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Re: 求助：美國4340的材質能不能淬火達到硬度HRC58-60
Material Number
! W* R0 @8 j* _" z~1.6565( U6 S3 Q! H, W, M( y
7 \& P6 j/ `: g) m3 H) x4 u7 J
Steel group6 J, Z- N1 ~0 C. o% K0 O& |
Structural and constructional steels$ i5 R; L5 x4 D6 ^! N' {
- }& _6 }" j3 v, F# oSymbol1 E& G# ^8 [8 v
40CrNiMoA; A50403# Q X2 ^$ p7 D
& o; @* a3 S3 V! I; R
Standards- f1 J5 F# [5 R% [, ~! a1 j
GB T 3078 (1994)
' a' G. x9 U1 n! t! W! ?% x3 UQuality structural steel cold drawn bars
9 x5 ~- O; q+ y+ D+ |# B! P) o0 Z1 J
' r5 q* [/ U( _
Material Number4 R6 ?2 v; S4 a! f. |& }! N' c
~1.6511; ~1.6565; ~1.6580; ~1.6582
8 E# d$ r, z# c4 p$ O1 A* y( ^# F
Steel group+ K) z0 H5 {& F! w
Structural and constructional steels
! m& X& N2 T0 _* T2 o o$ X1 C" c! T
- }. _ a% E8 @& i/ dSymbol
9 [9 n6 \* c2 X7 e6 o; y) x4340 (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)
F, g- U" c: H/ v& e
9 {( t1 G/ H# |' W* eStandards" t" W6 _/ z2 |) w6 V4 f5 J
ASTM A 29-99+ U% L6 s- D% u8 y& a R" j
Steel bars, carbon and alloy, hot-wrought and cold-finished
& Y$ i$ Q6 E& p+ d% N3 |2 I& F% z) p/ O8 r, ?- N) n, {; a
ASTM A 320-024 K1 }" v ]. R0 S# s
Alloy steel bolting materials for low-temperature service
* W3 K$ C! t: f. T1 A8 x* S6 o. T! n r! F
ASTM A 322-01# X+ U+ W2 L" r9 C
Steel bars, alloy, grades
$ t" q% x# J4 S" F7 O1 w
3 _8 i @3 Z" f8 r, l; k8 mASTM A 331-00$ a3 q+ l# P, s9 U) t# `
Steel bars, alloy, cold-finished
! G+ q9 S6 N) `) e4 f( ?7 l, T9 i) p/ f; p/ A; D5 ]/ i
ASTM A 506-00
( W1 }! z. t+ C; \) X$ ]: ?Steel, sheet and strip, alloy, hot-rolled and cold-rolled, regular quality and structural quality' t* T1 q9 ^, C4 z. L; O0 V# X
* J; A. ~& u1 E% [9 O
ASTM A 519-962 U, V, V% @( {) s- I. f& r$ N) _
Seamless carbon and alloy steel mechanical tubing* O9 w3 d* m* x1 R9 P Q9 M8 a
@1 b$ R+ c- g: M- s
ASTM A 574-00+ P& b/ j6 L: f8 j
Alloy steel socket-head cap screws
5 D' q3 [' F: z$ e+ @1 U# G8 b6 u% u! m z* w |# W
ASTM A 646-99+ m" r/ O, `9 z+ Q# R9 t! s+ [
Premium quality alloy steel blooms and billets for aircraft and aerospace forgings
; Y$ _- L; ^; _' l0 N% {0 z1 O. ]
ASTM A 711-01
2 x, m/ H8 Y; x0 R3 gForging stock
2 `' T U- p; u1 L- b+ r6 Y/ B- s$ X6 H$ P+ w) D! }0 g1 m+ ~1 q
ASTM A 752-98( |3 V% x% L8 }' V4 S) {: X. C& X3 R
Wire rods and coarse round wire, alloy steel
/ h# h( U1 q' s9 m( Z1 E' ?
$ S. V. o/ z3 tASTM A 829-00- l% G0 ]' I" C+ @
Plates, alloy steel, structural quality
7 H* H! v% Z& M0 M) v" M- R7 Q/ r( F" J2 D8 ]2 L4 k
SAE J 404 (2000)+ q+ F; ^: \& ~4 b; o
Alloy steels3 y1 R* k: z( n( P$ a7 z8 p
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發表于 2006-3-3 16:45:14
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