Xov Xwm - Kub-Rolled Hlau Coures: Lub Mainstay ntawm Cov Khoom Lag Luam

Nyob rau niaj hnub ua haujlwm niaj hnub, kub-rolled hlau coil yog cov khoom siv yooj yim, thiab lawv qhov sib txawv me ntsis cuam tshuam rau kev lag luam hauv qab daus. Txawv qauv ntawm kub-rolled steel coils ua si ib lub teb irreplacable txoj haujlwm hauv kev tsim kho, tsheb, thiab lwm yam. Cov hauv qab no yuav tsom rau kev txheeb xyuas qhov kub-rolled steel chev qauv nrog kev ua lag luam siab tshaj plaws thiab lawv cov qauv sib txawv.

Lub zog tseem ceeb: Q235B thiab SS400
Q235B yog feem ntau siv cov khoom siv roj carbon muaj roj carbon ntau hauv Suav teb, nrog cov ntsiab lus carbon, nrog cov ntsiab lus carbon, nrog rau cov ntsiab lus carbon, nrog rau cov pa roj carbon monoxide of Up Nws cov txiaj ntsig muaj txiaj ntsig ≥235MPA thiab tau siv dav hauv kev tsim cov thav duab, Choj txhawb nqa thiab cov khoom siv hluav taws xob. Hauv kev tsim kho kev tsim kho, cov nqaj hlau, cov hlau ua los ntawm Q235B Kub-Rolled Steel Coup rau ntau dua 60%, txhawb nqa pob txha hauv nroog loj.
SS400 yog ib qho hluav taws xob hauv ntiaj teb uas siv hluav taws xob nrog rau Q235b, tab sis Stricter tswj ntawm Sulphur thiab phosphorus impurities thiab zoo dua nto zoo. Nyob rau hauv daim teb ntawm shrbuilding, SS400 kub-rolled coils feem ntau siv rau Hull cov txheej txheem. Nws lub Seasater kev txhim kho yog qhov zoo dua li cov pa roj carbon hlau, kom muaj kev nyab xeeb ntawm cov dej hiav txwv hiav txwv.

Cov Neeg Sawv Cev Muaj Zog Siab: Q345B thiab Q960
Q345B yog qhov qis-alloy high-zog steel nrog 1.0% -1.6% manganese ntxiv, thiab cov txiaj ntsig lub zog yog saum toj no 34pa. Piv nrog Q235B, nws lub zog tau nce li 50%, thaum tswj kev ua kom zoo weldability. Nyob rau hauv Choj engineering, rox girders ua los ntawm Q345B kub-rolled hlau coils tuaj yeem txo qhov hnyav los ntawm 20%, txo cov nqi hauv cov tub rog. Xyoo 2023, kev tsim kho choj hauv tsev yuav haus ntau tshaj 12 lab tons ntawm Q345B kub-rolled coils, accounting rau 45% ntawm tag nrho cov khoom tawm ntawm hom no.
Raws li ib tug neeg sawv cev raug ntawm ultra-siab lub zog steel, Q960 ua tiav lub zog hluav taws xob (ntxiv cov khoom siv voladium, titanium thiab lwm cov khoom siv thiab tswj cov txheej txheem txias. Nyob rau hauv thaj teb ntawm kev tsim tshuab

Tshwj xeeb cov cim: SPHC thiab SAP340
SPHC yog cov khoom lag luam high-end-rolled low-carbon steels. Los ntawm kev txhim kho cov txheej txheem dov los tswj cov nplej loj, qhov elongation ncav ntau tshaj 30%. Hauv kev lag luam hauv tsev, SPHC kub-co coils yog siv los ua cov tsev ua khoom siv tub yees. Nws qhov sib sib zog nqus txheej txheem ua kom ntseeg tau tias tus nqi tsim nyog ntawm cov txheej txheem nkhaus ncaj ncaj rau ntawm 98%. Xyoo 2024, kev noj ntawm SPHC kub-rolled coils hauv lub tsev khoom siv hauv tsev yuav nce li 15% xyoo rau 3.2 lab tons.
Raws li ib qho kev siv hluav taws xob tsim qauv hlau, Sap340 ua tiav qhov sib npaug ntawm lub zog thiab tawv los ntawm kev ntxiv 0.15% -0.25% carbon thiab trace boron. Hauv kev tsim khoom ntawm lub zog hluav taws xob tshiab roj teeb, SELC340 kub-colled coils tuaj yeem tiv taus cov khoom siv hluav taws xob ntau dua 500mpa thiab ua kom tau raws li cov kev xav tau ntawm cov chaw welding. Xyoo 2023, cov feem ntawm cov coil kub ntawm hom no siv hauv kev siv hluav taws xob tshiab tau mus txog 70% ntawm cov roj teeb qauv qauv.

Tus qauv	Yield zog (mpa)	Elongation (%)	Raug Daim Ntawv Teev Lus
Q235b	≥235	≥26	TSEV qauv qauv, kev siv lub tshuab tshwj xeeb
Q345b	≥345	≥21	Txuas hniav, cov hlab ntsha siab
Sphc	≥275	≥30	Tsev Khoom Siv Hauv Tsev, Cov Chaw Pib
Q960	≥960	≥12	Engineering Machinery, cov cuab yeej siv siab