Cov khoom xaiv rau cov qauv siv hlau yog cov txheej txheem uas muaj kev nkag siab, kev tsim kho cov khoom siv kho, thiab kev hloov kho ib puag ncig, thiab kev txhim kho ib puag ncig. Cov hauv qab no yog ntau hom steel qauv tsim tsev thiab lawv cov yam ntxwv:
Carbon steel: Cov pa roj carbon steel yog cov hlau uas muaj cov pa roj carbon ntau, uas muaj cov vuam zoo, ua haujlwm tau zoo thiab raug nqi. Nws yog feem ntau siv rau hauv kev tsim cov tsev tsim khoom xws li txuas hniav, factories, warehouses, nrog rau hauv kev siv tshuab thiab khoom siv thiab tsheb.
Alloy Steel: Alloy Steel Txhim kho lub zog thiab corrosion tsis kam los ntawm kev ntxiv lwm cov ntsiab lus (xws li chromium, molybdenum, npib tsib xee, thiab lwm yam). Nws muaj qhov zoo ntawm lub zog siab, siab ua tau zoo thiab muaj kev kub siab ntau, thiab lwm yam kev tsim hluav taws xob uas xav tau walland siab thiab corrosion tsis kam.
Stainless hlau: Stainless hlau muaj cov hlwv uas zoo heev thiab kev ua kom zoo nkauj, thaum tsis txaus siab rau qhov kub thiab yooj yim. Nws feem ntau siv nyob rau hauv kev tsim cov tuam tsev siab, dai kom zoo nkauj, chav ua haujlwm thiab lwm thaj teb.
Carbon structural steel los yog low-alloy high-strength structural steel ntawm qib Q235, Q345, Q390, Q420, Q460 : Cov ntaub ntawv no feem ntau siv rau lub ntsiab load-bearing qhov chaw ntawm steel lug, xws li kab, kab, trusses, thiab lwm yam. Lawv qhov zoo yuav tsum ua raws li cov qauv hauv tebchaws "Carbon Structural Steel" GB / T 700 thiab "Low-alloy High-strength Structural Steel" GB / T 1591.
Weathering structural steel : Weathering structural steel ntawm qib Q235nh, Q355nh thiab Q415nh yog tsim rau cov qauv nyob rau hauv cov cheeb tsam raug nrog tshwj xeeb yuav tsum tau rau corrosion kuj. Lawv qhov zoo yuav tsum ua raws li lub teb chaws tus qauv "Weathering Structural Steel" GB / T 4171.
Marine Weathering Txheej txheem Q235Nha, Q35Snha, Q415nha yog qhov tsim nyog rau cov khoom lag luam marine lossis chaw ib puag ncig. Nws qhov zoo yuav tsum ua raws li cov kev cai ntawm lub teb chaws tus qauv "huab cua huab cua" GB / T 333974.
Hluav taws kub-resistant structural steel : xws li Q235fth, Q345fth thiab Q390fth qib ntawm hluav taws-resistant structural steel, uas muaj zoo kub kuj thiab haum rau cov chaw uas muaj hluav taws kub txaus ntshai. Nws qhov zoo yuav tsum ua raws li cov kev cai ntawm lub teb chaws tus qauv "Fire-resistant Structural Steel" GB / T 33975.
Anustenitic Stainless hlau: xws li 06cr19ni10, 06cr17NI2NI thiab lwm qib ntawm Austenitic Stainless hlau, uas haum rau load-cov kabmob qauv ntawm cov qauv hlau stainless.