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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
( A" Q2 I7 `3 v) y* Z8 B. r6 L0 Q~1.6565- {% ^/ [$ ^/ P! q6 o- O7 @. U
1 X/ ^0 k9 I h0 J) T
Steel group
( i% s0 s& U( \1 H/ r1 Y! jStructural and constructional steels: k, v1 x# p; j1 D) J. e8 g
6 _* b9 v- K8 q) g; d: d2 T
Symbol
/ p* D+ T1 O& v1 L; G4 Y40CrNiMoA; A50403
6 H6 M5 Q& s8 a$ T9 H' E; i: o1 A. h
" ?* L* I# A5 G9 LStandards! @+ Z0 L c+ O7 E. w1 b' O9 g
GB T 3078 (1994)8 S2 y( a: D, }9 l3 g
Quality structural steel cold drawn bars
" t5 m9 H1 A* e1 t0 f& D. W9 g; f$ x" P7 P
# e% D! j" Y3 f! w7 j8 w* N5 b
Material Number8 `9 f. f* T( [5 }7 X) o7 Y, P
~1.6511; ~1.6565; ~1.6580; ~1.65823 E& h. z% h2 g- {( x3 f! H: r" R
! R n) A0 T3 K" t" h" i7 a2 FSteel group$ J+ u' m4 b: t
Structural and constructional steels
z: s/ n- E' S& D: L
1 G5 P4 p L- S) E& a! XSymbol, I' H, D! t) c, g; ~ G, Q- j
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)
d( F# M! T/ c' A4 d/ s# X; X! @1 A9 m; j" m2 T+ G
Standards
7 S6 W8 W0 j4 K; ^6 \ASTM A 29-997 [* u5 c, a1 `- ^0 G6 R; d
Steel bars, carbon and alloy, hot-wrought and cold-finished
7 V/ s) j: Z& V) r1 o, k# _+ `5 k9 E
ASTM A 320-02
) ^! D! W, w% Z5 X9 ?9 yAlloy steel bolting materials for low-temperature service, H b) C' G* n
6 K7 ~( i" d1 z/ a; [5 ?; J9 {
ASTM A 322-01
+ L8 T* E% A0 S# gSteel bars, alloy, grades" m8 [9 i: M% b$ v' h
& s4 u9 g7 ~0 l) \8 \3 i* e- VASTM A 331-00 P4 s1 R3 l/ M: n
Steel bars, alloy, cold-finished
9 I) K2 G& ^4 }$ y" q3 _- I! F) B0 I/ S, Y# R8 F$ {
ASTM A 506-00
8 W) m/ m" ~9 gSteel, sheet and strip, alloy, hot-rolled and cold-rolled, regular quality and structural quality7 K/ w! @2 I# ?
1 m2 p4 H3 A0 PASTM A 519-960 p m) n, @9 N1 }
Seamless carbon and alloy steel mechanical tubing
}$ O# j$ K& M" y" d& |* R$ k' p: b" k3 @9 n3 k. e: z
ASTM A 574-00
% @+ y. d- l( V0 W OAlloy steel socket-head cap screws
) t) i$ L9 M/ B; ^1 A% m# S: m4 T1 H/ A% L. i
ASTM A 646-997 w9 M# W1 X8 n
Premium quality alloy steel blooms and billets for aircraft and aerospace forgings
7 M9 p, \. b0 }9 h
5 x( J6 j! \# B; w& C3 w; xASTM A 711-017 Z" \5 j7 f$ y r9 _
Forging stock% ~- }* |+ K5 n' {# w$ ]" y
2 w4 g8 P; Y" c# i
ASTM A 752-98
# e2 Y* c/ R$ ~8 WWire rods and coarse round wire, alloy steel
2 y0 J `* e- @7 m) @, a) X# h! z/ n9 ?' _+ K2 m, ~
ASTM A 829-00
; Z% `7 k( x/ w* j" L: i3 |( x% xPlates, alloy steel, structural quality
& H4 m# o, w& i) c5 h
0 a& }3 O, q' k: M; g- BSAE J 404 (2000)
" Y# K& C6 `8 ^- b; F% c0 |4 s2 \- f0 Y% xAlloy steels
# `/ }9 }, Y. a5 L" S; K! T |
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