Q: "Q235" hauv Q235 steel phaj txhais li cas?
A: "Q" yog thawj tsab ntawv ntawm "yield zog" hauv pinyin. "235" qhia tias lub zog tawm los ntawm cov hlau phaj yog 235 MPa. Qhov no txhais tau hais tias thaum lub phaj hlau raug kev nyuaj siab ntawm 235 MPa, nws yuav raug cuam tshuam cov yas deformation tseem ceeb.
Q: Cov khoom siv dab tsi yog Q235 steel phaj?
A: Nws belongs rau carbon structural steel thiab yog cov feem ntau dav siv cov qauv steel ua ntej yuav siv dav ntawm tsawg- alloy siab- lub zog steel.
Q: Q235 steel phaj yog dab tsi?
A: Sub-qib suav nrog 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 steel phaj?
A: ① Impact test: Q235A tsis tas yuav muaj qhov kev ntsuam xyuas cuam tshuam, thaum Q235B yuav tsum muaj qhov ntsuas qhov cuam tshuam ntawm 20 degree; ② Deoxidation txoj kev: Q235A feem ntau yog rimmed steel lossis semi-tua steel, thaum Q235B feem ntau yog cov hlau tua, ua rau muaj kev ruaj khov dua.
Q: Tus qauv rau Q235 steel phaj yog dab tsi?
A: Nws ua raws li lub teb chaws tus qauv GB / T 700-2006 "Carbon Structural Steel"