Q: Q355 phaj yog dab tsi?
A: Q355 phaj yog qis- alloy siab- lub zog steel phaj hauv Suav qauv, nrog rau qhov tsawg kawg nkaus lub zog ntawm 355 MPa. Nws yog dav siv nyob rau hauv engineering lug vim nws zoo heev mechanical zog thiab weldability.
Q: Lub teb chaws Suav tus qauv rau Q355 phaj yog dab tsi?
A: Tus qauv tseem ceeb yog GB / T 1591-2018Tsawg- alloy siab - lub zog steels. Rau cov ntawv kub- dov, nws kuj ua raws li GB/T 3274-2017.
Q: Dab tsi yog cov khoom tseem ceeb ntawm Q355 steel?
A: Cov ntsiab lus tseem ceeb (feem ntau) yog: C ≤ 0.20%, Si ≤ 1.00%, Mn ≤ 1.60%, P ≤ 0.035%, S ≤ 0.035%. Microalloy ntsiab xws li Nb, V, Ti tuaj yeem ntxiv raws li qhov yuav tsum tau ua los txhim kho lub zog.
Q: Q355 steel puas muaj nickel lossis chromium?
A: Tsis yog, Q355 yog qhov qis - alloy steel yam tsis txhob txwm ntxiv Ni lossis Cr. Yog tias cov neeg siv khoom xav tau corrosion-cov khoom tiv taus, peb tuaj yeem pom zoo rau lwm qib xws li huab cua hlau.
Q: Qhov txawv ntawm Q355 thiab Q235 steel phaj yog dab tsi?
A: Qhov sib txawv loj tshaj plaws yog lub zog tawm los: Q355 (355 MPa) siab dua Q235 (235 MPa). Q355 muaj cov cuab yeej zoo dua qub, tuaj yeem txo qhov tuab ntawm cov khoom siv, thiab txuag cov ntaub ntawv. Q235 yog tsim rau cov qauv dav dav, thaum Q355 yog rau siab - zog yuav tsum tau.