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发表于 2006-4-5 22:42:36
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Re: 求助：美国4340的材质能不能淬火达到硬度HRC58-60
Material Number
7 ~+ z& G' |2 p~1.6565
' v# y1 X7 t: A% q1 s# D4 r
; y5 x/ Q5 n6 B9 LSteel group
4 Q6 _- l0 O [; {+ kStructural and constructional steels
! g# s: p& o: y6 I2 D
. [2 I7 d4 O8 U! m9 Z3 `( f) }- @Symbol
( e5 o( l% E3 O( h40CrNiMoA; A50403
# P) I3 t' ^5 m s! i$ E& _ ~) P/ g9 m$ l6 p
Standards2 ^4 h4 Y# ?8 p
GB T 3078 (1994)2 s0 ~5 F( o" d% ]5 N: u
Quality structural steel cold drawn bars! |- a: Y; Y( ?+ q: E& a/ I. x# P& U
& u* ]8 s+ _# x2 z; w+ S
7 O6 m1 w3 v, m# iMaterial Number
4 ?" p2 C: r3 ~5 t }~1.6511; ~1.6565; ~1.6580; ~1.6582
& ^" O* z; p9 W# Q$ a: w
2 b) C: ]: x8 N! H% w& e) {- Q. ySteel group' s, m) F; k! [5 I$ M% q
Structural and constructional steels
5 ?) T, I* \5 p3 W: ?
0 ?+ O+ W$ g, r+ f: q) \Symbol- a: Y2 l( v. W) y h
4340 (SAE); G43400 (UNS); A 29 (4340) (ASTM); A 320 (L43)(4340) (ASTM); A 322 (4340) (ASTM); A 331 (4340) (ASTM); A 506 (4340) (ASTM); A 519 (4340) (ASTM); A 574 (4340) (ASTM); A 646 (7)(4340) (ASTM); A 711 (4340) (ASTM); A 752 (4340) (ASTM); A 829 (4340) (ASTM); 6359F (AMS); 6409B (AMS); 6414H (AMS); 6415P (AMS); 6454C (AMS); 6484B (AMS); MIL-S-5000 (MIL): ]9 h% b0 Z: _2 Y& `
( }6 l3 K2 S6 J
Standards
6 d- _* L" W" j5 |ASTM A 29-99$ P8 j$ v2 u7 i+ f5 s) c! D7 H) ?
Steel bars, carbon and alloy, hot-wrought and cold-finished
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ASTM A 320-02
9 ?* k6 j4 r, `. l, R# [Alloy steel bolting materials for low-temperature service
8 R6 m0 Q2 U2 \6 U, A! p
3 x$ l, [1 z, @& e' fASTM A 322-01% }1 M* L. K7 ^" F* c) s( [
Steel bars, alloy, grades( g% D* R; r A! o. v
* F) [5 ]/ j d; K8 u+ u4 F1 A$ AASTM A 331-00
0 r% z, _3 P, e3 pSteel bars, alloy, cold-finished% B* C5 j( d! M z: c
+ |% n, f9 [/ f! f) I% IASTM A 506-002 m( y# ]/ a* j
Steel, sheet and strip, alloy, hot-rolled and cold-rolled, regular quality and structural quality. e7 P- R8 E% C3 A8 e
3 P% |& a: t6 S6 OASTM A 519-96
) r& }( m8 | {1 e* l$ {8 H# qSeamless carbon and alloy steel mechanical tubing6 P2 b# |% N2 N" j3 ~
# ]+ p; Q& y! p( z& q' W
ASTM A 574-00
+ i/ M! ~; V/ [ IAlloy steel socket-head cap screws. W _8 f5 T( G
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ASTM A 646-99& S* y& D3 h5 i5 [: C5 q
Premium quality alloy steel blooms and billets for aircraft and aerospace forgings
2 H! e2 o3 `0 v u' p, f5 _ D5 O+ G0 q3 v m/ l L4 }5 C
ASTM A 711-01
( E& `. E# z/ w9 dForging stock
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2 j2 c3 f9 v1 ^# X) W" w7 O+ Q* LASTM A 752-98
! P1 N1 v# W3 g# M1 |" F6 xWire rods and coarse round wire, alloy steel( g! Y V q$ e3 ^0 |9 T
5 t8 L$ ]: n/ V: L. H/ g4 GASTM A 829-007 \( I3 ]/ @" b
Plates, alloy steel, structural quality
. Z# c, m& C1 L# @ K. |4 ]& C2 J) P0 x) U- C% ~6 m
SAE J 404 (2000)
( H; D6 _0 l5 eAlloy steels) h) N4 m U ~0 U: n: W
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