30CRMOV9 / 1.7707 ALLOY STEEL

30CrMoV9 yog cov hlau uas feem ntau yog npaj rau kev tsim cov quenched thiab tempered qhov chaw, uas feem ntau machined thiab tom qab nitrided. Cov alloy 30CrMoV9 feem ntau yog tsim los ntawm EAF / VD / / LF ua raws li electroslag refining (ESR) yog tias tsim nyog rau lub hom phiaj tshwj xeeb. Cov tuav thiab, qhov twg siv tau, forgings raug kuaj ultrasonic raws qib sib txawv raws li cov neeg yuav khoom xav tau. Bars feem ntau yog muab ci rau hauv qhov mob annealed, lossis ci ntsa iab tshwj xeeb.

CHEMICAL COMPOSITION 30CRMOV9

C	Mn	Si	P	S	Cr	Ni	Mo	V
0.26-0.34	0.40-0.70	0.40 max	0.035 max	0.035 max	2.30-2.70	0.60 max	0.15-0.25	0.10-0.20

MECHANICAL PROPERTIES 30CRMOV9

Txheej txheem	Txoj kab uas hla (mm)	Tensile zog Rm (Mpa)	Yield zog Rp0.2 (Mpa)	Elongation A5 (%)	Impact value Kv (J) Kiv cua kub
QUENCHED THIAB TEMPERED	160 max	900 min	700 min	12 feeb	35 feeb
QUENCHED THIAB TEMPERED	160-330	800 min	590 nqi	14 feeb	35 feeb

Lub cev muaj zog ntawm 30CRMOV9

Cov tub ntxhais hluas module (GPa)	Poisson tus ratio (-)	Shear module (GPa)	Qhov ceev (kg / m3)
210	0.3	80	7800
Nruab Nrab CTE 20-300°C (µm/m°K)	Tshwj xeeb kub muaj peev xwm 50/100 ° C (J/kg ° K)	Thermal conductivity ambient kub (W/m ° K)	Hluav taws xob tiv taus qhov kub thiab txias (µΩm)
12	460-480 ib	40-45 : kuv	0.20-0.25 Nws

Kev kho cua sov ntawm 30CRMOV9:

1. Mos Annealing: Kub rau 680-720oC, txias maj mam. Qhov no yuav tsim qhov siab tshaj plaws Brinell hardness ntawm 248.
2. Nitriding:
3. Gas / plasma nitriding kub (gas, ntsev da dej): 570-580oC
4. Gas / plasma nitriding kub (hmoov, plasma): 580oC
5. Nto hardness tom qab nitriding: 800 HV
6. Hardening: Harden los ntawm qhov kub ntawm 850-880oC ua raws li cov roj quenching.

TEMPERING ntawm 30CRMOV9:

• Tempering kub: 570-680oC.

FORGING 30CRMOV9:

• Kub tsim kub: 1050-850oC.

AVAILABLE SHAPE:

• Dub bar / Pav ca / Square bar / Yeeb Nkab, / Steel strip, / daim ntawv
• Bright - peeled + polishing, tsis muaj kev sib tsoo
• Forged - nplhaib, raj, yeeb nkab casing, discs, ncej

TSEEM CEEB NTAWM 30CRMOV9:

Alloy structural steels yog dav siv nyob rau hauv cov ntaub ntawv ntawm lub nkoj, tsheb, dav hlau, coj missile, riam phom, railway, choj, siab nkoj, tshuab cuab yeej, mechanical Cheebtsam nrog ib tug loj sectional loj thiab thiaj li nyob., Mechanical gears, gear ncej, main axis, valve pas nrig, Mechanical qhov chaw - txuas pas nrig, ntsia liaj qhov rooj thiab txiv ntoo, Multidiameter ncej, siab hlab ntsha, seamless yeeb nkab