Cov khoom siv li cas Q235 steel sib haum rau?
Q235 steelyog ib qho kev siv carbon structural steel qib hauv Suav GB txuj. Nws cov khoom suav nrog ASTM A36 hauv Tebchaws Meskas thiab SS400 hauv Nyij Pooj.
Dab tsi yog qhov zoo ntawm Q235 ncaj seam welded yeeb nkab?
Qhov zoo ntawmQ235 ncaj seam welded yeeb nkabsuav nrog tus nqi siab -kev ua tau zoo, weldability zoo heev, thiab kev siv dav, ua rau nws haum rau ntau yam kev siv los ntawm kev tsim kho mus rau kev tsim khoom. Nws kuj muaj cov yas zoo, toughness, thiab lub zog, tswj lub zog ntawm qhov kub thiab txias, thiab yooj yim rau kev tsim.
Cov khoom siv dab tsi hauv ASTM tus qauv Q235B steel sib haum rau?
Q235B steel hlauyog tus qauv Suav, sib xws rau ASTM A36 steel hauv Asmeskas tus qauv. Ob leeg yog cov dav dav - lub hom phiaj carbon structural steels nrog cov khoom zoo sib xws thiab tshuaj lom neeg, tab sis lawv qhov tsawg kawg nkaus yield zog, tensile zog, thiab cov tshuaj muaj pes tsawg leeg cov kev txwv txawv me ntsis.
Qhov txawv ntawm Q235A thiab Q235B yog dab tsi?
Qhov sib txawv tseem ceeb ntawm Q235A thiabQ235B steel hlaunyob rau hauv lawv cov tshuaj muaj pes tsawg leeg thiab txhua yam khoom, tshwj xeeb tshaj yog cuam tshuam toughness.Q235Bmuaj cov kev cai nruj dua rau cov tshuaj muaj pes tsawg leeg, nrog qis carbon thiab sulfur cov ntsiab lus, uas ua rau zoo dua toughness thiab kev ua tau zoo ntawm qhov kub thiab txias. Q235A muaj qib siab dua ntawm qee yam impurities thiab tsis tas yuav muaj kev cuam tshuam kev sim, yog li nws feem ntau pheej yig dua.
Qhov txawv ntawm Q345B thiab Q235B yog dab tsi?
Qhov sib txawv tseem ceeb ntawm Q345B thiabQ235Bdag nyob rau hauv lawv lub zog, muaj pes tsawg leeg, thiab kev siv. Q345B yog qhov siab dua -lub zog qis- alloy structural steel nrog qhov tsawg kawg nkaus tawm lub zog txog li 345 MPa, ua rau nws tsim nyog rau kev thov siv xws li txuas hniav thiab cov hlab ntsha siab.Q235Byog cov khoom siv carbon ntau dua nrog lub zog qis dua ntawm 235 MPa, paub txog nws qhov zoo weldability thiab nqi -effectiveness, thiab yog haum rau cov qauv thiab txhua yam khoom.
