+ o9 V4 C2 W
4 j# z' k5 o% S Y# e Material designation: 16CrMo4/ }$ a7 s! X$ u! n# E# w
Diagram No.: 56
/ T9 [( F" ?) l DIN designation: 16CrMo4 W( `! E A0 p; b# S
Mat.No. (Wr.Nr.) designation: 1.7242
u( }: m+ _ I9 j4 E& n 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.
; k5 A# f! ]: V% l5 P5 E! B1 R5 B Steel group: Alloy special structural steels
! Y2 H( S& |; U0 q* E8 \ Applications: Forgings for construction of steam turbines (<= 530 °C)
+ o( T- C' X5 M/ K- o Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels
/ y* R# ?0 V6 e" l Source: KTS 2008
$ X- G- _5 P' F' c# J5 R
2 M- H( Q9 O0 |; v/ { d8 C Heat Treatment8 Q+ [& ?8 U/ K* O
Hot working: 850-1100℃! F. Z0 c$ i- F& G+ U' Q: p
Soft annealing: 650-700℃( O0 r" V% d0 K0 E
Hardening in oil: 900-950℃ `& |1 H4 L6 G* o% v2 ~! Y
Tempering: 580-680℃
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