SKT4 alloy cuab yeej steel
cov khoom siv thev naus laus zis
SKT4 alloy cuab yeej steel Nthuav qhia
SKT4 alloy cuab yeej steel yog ib yam ntawm cov pa roj carbon siab thiab siab chromium txias ua hauj lwm cuab yeej steel nrog zoo hnav kuj thiab nruab nrab toughness. Nws cov khoom tseem ceeb suav nrog carbon (C), chromium (Cr), molybdenum (Mo), thiab lwm yam. Cov ntsiab lus no ua ke muab SKT4 kev ua tau zoo.
Qhov zoo thiab cov yam ntxwv ntawm SKT4 alloy cuab yeej steel
SKT4 cuab yeej steel muaj zoo toughness, lub zog thiab siab hnav tsis kam, thiab yog ib tug kub ua hauj lwm tuag steel. Nws cov khoom siv kho tshuab ntawm chav tsev kub thiab 500-600 degree yuav luag zoo ib yam. Thaum rhuab mus rau 500 degree, hardness ntawm HB300 tseem tuaj yeem khaws cia. Vim cov hlau muaj molybdenum, nws tsis rhiab rau temper brittleness. Tom qab maj mam txias los ntawm 600 degree, qhov cuam tshuam toughness tsuas yog txo me ntsis. Haum rau kev tsim txhua yam ntawm cov duab, kev cuam tshuam, kev ua haujlwm kub tsis dhau siab, sab ntev> 400mm loj thiab nruab nrab rauj forging tuag thiab txiav tuag.
Lub ntsiab tsis zoo ntawm SKT4 alloy steel yog raws li nram no
Cov qauv kev coj ua
JIS G4404-2006, EN ISO4957-1999, ISO4957: 1999
Cov khoom xyaw tseem ceeb (%)
Cov pa roj carbon (C) {{0}}.50 ~ 0.60
Silicon (Si) {{0}}.10 ~ 0.40
Manganese (Mn) {0}}.60 ~ 0.90
Chromium (Cr) 0.80 ~ 1.20
Molybdenum (Mo) {0}}.35 ~ 0.55
Nickel (Ni) 1.50 ~ 1.80
Vanadium (V) {0}}.05 ~ 0.15
Phosphorus (P) Tsawg dua lossis sib npaug rau 0.030
Sulfur (S) Tsawg dua lossis sib npaug rau 0.030
Physical/mechanical Properties
Hardness: annealing hardness Tsawg dua los yog sib npaug rau 248HB, quenching hardness Ntau dua los yog sib npaug rau 42HRC.
Kev kho cua sov txheej txheem specification
Quenching: 830-860 degree, roj txias.
