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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 Number1 Q7 a2 R# L) s6 @4 c
~1.65656 X3 a) u! ^. B; Y) |0 z8 J4 i; m
* Z! J& l, Y0 j: g& w KSteel group
9 w' @) N7 x" B" iStructural and constructional steels
7 V0 y$ G; b) }/ Y8 P" X/ z7 s/ H- R$ N6 G7 g, r
Symbol) Q- k$ h7 ^) a- V% |7 Y6 Q
40CrNiMoA; A50403
$ e$ o! W( {- G: G/ U3 G9 m
, g! M2 d/ n+ L! ? s; R3 n8 hStandards- \) ]. }$ V, y' E& T3 x
GB T 3078 (1994)1 n6 x2 G" o+ C4 H# K7 ]* d$ U: I8 G1 r
Quality structural steel cold drawn bars- D) i- x8 ]- ~# x% Q
0 A* g: X' a9 p' F" _% n( L* g. n0 B% S3 u
Material Number
; x' y U y4 z% o~1.6511; ~1.6565; ~1.6580; ~1.65828 l! G2 v4 F' C7 P' w& k) K8 F7 U
, n8 l u0 h# A% kSteel group' v* b# O4 l0 T, r& A8 y) L2 ?
Structural and constructional steels
+ ]7 y! d) h6 p8 a
9 w3 Y) a+ U. c7 W$ ASymbol
! W3 h2 R# O% g+ m+ e" Z4340 (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)& L2 y, V" W7 b; Z' g
% `) \! s( r) t, b8 {
Standards3 ?4 p' O8 |) W6 H) R% {
ASTM A 29-99! J1 h" v% n, \. k
Steel bars, carbon and alloy, hot-wrought and cold-finished
$ c4 k5 ?- C' c: x1 e2 D8 w
0 s& {- `4 [) L/ C. V9 b3 UASTM A 320-029 |' `4 _* p! n/ D* R+ x h
Alloy steel bolting materials for low-temperature service
% I2 i. {6 P9 @. ^% c0 v
7 @) E h m! R) S8 [* R |ASTM A 322-01( t0 L* Y' P- B$ |* G2 ~* f
Steel bars, alloy, grades
" w! f1 S6 z+ C% ?% x5 w8 m* y; l3 M* C% W# E/ c8 t9 \
ASTM A 331-002 ]$ s# P4 E' V( T6 y
Steel bars, alloy, cold-finished
8 } A# z3 L2 U2 [) c% N9 s- n$ Z% F: q
ASTM A 506-00
9 D* c( X, Z7 F S0 fSteel, sheet and strip, alloy, hot-rolled and cold-rolled, regular quality and structural quality
5 A$ q- k4 @ R0 E: W6 t: f% B" X [& h: f+ M$ l" a: o/ n
ASTM A 519-96% q) N, C8 C+ Y% l+ v
Seamless carbon and alloy steel mechanical tubing
, j$ }2 n/ y; K* W: M0 c, B0 Y, A& T* S( R9 B( Y
ASTM A 574-00
; O1 f) H$ f3 c5 ^: TAlloy steel socket-head cap screws; M5 Z8 T7 ^) @4 f& I% l
( H$ B& @) |& p2 ZASTM A 646-99
8 g1 m9 ^# B r u% nPremium quality alloy steel blooms and billets for aircraft and aerospace forgings
9 y6 F% Z( i9 W! T3 P4 h
& h* `2 ]! @) u+ t! p" M# hASTM A 711-01" I- d0 w H: c5 o1 C
Forging stock
" l4 ^8 s, N+ i: D/ a$ s# ]4 L3 J( d* N$ G6 P
ASTM A 752-98: g4 t! p y( H: D N3 m/ q' o2 N& u
Wire rods and coarse round wire, alloy steel
/ Y; Q8 K7 p6 i8 {+ L3 l" m1 o% d1 |- `8 o
ASTM A 829-00( _: {/ U x$ k) F4 a- e) A; ^
Plates, alloy steel, structural quality/ G1 ^5 V+ Y* E! C% Q
! c0 ~+ P" d5 G! i, |8 }. {
SAE J 404 (2000)4 k3 l5 C; V$ B: x4 p) [/ I2 R
Alloy steels
6 c% X" `2 X: t& M+ E- C* s, a |
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