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发表于 2007-8-21 20:02:34
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来自: 中国江苏苏州
合金结构钢,相当于国标的30Cr2MoV+ F5 [% S, c$ G) L4 T$ u2 u
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Material number 1.7707 - 30CrMoV99 C" i( v+ \; Q( K6 y4 l- ^8 X6 C H
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Composition in % :7 }' j& }# N1 n
C% R2 h0 J! Y4 l
| Si
! o. Q2 }3 a+ e! q | Mn5 \ h- }1 x, s& }7 l
| P! x( c2 j8 i6 V1 D
| S
5 \+ U" e& v1 b( \ | Cr9 `0 E' g/ d% V* B) t1 w
| Mo5 Y5 j6 X4 r2 z, Q
| Ni6 q, V7 i3 N& }( T
| 0,26 - 0,34
8 M, D: k1 D+ ]5 M | max. 0,40
/ h; U/ K% D& x L! ]$ ] | 0,40 - 0,70* c0 l9 b2 D% j! o* m7 O
| max. 0,035
* @' I. e2 a8 K/ U& T- { ~ | max. 0,030
5 N+ F& f. Z( t- P6 P+ D3 K/ n | 2,30 - 2,70
1 T* G/ k8 E9 V7 _5 c9 U | 0,15 - 0,25
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5 c- X) U2 n- |, Z2 Y3 P) X |
* U6 f! W: Q1 u: {; tV$ U, X, s( m _9 J' P0 S1 D: M
| W. ]7 H, T6 N* _' W
| Ti. n3 U5 h- v5 C! {- x# D' i9 X. J
| Cu$ j( {) o1 @. b
| Al
0 @3 N# }2 D: v2 [ | Nb
3 O0 y6 [+ ^. Z | B* o" e( l" T$ L: Y% \& T4 A
| N# k" g1 F) C0 K3 n# z& B! G
| 0,10 - 0,20
$ q, m l" u _ | / k; S+ b" R- n7 u4 t' E$ p( Q8 X g
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& Z4 r0 o9 G6 x# qRange of application and heat treatment :% a3 x! P0 ~' Q6 {/ G- s5 q5 x
Heat treatable steel : automobile manufacture , crankshafts , screws , bolts 3 A3 \$ `. k5 ~3 Q' W
Hardening : 840 - 880 °C (oil or water) Soft annealing : 680 - 720 °C Normalising : 860 - 900 °C
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