Q345 Cov Khoom Siv Neeg Kho Tshuab

Q345 Cov Khoom Siv Neeg Kho Tshuab
Q345 yog qhov qis -} Alloy {2} {}}}} Lub zog Steel "(GB / T 1591-2018). Nws cov cuab yeej ua haujlwm yog cov ntsuas ntawm cov khoom siv lub zog, ductility, thiab kev txiav txim siab, thiab kev txiav txim siab ncaj qha, cov cuab yeej siv hlau. Cov hauv qab no qhia txog nws cov khoom siv hauv kev nthuav dav los ntawm peb qhov tseem ceeb: tensile lub zog, cuam tshuam lub zog, sib xyaw nrog cov yam ntxwv ntawm cov yam ntxwv ntawm kev ua tau zoo:
I. Core neeg kho tshuab (raws li GB / T 1591-2018)
Cov cuab yeej ua haujlwm ntawm Q345 yuav tsum ua kom tau raws li "lub zog yuav tsum tau + ductility / tawv txuam" cov qauv. Cov lus qhia tshwj xeeb yuav sib txawv me ntsis rau cov thickness ntawm steel / profiles vim muaj cov txheej txheem dov. Cov ntsiab lus tseem ceeb yog raws li hauv qab no:
1. Tensile cov khoom (tus tseem ceeb tshaj plaws thiab kev ntsuas ducator)
Cov Khoom Siv Tensile raug ntsuas los ntawm Tensile sim thiab cuam tshuam cov khoom siv muaj peev xwm tiv thaiv tensile tsis ua haujlwm. Cov cim qhia tau muab cov paib lub zog (Rel), tensile lub zog (RM), thiab elongation tom qab pob txha lov (a).