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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
4 S9 b" o2 Z$ ?* f/ x' V2 A: ^" H# q0 w1 `. {3 S
Material designation: 16CrMo4" x8 z# ^0 x7 o E
Diagram No.: 56! d; k! |0 Y! j9 }
DIN designation: 16CrMo4
+ ~7 Z) m# s" P- D, K# C3 } Mat.No. (Wr.Nr.) designation: 1.7242) f+ ~7 y! t" o, d, }
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.
$ E7 i" J, h R Steel group: Alloy special structural steels( [& Z& o3 R2 p) x C$ p
Applications: Forgings for construction of steam turbines (<= 530 °C)
! a) J! ^# Y5 |! Z* m5 x Comment: Alloy special structural steels: Structural steels, Cr-Mo-steels with < 0,35% Mo, Cr-Mo-B-steels# ^( Z" |# W( j
Source: KTS 2008
, o: S. E) A, p J0 }2 Z; c2 Q; w+ n, O" B! `6 W( ^ {
Heat Treatment7 J |8 n% n( y* r! r% |0 @
Hot working: 850-1100℃4 N/ e" S8 p& ~$ _. ~ p
Soft annealing: 650-700℃" f% H+ H- j$ s9 |! N8 u. v
Hardening in oil: 900-950℃0 Y L5 x8 [3 I
Tempering: 580-680℃7 a( Q# {- S! k' C- u$ r9 n
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