ST37-2 structural steel thiab St52-3 yog ob qho kev siv qis-alloy high-strength structural steels. Lawv muaj qee qhov sib txawv ntawm kev ua cov cuab yeej technology thiab qhov zoo.
ST37-2 structural steel yog European tus qauv qis-alloy high-strength structural steel uas feem ntau siv los tsim cov qauv thiab cov khoom siv hauv cov choj, vaj tse, tsheb, nkoj, thiab cov nkoj siab. Nws cov yam ntxwv ua tau zoo xws li weldability thiab processability, nrog rau siab zog thiab toughness nyob rau hauv ntau yam kub thiab corrosive ib puag ncig. Lub zog theem thiab vuam cov khoom ntawm ST37-2 steel ua rau nws zoo tagnrho rau kev tsim cov khoom siv loj thiab cov khoom tuab-walled.
Nyob rau hauv sib piv, St52-3 kuj yog ib tug low-alloy high-strength structural steel uas yog dav siv nyob rau hauv ships, choj, kev tsim kho thiab hnyav machinery. Cov yam ntxwv tseem ceeb ntawm St52-3 steel muaj xws li kev ua kom txias txias thiab vuam cov khoom, nrog rau zoo toughness thiab brittle fracture kuj nyob rau hauv qis kub ib puag ncig. Lub zog thiab tawv ntawm St52-3 steel ua rau nws tsim nyog rau kev tsim cov khoom uas yuav tsum tau tiv taus cov khoom hnyav thiab cuam tshuam, xws li lub nkoj decks thiab cov qauv ntawm lub nkoj.
Ob leeg ST37-2 cov qauv hlau thiab St52-3 steel muaj kev ua haujlwm siab thiab weldability raws li kev siv thev naus laus zis, tab sis lawv cov ntawv thov thiab cov txheej txheem ua haujlwm txawv me ntsis. ST37-2 steel yog tsim nyog rau kev tsim cov qauv loj thiab cov phab ntsa tuab, thaum St52-3 steel yog dav siv hauv nkoj thiab cov tshuab hnyav. Tsis tas li ntawd, muaj qee qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab thiab kev ua haujlwm vuam ntawm ob lub hlau no. Nws yog ib qho tsim nyog los xaiv cov hlau tsim nyog raws li kev thov tshwj xeeb scenario.
Ntxiv nrog rau ST37-2 thiab St52-3, muaj ntau ntau lwm yam uas tsis tshua muaj hlau alloy high-strength structural steel, xws li SM400A, SM490YB, thiab lwm yam. Cov hlau no muaj qee qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg, mechanical cov khoom, kev siv technology thiab daim ntawv thov teb, thiab lawv yuav tsum raug xaiv raws li cov kev xav tau tshwj xeeb. Piv txwv li, SM400A yog ib qho kev siv ntau lub tsev steel nrog zoo txias dabtsi yog khoov thiab vuam zog, thiab tsim nyog rau kev tsim cov qauv tsev thiab cov tshuab hnyav; thaum SM490YB yog lub zog muaj zog qis-alloy structural steel nrog zoo txias-bending zog thiab vuam zog. Kev qaug zog thiab kev tiv thaiv corrosion, haum rau kev tsim cov qauv thiab cov khoom siv hauv cov txuas hniav, tsheb, nkoj thiab lwm yam.
Hauv luv luv, ST37-2 structural steel thiab St52-3 steel muaj qee qhov sib txawv ntawm kev ua cov yam ntxwv thiab qhov zoo. Nws yog ib qho tsim nyog los xaiv cov hlau tsim nyog raws li kev thov tshwj xeeb scenario. Nyob rau tib lub sijhawm, ntau hom kev sib txawv ntawm cov hlau tsis tshua muaj siab-zog steels kuj muaj qee qhov sib txawv ntawm cov tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, kev siv thev naus laus zis thiab daim ntawv thov kev lag luam, thiab ntau yam yuav tsum tau xav txog kev xaiv.
