4Cr5MoSiVTaw qhia:

Alloy cuab yeej steel rau kub ua hauj lwm rau pwm rau tuag casting ntawm txhuas alloys, hlau nplaum, zinc, nias kav, tooj liab alloy tuav thiab lub teeb hlau nyob rau hauv lub siab. tsawg susceptibility rau tsim ib tug nto tawg net.Disadvantages ntawm qib yog tsis tshua muaj rhiab heev rau ceev ceev kub hloov thaum lub sij hawm ua hauj lwm, tsis tshua muaj kev cuam tshuam thiab poob siab kuj. Ua ntej siv cov cuab yeej yuav tsum tau sov rau qhov kub tsawg kawg nkaus ntawm 200 C, tab sis yuav tsum tsis txhob tshaj qhov kub thiab txias.Nws yog siv rau kev tsim cov riam kub ua hauj lwm, tuag inserts rau presses thiab forging tshuab, screws, tuag, pwm rau yas, stamps, mandrels, xuas nrig ntaus, tooj liab dov mills.Cov hlau kuj muaj tom qab ESR electroslag melting, uas guarantees siab purity - pom zoo rau pwm rau casting non-ferrous hlau alloys nyob rau hauv siab, thiab ESF uas guarantees zoo-grainability.

Cov cuab yeej steel 4Cr5MoSiV yog cov cuab yeej kub ua haujlwm steel nrog siab toughness thiab zoo tshav kub tsis kam. 4Cr5MoSiV yog kub tawg resistant thiab muaj thermal conductivity zoo. Rau cov ntawv thov nyuaj tshwj xeeb, muaj cov khoom siv tshwj xeeb siab purity (ESU-Quality), Feem ntau, cov khoom siv no yog siv los tsim extrusion. Feem ntau 4Cr5MoSiV yog muab nyob rau hauv qhov muag-annealed mob.

4Cr5MoSiVDaim ntawv thov:

4Cr5MoSiV Kub Ua Haujlwm Steels feem ntau yog siv rau cov qauv kev nyuab siab heev xws li dav hlau tsaws iav. Nws tiv taus softening ntawm qhov kub txog li 1000 F thaum khaws zoo ductility thiab toughness txawm nyob rau theem zog ntawm qhov kev txiav txim ntawm 275 ksi.

4Cr5MoSiVTxuj Txuj Ci:

TS EN 4957 Cov Khoom Siv Hluav Taws Xob

4Cr5MoSiVTxhua Qib Sib Piv:

ASTM	AFNOR	DIN	UNI	JIS	B.S.
H11	Z38 CDV 5	1.2343	T20811	SKD 6	BH 11

4Cr5MoSiVChemical Composition (%):

C	Si	Mn	P	S	Cr	V	Mo
0.33-0.43	0.80-1.25	0.20-0.60	0.030 max	0.030 max	4.75-5.50	0.30-0.60	1.10-1.60

4Cr5MoSiVKev kho cua sov:

FORGING: 4Cr5MoSiV kub ua hauj lwm steels yog forged ntawm 1121 degree (2050 degree F). Rau hom hlau no, forging qis dua 899 degree (1650 degree F) tsis zoo dua.

ANNEALING: 4Cr5MoSiV kub ua hauj lwm steels yog annealed ntawm 871 degree (1600 degree F) thiab maj mam txias ntawm 4 degree (40 degree F) nyob rau hauv lub cub tawg.

HARDENING: Preheat rau 1500 F thiab tom qab ntawd kub rau 1850 F thiab tuav rau 15 mus rau 40 feeb. Cua txias (air quench).

TEMPERING: Tempering yog nqa tawm ntawm 4Cr5MoSiV cov cuab yeej steels ntawm qhov kub ntawm 538 txog 649 degree (1000 txog 1200 degree F) kom tau Rockwell C hardness ntawm 54 txog 38. Ob chav tempering kuj tuaj yeem ua rau cov hlau no txhua txhua ib teev ntawm qhov nyiam. tempering kub.

4Cr5MoSiVMechanical Properties:

Cov khoom	Metric	Imperial
Hardness, Rockwell C (cua txias los ntawm 982 degree, 45 mins)	52.5	52.5
Hardness, Rockwell C (cua txias los ntawm 1010 degree, 45 mins)	56	56
Hardness, Rockwell C (cua txias los ntawm 1038 degree, 45 mins)	57	57
Modulus ntawm elasticity	207 GPA	30 000 ksi
Modulus ntawm elasticity (@538 degree / 1000 degree F)	159 gpa ua	23 000 ksg
Modulus ntawm elasticity (@204 degree / 400 degree F)	190 GPa	27 500 ksg
Charpy cuam tshuam (V-notch; cua txias los ntawm 1010 degree; 535 degree temper kub)	13.6 J	1 0.0 ft-lb
Charpy cuam tshuam (V-notch; cua txias los ntawm 1010 degree; 650 degree temper kub)	27.1 J	2 0.0 ft-lb
Charpy cuam tshuam (V-notch; cua txias los ntawm 1010 degree; 370 degree temper kub)	33.9 J	25. 0 ft-lb
Machinability (1 feem pua carbon steel)	75.0 - 80.0 feem pua	75.0 - 80.0 feem pua
Poisson tus piv	0.27-0.30	0.27-0.30