4340 Alloy Steel Bar
Alloy Steel Round Bar (6)(001)
Alloy Steel Round Bar (8)(001)
Alloy Steel Round Bar (9)(1)(001)

4340 Alloy Steel Bar

Tensile zog (MPA): 1860
Kev txo qis hauv cheeb tsam (ψ / feem pua): 25
Impact (J): 23
Hardness (Anealed Condition): Tsawg dua los yog sib npaug rau 241HB

Xa kev nug

Khoom Taw qhia

Specification

AISI 4340 ultra siab zog tensile steel round bar rau aerospace applickev

Cov Qauv: ASTM, JIS, GB, EN (DIN, BS, NF) Los yog Raws li cov neeg siv khoom xav tau.

Product Basic Information:

Qhov Loj
Round Bar	Txoj kab uas hla (mm)	Ntev (mm)	--
100~1000	500~12000	--

Chemical Composition thiab Mechanical Properties (In Quenched & Tempered State)

Khoom siv	4340 Alloy hlau
Tshuaj muaj pes tsawg leeg	Mechanical Properties (Hauv Quenched & Tempered State)
C	0.38-0.46	Tensile zog (MPA)	1860
Si	0.17-0.37	Yield zog (MPA)	-
Mn	0.60-0.90	Elongation (δ5 / feem pua)	-
Cr	0.70-0.95	Kev txo qis hauv cheeb tsam (ψ / feem pua)	25
Mo	0.30-0.65	Kev cuam tshuam (J)	23
P	Tsawg dua lossis sib npaug rau 0.010	Hardness (Anealed Condition)	Tsawg dua lossis sib npaug rau 241HB
S	Tsawg dua lossis sib npaug rau 0.010
Cu	Tsawg dua lossis sib npaug rau 0.30
Ni	1.65-2.00
V	Min 0.05

Kev piav qhia
4340 Hlau yog cov cua sov kho tau, tsis tshua muaj hlau hlau uas muaj npib tsib xee, chromium thiab molybdenum. Nws paub txog nws qhov toughness thiab muaj peev xwm ntawm kev txhim kho lub zog siab hauv kev kho cua sov thaum tuav lub zog zoo qaug zog. Ib qho nrov heev, ntau yam steel. Nws tuaj yeem raug kho cua sov kom tsim tau ntau yam ntawm lub zog tensile hauv nruab nrab.

Daim ntawv thov
High voltage bolts thiab ceev, crankshafts, cam shafts, kis axles, torsion tuav, tsav shafts, twj tso kua mis shafts, cab shafts, conveyor rollers, stems, pins, khi rods, clutch discs. Loj-mas tuag rau kub stamping. 4340 Hlau yog dav siv nyob rau hauv kev lag luam aerospace rau cov qauv ntawm cov khoom siv sib dhos, lub fuselage thiab tsaws iav, kiv cua dav hlau qag.