Q345R yog ib hom uas tsis tshua muaj alloy high-strength steel phaj nrog zoo kev ua tau zoo thiab corrosion kuj, uas yog dav siv nyob rau hauv petrochemical kev lag luam, siab hlab ntsha, txuas hniav thiab lwm yam teb.
Cov khoom siv kho tshuab ntawm Q345R feem ntau suav nrog lub zog tensile, yield zog, elongation thiab cuam tshuam toughness thiab lwm yam tsis. Ntawm lawv, qhov ntau ntawm tensile lub zog yog 490 ~ 620MPa, qhov ntau ntawm cov khoom muaj zog yog ntau dua lossis sib npaug rau 345MPa, qhov ntau ntawm elongation yog ntau dua lossis sib npaug li 19%, thiab qhov sib txawv ntawm qhov cuam tshuam toughness yog ntau dua lossis sib npaug. rau 47J/cm^2.
Nrog rau kev ua tau zoo heev thiab kev tiv thaiv corrosion, Q345R tau siv dav hauv ntau qhov chaw. Hauv thaj chaw petrochemical, Q345R tuaj yeem siv los tsim cov hlab ntsha siab, lub tank cia thiab lwm yam khoom siv; nyob rau hauv qhov chaw ntawm cov choj, Q345R tuaj yeem siv los tsim cov khoom siv choj; nyob rau hauv lub tshav pob hluav taws xob, Q345R tuaj yeem siv los tsim cov boilers siab thiab cov hlab ntsha siab; nyob rau hauv kev tsim kho, Q345R tuaj yeem siv los tsim cov khoom siv thiab cov khoom siv ntxiv rau cov tsev siab siab; Hauv kev tsim tsheb, Q345R tuaj yeem siv los tsim tsheb Hauv kev tsim tsheb, Q345R tuaj yeem siv los tsim cov tsheb.
