機(jī)械社區(qū)
標(biāo)題: 求助：美國(guó)4340的材質(zhì)能不能淬火達(dá)到硬度HRC58-60 [打印本頁(yè)]
作者: haiyang 時(shí)間: 2006-3-3 16:45
標(biāo)題: 求助：美國(guó)4340的材質(zhì)能不能淬火達(dá)到硬度HRC58-60
求助各位斑竹，誰(shuí)能告訴我4340的材質(zhì)能不能淬火達(dá)到HRC58-60
. V' [! n" Q9 _: u20MnCr5的材質(zhì)是不是也可以淬火后的硬度達(dá)到HRC58-60
! K0 O$ A& d5 a) |- y+ x( g* c
急！?。。。。。。?！
# w) a( F# l4 x0 t3 T) D先在這里謝謝里
作者: sun jiabng 時(shí)間: 2006-4-5 22:42
標(biāo)題: Re: 求助：美國(guó)4340的材質(zhì)能不能淬火達(dá)到硬度HRC58-60
Material Number4 v4 v! o* e; X$ E! F8 z
~1.65659 v, T l% ^7 Q$ E
4 e& ] N( s/ a, f7 R
Steel group% J7 Y/ `, q# L q
Structural and constructional steels2 ?! r: R$ `# h
- b( ^/ M5 n8 [5 I: {! t
Symbol; r$ r! a1 _7 t6 A, q% { O
40CrNiMoA; A50403
6 ]6 o9 ~) H! L* v i5 l) B3 K9 I/ e
7 y1 Y3 ^" h }# _6 iStandards+ f3 A- ?' X, A5 A' N4 j% y
GB T 3078 (1994)
4 h! k1 k) g% o- t$ CQuality structural steel cold drawn bars
3 S; L y6 C' P+ x- ^# g: s1 ]5 F5 I+ J1 m7 V
: k/ K) c5 r3 X/ t- P+ i5 oMaterial Number; {( x; R3 I/ A9 N/ n+ B
~1.6511; ~1.6565; ~1.6580; ~1.6582
0 D3 p' z, e+ J: o6 k+ r$ o: P8 k$ E2 s7 p4 o( w* `) ~5 s: y# C
Steel group3 D: Y. S+ C1 `' i2 m
Structural and constructional steels
0 ^) V! k1 }6 y6 i- V( d$ S2 [% \3 m- A7 S# y) A' T/ F
Symbol3 I. g; ]: F/ s- k7 _8 `
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)! j1 q4 N( o* d7 z* u; B1 D
; `& ?0 s6 F g3 sStandards& u( ]5 g/ m+ a& Q6 m
ASTM A 29-99
. n$ o, R) h5 [' m6 M0 kSteel bars, carbon and alloy, hot-wrought and cold-finished
2 w/ {) \9 u& |' _1 N- v- D% o
: G; H j% y/ u8 aASTM A 320-02! W/ D5 m" C Y) @, G. X" ^/ Q
Alloy steel bolting materials for low-temperature service% Y* a0 T/ Z2 j4 f) n/ y
7 x2 [$ |9 F# ], A$ }3 u
ASTM A 322-01
2 @; k4 U9 R: o- t# k2 OSteel bars, alloy, grades4 q7 w4 [( X: H" A5 v
7 {# k0 ~: k* w0 E$ J# BASTM A 331-005 w+ a0 K5 H/ W' ]
Steel bars, alloy, cold-finished
3 c3 [1 _3 ~% I0 J6 G4 \9 k/ W+ x# o* J, b {
ASTM A 506-00
) p! h3 o; ]# V2 U: F4 TSteel, sheet and strip, alloy, hot-rolled and cold-rolled, regular quality and structural quality1 e" @: l. }, K( W4 {
+ j1 M/ U4 r8 p: F5 p
ASTM A 519-96
5 O- @* ]& R; n7 kSeamless carbon and alloy steel mechanical tubing. @1 [ x1 P+ J2 Q: m. M
( C* L2 }% c7 k! l* g5 C8 {
ASTM A 574-00$ P1 A2 |, P& q; y1 T$ ~
Alloy steel socket-head cap screws
O' k Z, @& q4 ]4 e Z' E1 h7 N
$ q7 ?5 d0 ?' N) L8 M7 \' TASTM A 646-99
) P/ h5 @% X6 Q4 kPremium quality alloy steel blooms and billets for aircraft and aerospace forgings7 O# l2 Y2 d$ O7 C. B- I
2 v+ N$ |5 m b7 [- L& R$ n) g0 f9 nASTM A 711-01
( ?. s+ k) B0 I% C# c% }. ~, NForging stock
# w" m0 z; {$ u1 Z- F" T% S7 I3 a @ w: C# l0 m1 x& @9 w& C
ASTM A 752-98
' G+ e: }* z- A( w j9 D, j$ |- ZWire rods and coarse round wire, alloy steel
: _6 E: y4 q4 \8 P! m1 Q# d3 e% r5 }2 c% R
ASTM A 829-008 O6 \* \# T. x9 I6 _! N+ B
Plates, alloy steel, structural quality
|9 P' P" r; c. r
6 x( c0 w$ H) o$ b7 N% sSAE J 404 (2000)" w: v. _: X& V" V5 Z% e& _0 {' s9 p
Alloy steels' \6 ~) p5 p2 `5 i! {
作者: haiyang 時(shí)間: 2006-4-17 18:21
標(biāo)題: Re: 求助：美國(guó)4340的材質(zhì)能不能淬火達(dá)到硬度HRC58-60
大蝦，您還沒(méi)明確告訴我呢 美國(guó)4340的材質(zhì)能不能淬火達(dá)到硬度HRC58-60
7 ~: Y% }1 c5 `. @) O! u我看到20MnCr5最高能達(dá)到41-49HRC
作者: claycao 時(shí)間: 2006-5-13 12:23
標(biāo)題: Re: 求助：美國(guó)4340的材質(zhì)能不能淬火達(dá)到硬度HRC58-60
達(dá)不到你要 HRC58-60哦。
作者: lu69 時(shí)間: 2006-5-17 16:43
標(biāo)題: Re: 求助：美國(guó)4340的材質(zhì)能不能淬火達(dá)到硬度HRC58-60
4340淬火后是可以達(dá)到HRC58-60，而20MnCr5需滲碳或碳氮共滲后淬火，也可達(dá)到HRC58-60
作者: devildoevil 時(shí)間: 2011-10-7 23:59
怎么最后還是沒(méi)有一個(gè)確切的答案呢？
( r; `. \+ V- Q3 R4150應(yīng)該可以達(dá)到 58-62吧？
| 歡迎光臨 機(jī)械社區(qū) (http://www.xa-space.com/) |
Powered by Discuz! X3.5 |