Q: "Q235" hauv Q235 steel kauj txhais li cas?
A: "Q" yog thawj tsab ntawv ntawm tus pinyin rau "yield zog," thiab 235 sawv cev rau cov nqi zog ntawm cov hlau, piv txwv li, yield zog ≥ 235 MPa.
Q: Hom hlau twg yog Q235 steel kauj?
A: Nws belongs rau carbon structural steel. Nws cov sulfur thiab phosphorus cov ntsiab lus yog me ntsis siab dua qhov siab - zoo carbon structural steel. Cov txheej txheem smelting yog qhov yooj yim, uas ua rau cov nqi qis dua.
Q: Q235 steel kauj yog dab tsi?
A: Feem ntau sub-qib yog Q235A, Q235B, Q235C, thiab Q235D. Qhov sib txawv tseem ceeb yog nyob rau hauv cov kev ntsuas cuam tshuam thiab cov txheej txheem deoxidation.
Q: Dab tsi yog qhov txawv ntawm Q235A thiab Q235B?
A: ① Impact test: Q235A tsis tas yuav muaj qhov kev sim cuam tshuam; Q235B yuav tsum muaj chav ntsuas kub (20 degree) cuam tshuam. ② Deoxidation txoj kev: Q235A feem ntau yog rimmed steel lossis semi-tua steel; Q235B feem ntau yog tua cov hlau, nrog rau cov khoom ruaj khov dua.
Lus Nug: Lub teb chaws tus qauv twg Q235 steel coil ua raws li?
Teb: Nws ua raws li lub teb chaws tus qauv GB/T 700-2006 "Carbon Structural Steel". Qhov sib txawv ntawm qhov sib txawv ntawm cov kauj yuav tsum ua raws li GB / T 709-2019 "Dimensions, Shape, Weight and Permissible Deviations of Hot-Rolled Steel Phaj thiab Strips".