1. Kev faib tawm ntawm cov hlau phaj (xws li sawb hlau):

1. Kev faib tawm los ntawm tuab: (1) phaj nyias (2) phaj nruab nrab (3) phaj tuab (4) phaj tuab ntxiv

2. Muab faib los ntawm txoj kev tsim khoom: (1) Kub dov steel phaj (2) Cold rolled steel phaj

3. Kev faib tawm los ntawm cov yam ntxwv saum npoo: (1) Galvanized ntawv (kub-dip galvanized ntawv, electro-galvanized ntawv) (2) Tin-plated ntawv (3) Composite steel ntawv (4) Xim coated steel ntawv

4. Kev faib tawm los ntawm kev siv: (1) Choj steel phaj (2) Boiler steel phaj (3) Shipbuilding steel phaj (4) Armor steel phaj (5) Tsheb steel phaj (6) ru tsev steel phaj (7) steel phaj (8) ) Hluav taws xob hlau phaj (silicon steel ntawv) (9) Caij nplooj ntoos hlav steel phaj (10) Lwm yam

2. Kub dov:

Pickling coils Kub-dov coils Cov qauv steel daim hlau Automotive steel daim hlau Shipbuilding steel daim hlau Choj steel daim hlau Boiler steel daim hlau Thawv steel daim hlau Corrosion-resistant daim hlau Hloov txias nrog tshav kub Baosteel lub dav thiab hnyav daim hlau Hluav taws kub-resistant thiab weathering hlau

3. Txias yob:

Cov Rolled Rolled CoilsCold-dov coilsElectrogalvanized los xij GB tin-plated WISCO silicon steel siv

4. Boiling steel phaj thiab tua steel phaj:

1. Boiling steel phaj yog steel phaj kub dov los ntawm cov pa roj carbon zoo tib yam steel boiling hlau.Boiling steel yog ib hom hlau uas tsis tiav deoxidation.Tsuas yog qee qhov ntawm deoxidizer tsis muaj zog yog siv los deoxidize molten steel.Cov ntsiab lus oxygen ntawm molten steel yog qhov siab.Thaum cov hlau molten raug txhaj rau hauv cov pwm pwm, cov pa roj carbon thiab cov pa oxygen tuaj yeem tsim cov roj ntau, ua rau cov hlau molten boil., Cov hlau npau npau tau txais nws lub npe los ntawm qhov no.Cov hlau rimmed muaj cov ntsiab lus carbon tsawg, thiab vim tias nws tsis siv ferrosilicon rau deoxidation, cov ntsiab lus silicon hauv cov hlau kuj tsawg (Si <0.07%).Lub txheej txheej ntawm boiling steel yog crystallized nyob rau hauv cov xwm txheej ntawm nruj agitation ntawm molten hlau los ntawm boiling, yog li cov txheej saum npoo yog huv si thiab ntom, nrog zoo nto zoo, zoo plasticity thiab stamping zog, tsis muaj loj concentrated shrinkage qhov, thiab txiav lub taub hau. Tus nqi ntawm cov rimmed steel yog yooj yim, kev noj cov ferroalloy yog me me, thiab tus nqi ntawm cov hlau yog tsawg.Boiling steel phaj yog dav siv nyob rau hauv kev tsim khoom ntawm ntau yam stamping qhov chaw, kev tsim kho thiab engineering cov qauv thiab qee qhov tseem ceeb ntawm lub tshuab ua haujlwm.Txawm li cas los xij, muaj ntau yam impurities nyob rau hauv cov tub ntxhais ntawm boiling steel, kev sib cais yog hnyav, cov qauv tsis ntom, thiab cov khoom siv tshuab tsis sib xws.Nyob rau tib lub sijhawm, vim muaj roj cov ntsiab lus hauv cov hlau, qhov toughness tsawg, qhov txias brittleness thiab aging rhiab heev yog qhov loj, thiab vuam kev ua tau zoo kuj tsis zoo.Yog li ntawd, cov phaj kub npau npau tsis haum rau kev tsim cov khoom siv welded thiab lwm cov qauv tseem ceeb uas cuam tshuam cov loads thiab ua haujlwm nyob rau hauv qhov kub thiab txias.

2. Killed steel phaj yog steel phaj ua los ntawm cov pa roj carbon zoo tib yam steel tua steel los ntawm kub dov.Cov hlau tua yog cov hlau deoxidized tag nrho.Lub molten hlau yog tag nrho deoxidized nrog ferromanganese, ferrosilicon thiab txhuas ua ntej pouring.Cov pa oxygen cov ntsiab lus ntawm cov hlau molten yog tsawg (feem ntau 0.002-0.003%), thiab cov hlau molten tseem nyob twj ywm hauv cov pwm pwm.Tsis muaj qhov tshwm sim npau taws, yog li lub npe ntawm cov hlau tua.Nyob rau hauv ib txwm ua hauj lwm tej yam kev mob, tsis muaj npuas nyob rau hauv cov hlau tua, thiab cov qauv yog uniform thiab compact;vim muaj cov pa oxygen tsawg, cov hlau tsis tshua muaj oxide inclusions, siab purity, tsis txias brittleness thiab aging nyiam;Nyob rau tib lub sijhawm, kev sib cais ntawm cov hlau tua yog me me, qhov kev ua tau zoo sib xws thiab qhov zoo yog siab.Qhov tsis zoo ntawm cov hlau tua yog cov concentrated shrinkage, qis tawm los thiab tus nqi siab.Yog li ntawd, cov hlau tua yog tsuas yog siv rau cov khoom uas tiv taus qhov kub thiab txias, cov qauv welded, thiab lwm yam khoom uas yuav tsum tau muaj zog.

