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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
( k* W" V7 |% g* F~1.65657 j# S, I2 J; h; j3 E$ B5 z3 t" `
/ R8 r! L9 V. z5 o+ Q
Steel group. b6 z( ?: ^/ t6 ?; ?5 J
Structural and constructional steels! _5 Y* C8 @. V
f. P2 t4 o: R0 e
Symbol
* {) _2 I6 ?2 ?& C+ [5 [40CrNiMoA; A50403
# n! s+ q5 s$ W/ l4 k% I! x' o+ d6 U9 N) F/ f8 u6 d$ r* e. V
Standards& P' Q9 i" M6 c* k* H$ E# n& f( S
GB T 3078 (1994)
* x7 S& j2 M" n6 J/ dQuality structural steel cold drawn bars
/ w; h% f' C" W9 v0 i j/ d8 {9 C# c0 d% w! a# y' g
/ J) p5 }2 D" gMaterial Number) A) d' J8 v: l. y0 Y
~1.6511; ~1.6565; ~1.6580; ~1.6582* P" K+ Q$ t8 T5 x
0 Y$ A& O) `# d. d) z8 ~Steel group* ?1 x% c4 m3 [: x' }2 } \
Structural and constructional steels$ r: O2 Y& s) J. @
, K4 x; @& P$ Y2 w6 h# e3 W0 h4 q6 R
Symbol
' v1 s* ?; E0 g" |& ^' E4340 (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)0 Z# R) `4 v0 m* h& X5 Z2 ?
U1 C: h0 O8 j/ |( |: M! {
Standards5 N* T" T! b8 Z5 S+ N
ASTM A 29-99# b$ B( o5 D/ }
Steel bars, carbon and alloy, hot-wrought and cold-finished$ O( B Z$ V- C
! e' |. h% {2 z9 B0 W
ASTM A 320-02* [6 N4 k# a5 d/ `$ w
Alloy steel bolting materials for low-temperature service
/ @& ~% E6 W! y# d
8 u* h) a0 K# B8 D1 c! DASTM A 322-01
" c( J9 N5 B/ N7 Y& K: w+ i( bSteel bars, alloy, grades* ^3 }5 C* J& [3 y) M9 Y
% Q0 [$ X6 l) _ASTM A 331-00% {, o# Y5 |7 c \. w" y- i
Steel bars, alloy, cold-finished
) ]) p" q2 |6 ~( ~; H1 e0 K% u' V; y- }( n. n
ASTM A 506-00; @! g7 w3 U1 B! E$ Z$ d
Steel, sheet and strip, alloy, hot-rolled and cold-rolled, regular quality and structural quality* }& Y: g w3 ~* a2 W* u, L( f' D
7 { H- G" b5 z! W0 q3 B
ASTM A 519-964 E# o- m, E ~! E, g. S) k' z5 S
Seamless carbon and alloy steel mechanical tubing& c7 y5 j( Y0 X3 R+ x1 {5 s0 ]3 ?( R. F" d
: V; w0 Y! |1 [; U
ASTM A 574-00
5 [$ X2 k5 Z zAlloy steel socket-head cap screws5 D" U0 A3 q& M8 I8 h
+ C( J: z! }) h3 E' F6 T e9 CASTM A 646-99
2 @1 T9 b, _; mPremium quality alloy steel blooms and billets for aircraft and aerospace forgings
' i! g1 q! T% c# b; q; I5 H7 e9 q( q" s
ASTM A 711-01; K6 q5 y w5 `+ M
Forging stock
1 }; u; A8 w# O O1 z4 p% ~
5 [5 {& g v/ |, v' P# S! y, `ASTM A 752-98
& ^% B0 i: J+ s# _- R* o" PWire rods and coarse round wire, alloy steel7 m A. H3 E$ P% Q! v9 R5 ^0 m
' M2 }1 s. t; l3 Q' G! P4 t
ASTM A 829-008 Z) _2 m3 G4 v% v2 G
Plates, alloy steel, structural quality
8 y2 D4 t0 u& ^; D, w+ t5 `4 I9 O+ T: |, k6 s. q* P, g
SAE J 404 (2000); M/ }% m) X. q; a+ @+ Q/ b D
Alloy steels
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