JIS G3106 SM490B Carbon thiab Low-alloy High-strength Steel Phaj
cov khoom siv thev naus laus zis
JIS G3106 SM490B Carbon thiab Low-alloy High-strength Steel Phaj Qhia ntxaws qhia
Txuj: JIS G3106 txheem ntau lawm.
Yield zog: tsis tsawg tshaj 490MPa.
Lub zog tensile: tsis tsawg dua 325MPa (tseem muaj cov ntaub ntawv taw qhia tias nws lub zog tensile ntau yog 490-610MPa).
Elongation: yuav tsum ntau dua lossis sib npaug li 21%.
Kev cuam tshuam kub: 20 degree.
Tshuaj muaj pes tsawg leeg:
Carbon (C): Tsawg dua lossis sib npaug rau 0.20%.
Silicon (Si): Tsawg dua lossis sib npaug rau 0.55%.
Manganese (Mn): Tsawg dua lossis sib npaug li 1.60%.
Phosphorus (P) thiab sulfur (S): tsis tshaj 0.035%.
Lwm yam ntxwv
Tsawg kub toughness:
SM490B steel phaj muaj qhov kub thiab txias toughness, haum rau siv nyob rau hauv qhov kub thiab txias ib puag ncig.
Corrosion kuj:
Cov hlau phaj kuj muaj qhov zoo corrosion kuj thiab yog tsim rau siv nyob rau hauv corrosive ib puag ncig xws li dej hiav txwv.
Pickling kev kho mob:
Txhawm rau txhim kho qhov zoo ntawm qhov chaw thiab kev tiv thaiv corrosion ntawm cov hlau, SM490B steel phaj yuav xav tau kev kho mob thaum lub sijhawm tsim khoom.
