Q345B steel yog ib hom qis-alloy high-strength structural steel, lub ntsiab Cheebtsam muaj xws li carbon, silicon, manganese, phosphorus, sulfur thiab lwm yam khoom, tsim nyog rau kev tsim khoom ntawm ntau yam mechanical qhov chaw, engineering lug, choj, ships thiab thiaj li nyob. . Raws li rau lub kaum sab xis steel, nws yog ib hom hlau ua raw khoom, los ntawm kev khoov txias los yog kub dov
Yam ntxwv
1. Lub zog siab: Lub zog tawm ntawm Q345B steel yog 345MPa, lub zog tensile nyob nruab nrab ntawm 470-630MPa, thiab cov khoom siv xws li hnav tsis kam, tensile kuj thiab distortion lub zog yog qhov zoo.
2. Muaj zog corrosion kuj: Q345B steel muaj zoo heev corrosion kuj thiab yuav siv tau nyob rau hauv ntau yam tshuaj thiab Marine ib puag ncig.
3. Zoo weldability: Q345B steel muaj zoo plasticity thiab weldability, thiab tuaj yeem ua tiav thiab txiav los ntawm ntau txoj kev vuam.
4. Tus nqi qis: Tus nqi ntawm Q345B steel yog tus nqi qis, thiab nws tuaj yeem hloov tau ntau qib high-strength steel, yog li nws muaj ntau yam kev cia siab rau hauv ntau yam kev thov.
5. Kev ua tau zoo heev: Q345B steel muaj kev ua haujlwm zoo heev thiab muaj peev xwm ua tau zoo, thiab tuaj yeem txhim kho nws lub zog thiab tawv tom qab kev kho cua sov, tswj dov thiab lwm yam txheej txheem.
Tsis muaj
1. Tshuaj muaj pes tsawg leeg: Cov tshuaj muaj pes tsawg leeg ntawm Q345B steel muaj xws li carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S) thiab lwm yam. Nws cov ntsiab lus yog tswj hwm ntawm 0.12 feem pua -0.20 feem pua , 0.20 feem pua -0.55 feem pua , 1.20 feem pua -1.60 feem pua , Tsawg dua lossis sib npaug li 0.045 feem pua , Tsawg dua lossis sib npaug li 0.045 feem pua (tus qauv GB/T 1591-2018), thiab tseem muaj cov kab ntawm chromium (Cr), npib tsib xee ( Ni) thiab lwm yam.
2. Cov khoom siv tshuab: Cov khoom siv kho tshuab ntawm Q345B steel yog qhov zoo, lub zog tawm los yog feem ntau Zoo dua lossis sib npaug ntawm 345MPa, lub zog tensile feem ntau yog nyob nruab nrab ntawm 470 thiab 630MPa, thiab qhov elongation feem ntau ntau dua lossis sib npaug li 21 feem pua. Cov kev txwv no tuaj yeem cuam tshuam los ntawm yam xws li kev ua cov txheej txheem thiab ntsuas kub.
3. Weldability: Q345B steel muaj qhov zoo weldability thiab tuaj yeem ua tiav thiab txiav siv ntau hom kev sib txuas.
4. Hnav tsis kam: Cov hnav tsis kam ntawm Q345B steel yog qhov zoo, thiab nws tuaj yeem siv rau qee lub sijhawm uas yuav tsum tau tiv taus siab hnav.
Tej teeb meem siv
1. Cov teeb meem zoo: Qee qhov qis qis Q345B steel tej zaum yuav muaj qhov tsis xws luag xws li inclusions, npuas, tawg, thiab lwm yam, uas cuam tshuam rau cov khoom siv thiab kev pab cuam lub neej ntawm steel.
2. Kev tsim lossis kev tsim kho tsis raug: Yog tias qhov tsim lossis kev tsim kho ntawm Q345B steel tsis tsim nyog, nws yuav ua rau muaj teeb meem xws li kev txo qis, kev ua haujlwm tsis ruaj khov, thiab tseem ua rau muaj kev nyab xeeb.
3. Lub zog tsis sib xws: Yog tias cov hlau raug quab yuam tsis sib xws, nws yuav ua rau deformation lossis tawg thiab lwm yam teeb meem.
4. Cov teeb meem Corrosion: Kev siv lub sij hawm ntev ntawm Q345B steel yog raug rau ib puag ncig ntuj, ntuj oxidation thiab sab nraud quab yuam, ua rau nto corrosion, laus thiab qaug zog tawg thiab lwm yam teeb meem, txo lub neej kev pab cuam.
5. Cov teeb meem vuam: Rau vuam Q345B steel, vuam kub yuav tsum tau tswj thiab cov khoom siv vuam tsim nyog yuav tsum raug xaiv, txwv tsis pub yuav muaj teeb meem xws li vuam looseness thiab tawg.
FAQ
1. Hom kev lag luam twg siv lub kaum sab xis steel phaj?
Lub kaum sab xis steel phaj yog feem ntau siv nyob rau hauv ntau yam kev lag luam, nrog rau kev tsim kho, kev tsim khoom, kev thauj mus los, thiab lub zog. Lawv muaj txiaj ntsig tshwj xeeb hauv kev tsim vaj tsev, txuas hniav, thiab lwm yam kev tsim kho vaj tse, nrog rau kev tsim cov tshuab hnyav thiab khoom siv.
2. Kuv yuav khaws thiab tuav lub kaum sab xis steel phaj li cas?
Lub kaum sab xis steel phaj yuav tsum tau muab cia rau hauv qhov chaw qhuav, zoo-ventilated los tiv thaiv corrosion thiab xeb. Lawv yuav tsum tau ua tib zoo saib xyuas kom tsis txhob muaj kev puas tsuaj los yog dabtsi yog khoov, thiab yuav tsum tau muab tso ncaj ncaj kom tsis txhob muaj kev sib tsoo. Thaum thauj lub kaum sab xis steel phaj, lawv yuav tsum tau muab khi kom ruaj ntseg kom tsis txhob zawv zawg lossis txav thaum thauj.
3. Dab tsi yog qhov sib txawv ntawm lub kaum sab xis steel phaj?
Muaj ntau yam sib txawv ntawm lub kaum sab xis steel daim hlau, nrog rau lub kaum sab xis steel phaj, lub kaum sab xis hlau tsis sib npaug, lub kaum sab xis kub dov steel, lub kaum sab xis txias steel phaj, galvanized lub kaum sab xis steel daim hlau, thiab stainless hlau lub kaum sab xis steel daim hlau. Hom lub kaum sab xis steel phaj siv yuav nyob ntawm qhov xav tau tshwj xeeb ntawm qhov project.
Cim npe nrov: q335b lub kaum sab xis steel phaj, Tuam Tshoj q335b lub kaum sab xis steel phaj lwm tus neeg
