Q345 steel yog dab tsi?
Tsawg- alloy siab- lub zog cov qauv hlau, yav tas los xaiv 16Mn, nrog lub zog tawm los Ntau dua lossis sib npaug rau 345MPa.
Lub npe txhais li cas?
Q=Yield zog, 345=Yam tsawg kawg nkaus yield zog (MPa), ua raws li qib zoo A/B/C/D/E.
Nws ua raws li tus qauv twg?
National Standard GB/T 1591-2018 (hloov cov qub version).
Qhov txawv ntawm Q345 thiab Q235 yog dab tsi?
Q345 muaj lub zog tawm los ntau dua (345 vs 235MPa), cov ntsiab lus alloying ntau dua, zoo dua qis - kub toughness, thiab tus nqi siab dua me ntsis.
Kev sib raug zoo ntawm Q355 thiab Q345 yog dab tsi?
Q355 yog ib qho kev hloov kho tshiab rau Q345, nrog lub zog tawm los Ntau dua lossis sib npaug ntawm 355MPa, thiab zoo dua qis dua - kub toughness thiab weldability.