Tsawg-alloy steel phaj yog ob leeg tua thiab semi-tua steel daim hlau.Vim nws lub zog siab thiab kev ua tau zoo dua, nws tuaj yeem txuag tau ntau cov hlau thiab txo qhov hnyav ntawm cov qauv, nws daim ntawv thov tau dhau los ua ntau thiab ntau dua.

5. High-quality carbon structural steel phaj:

High-quality carbon structural steel yog carbon steel nrog cov ntsiab lus carbon tsawg dua 0.8%.Cov hlau no muaj tsawg dua sulfur, phosphorus thiab non-metallic inclusions tshaj li carbon structural steel, thiab muaj zoo mechanical zog.

Cov pa roj carbon zoo zoo tuaj yeem muab faib ua peb pawg raws li cov ntsiab lus sib txawv: carbon steel qis (C≤0.25%), nruab nrab-carbon steel (C yog 0.25-0.6%) thiab high-carbon steel (C> 0.6). %).

Raws li cov ntsiab lus ntawm manganese sib txawv, cov khoom siv roj carbon zoo tuaj yeem muab faib ua ob pawg: cov ntsiab lus manganese ib txwm (manganese cov ntsiab lus 0.25%-0.8%) thiab cov ntsiab lus manganese ntau dua (manganese cov ntsiab lus 0.70% -1.20%).Cov tom kawg muaj zoo dua mechanics.Kev ua tau zoo thiab kev ua haujlwm.

1. High-quality carbon structural steel kub dov ntawv thiab steel sawb High-quality carbon structural steel kub dov nyias steel ntawv thiab steel sawb yog siv nyob rau hauv lub tsheb, aviation kev lag luam thiab lwm yam sectors.Nws cov qib steel yog rimmed steel: 08F, 10F, 15F;Cov hlau tua: 08, 08AL, 10, 15, 20, 25, 30, 35, 40, 45, 50. Cov pa roj carbon tsawg tsawg hauv qab 25 thiab 25, 30 thiab saum toj no 30 yog nruab nrab carbon steel phaj.

2. High-quality carbon structural steel kub dov tuab steel daim hlau thiab dav hlau strips High-quality carbon structural steel kub dov tuab steel daim hlau thiab dav hlau strips yog siv nyob rau hauv ntau yam mechanical structural qhov chaw.Nws cov qib steel yog cov hlau tsis tshua muaj xws li: 05F, 08F, 08, 10F, 10, 15F, 15, 20F, 20, 25, 20Mn, 25Mn, thiab lwm yam;nruab nrab carbon steels muaj xws li: 30, 35, 40, 45, 50, 55, 60, 30Mn, 40Mn, 50Mn, 60Mn, thiab lwm yam;high carbon steel muaj xws li: 65, 70, 65Mn, thiab lwm yam.

6. Tshwj xeeb qauv steel phaj:

1. Hlau phaj rau lub nkoj siab: Siv peev R los qhia qhov kawg ntawm qib.Qib tuaj yeem qhia tau los ntawm qhov taw tes tawm los lossis cov ntsiab lus carbon lossis cov ntsiab lus alloying.Xws li: Q345R, Q345 yog qhov taw qhia tawm.Lwm qhov piv txwv: 20R, 16MnR, 15MnVR, 15MnVNR, 8MnMoNbR, MnNiMoNbR, 15CrMoR, thiab lwm yam yog sawv cev los ntawm cov ntsiab lus carbon lossis alloying ntsiab lus.

2. Hlau phaj rau vuam lub tog raj kheej roj: Siv peev HP los qhia qhov kawg ntawm qib, thiab nws qib tuaj yeem qhia tau los ntawm qhov taw tes tawm, xws li: Q295HP, Q345HP;nws kuj tuaj yeem qhia nrog cov ntsiab lus alloying, xws li: 16MnREHP.

3. Hlau phaj rau boiler: Siv cov ntawv qis g los qhia qhov kawg ntawm lub npe hom.Nws qib tuaj yeem qhia tau los ntawm qhov taw qhia tawm, xws li: Q390g;Nws kuj tuaj yeem qhia tau los ntawm cov ntsiab lus carbon lossis alloying, xws li 20g, 22Mng, 15CrMog, 16Mng, 19Mng, 13MnNiCrMoNbg, 12Cr1MoVg, thiab lwm yam.

4. Cov ntawv hlau rau cov txuas hniav: Siv cov ntawv me me los qhia qhov kawg ntawm qib, xws li Q420q, 16Mnq, 14MnNbq, thiab lwm yam.

5. Hlau phaj rau tsheb nqaj hlau: Siv peev L los qhia qhov kawg ntawm qib, xws li 09MnREL, 06TiL, 08TiL, 10TiL, 09SiVL, 16MnL, 16MnREL, thiab lwm yam.