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發(fā)表于 2006-4-5 22:42:36
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Re: 求助：美國(guó)4340的材質(zhì)能不能淬火達(dá)到硬度HRC58-60
Material Number
1 q6 G' L8 {. l8 r: U' S~1.6565
% M7 k H- Q, l* X0 M$ c. e0 ^3 c- w! p( t
Steel group
* |; f& c: o% ~: E- A) E/ I. vStructural and constructional steels. q; f2 o" D/ G
/ p {$ x- M9 x3 J% u
Symbol2 t- X4 @% d' ], p+ c L8 V
40CrNiMoA; A50403
1 L7 d7 e2 t. a G2 |( O& d* l3 q% n4 ?6 e4 e
Standards
5 [! a+ |) Y" ]& f3 EGB T 3078 (1994)" E. S/ @( `$ G" p
Quality structural steel cold drawn bars
. X+ U, A; [" J# n2 J5 B: j; L' g2 i: }1 \/ N% c* {+ Q9 h
$ k$ |/ g$ B( q, y
Material Number6 g0 V+ f4 r5 G1 J
~1.6511; ~1.6565; ~1.6580; ~1.6582
8 z3 X4 A0 ^ N; ^* B) K$ t0 d: G1 S
Steel group
3 ]( ?' E0 i3 p3 w a. ZStructural and constructional steels
9 y/ b1 f/ P$ u, c7 p$ F, T9 z4 S; G1 m
Symbol# g0 E# N* s9 v& J- R1 w% n4 y7 ]
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)1 `( ]: E2 A! b# {8 ~7 h8 T/ \
t' Q" |) U" t/ E I9 U# w
Standards3 Z$ Q$ U, A1 K
ASTM A 29-997 f0 e' A6 e4 P1 _1 F
Steel bars, carbon and alloy, hot-wrought and cold-finished
( m# _! Z# q7 \6 n3 p" W& w0 U4 A L: J$ y( G* W+ D0 L& `* j3 s ?+ k
ASTM A 320-02
; A p7 |* ?5 a- I JAlloy steel bolting materials for low-temperature service
2 E4 F' K$ g5 e) H+ B6 J' s
: f( D4 V& w/ c% ~2 _7 dASTM A 322-010 o, w f2 L# S' ?
Steel bars, alloy, grades
' ^% ~( y! R2 e/ }. v7 p$ Q* Z2 ~4 T; K3 ~; `
ASTM A 331-00
+ s' b0 J: F$ G2 F2 @+ T$ ` B9 CSteel bars, alloy, cold-finished! {6 I* G1 j" [
8 B, \% H; q2 u; B3 ^+ x% H( x. \" UASTM A 506-00
/ R) u* C* I, `% b+ w2 q+ oSteel, sheet and strip, alloy, hot-rolled and cold-rolled, regular quality and structural quality
$ o& s$ i6 T' J1 A4 U) h1 b' \# ~& j, M8 b' Y
ASTM A 519-96
" ~; j9 l" |+ `9 ^Seamless carbon and alloy steel mechanical tubing$ }) B c5 }1 _- D+ a: d& ^/ t+ |
; J/ K7 Q* D( _$ t# S2 m+ b
ASTM A 574-00
0 R0 l+ I& R" D5 E- J1 F8 y, QAlloy steel socket-head cap screws
- {* }7 E9 Z) x; g/ u7 M; Y- m% H* r
ASTM A 646-99
f; R- f" g! F3 KPremium quality alloy steel blooms and billets for aircraft and aerospace forgings
- P( [ @2 R% l; u
/ k2 H* v; X1 A( }9 aASTM A 711-01+ L+ r5 t7 K3 P) \$ d# o
Forging stock5 l/ p) b7 p! S. f
0 N4 o% A1 _% i* C! P3 z# fASTM A 752-98
* j5 E' s+ u$ l, U `5 d/ C! NWire rods and coarse round wire, alloy steel
4 y' T1 ?9 u( X: c# A$ z' `7 P: P8 [0 ]% K: r
ASTM A 829-00
. \, b' M/ D# u% jPlates, alloy steel, structural quality* i0 }; o t2 _2 g8 O4 c6 @
+ ~) {! a0 a4 A. vSAE J 404 (2000)4 k1 i) C3 V" ^$ I
Alloy steels' l8 s& [+ p2 u
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