1.Dab tsi yog cov khoom siv ntawm 20 # steel?
Teb: Cov khoom siv hluav taws xob ntawm 20 # steel: Lub zog muaj zog ntau dua lossis sib npaug ntawm 245 MPa, Tensile lub zog Ntau dua lossis sib npaug rau 410 MPa, Elongation Ntau dua lossis sib npaug li 25%, nrog lub zog zoo. Cov nqi yuav txawv nrog kev kho cua sov.
2.Dab tsi yog cov kev siv ntawm Q235B steel kav?
Teb: Q235B steel kav yog siv rau hauv cov khoom siv xws li lub tsev thav duab, txuas hniav, xa cov yees, thiab dav dav - lub hom phiaj thauj cov dej hauv qis - cov tshuab siab.
3.Dab tsi yog cov kev siv ntawm 20 # steel kav?
Teb: 20 # steel kav yog siv rau cov khoom siv kho tshuab, cov raj boiler, cov hlab ntsha siab, thiab cov kav dej precision uas yuav tsum tau muaj zog dua thiab tawv.
4.Cov qauv Q235B steel ua li cas?
Teb: Q235B ua raws li Suav tus qauv GB / T 700 thiab zoo ib yam li ASTM A36 thoob ntiaj teb.
5.Cov qauv 20# steel ua raws li cas?
Teb: 20# steel ua raws li Suav tus qauv GB / T 699 thiab zoo ib yam li ASTM A106 Qib B lossis AISI 1020.
