ASTM A516 Gr.70N siab nkoj steel phaj
Kev cuam tshuam siab-cov ntawv tiv thaiv tshwj xeeb tsim los rau cov roj av, tshuaj lom neeg thiab boiler kev lag luam
Thaum muas A516GR70N siab lub nkoj steel daim hlau, cov neeg yuav khoom muaj kev txhawj xeeb tshaj plaws txog kev tsis tau txais cov ntaub ntawv nrog kev ua haujlwm tsis zoo, uas tuaj yeem ua rau tawg thaum vuam lossis ua tsis tau raws li qhov yuav tsum tau ua kom muaj zog hauv qhov qis - qhov kub thiab txias.
Niaj hnub no, qhov kuv tab tom nthuav qhia rau koj tsis yog tsuas yog A516GR70N steel daim hlau uas ua raws li ASTM cov qauv, tab sis kuj yog ib qho kev daws teeb meem tshwj xeeb uas tsim los rau "raws li -forged state" thiab "sulfur-hydrogen resistant ib puag ncig". Txawm hais tias koj yuav tsum tsim lub tank loj LNG lossis xa tawm mus rau Middle East kom siab - cov khoom siv roj thiab roj, peb cov khoom tuaj yeem muab kev lees paub zoo rau koj.
"Tseem hu ua A516 Gr70, dab tsi yog qhov txawv rau koj?"
Qhov tseem ceeb nyob hauv "N (normalizing)" thiab "hydrogen{0}}induced cracking (HIC) resistance performance"
Ib qho yooj yim piav qhia ntawm "N" (normalizing)
Yog hais tias tus A516 Gr70 zoo tib yam tsis raug rau normalizing kev kho mob, cov "veins" (crystalline qauv) nyob rau hauv nws yuav ua tsis taus. Peb A516GR70N tau dhau los ua kev kho cua sov hauv lub qhov cub kom zoo, uas coj tau ob qho txiaj ntsig loj:
Tshem tawm kev ntxhov siab sab hauv: Thaum lub sij hawm laser txiav los yog trimming, cov ntaub ntawv tsis tshua muaj deform.
Grain refinement: Ib yam li cov xuab zeb zoo yog denser dua coarse xuab zeb, cov nplej ua kom zoo ua rau cov phaj hlau tuav nws cov tawv tawv txawm tias qhov kub thiab txias.
Anti-hydrogen-induced cracking (HIC) kev ua tau zoo
Peb tuaj yeem muab HIC (hydrogen{0}}induced cracking) thiab SSC (sulfide stress corrosion) cov ntaub ntawv tshuaj xyuas. Los ntawm kev tswj nruj ntawm impurities thiab tshwj xeeb micro-alloying kev kho mob, qhov tawg rhiab heev npaum li cas (CSR) ntawm peb cov hlau phaj yog zero nyob rau hauv lub NACE standard tov kev ntsuam xyuas.
Kev lav zoo
Los ntawm steelmaking mus rau dov, txhua lub phaj hlau muaj nws tus kheej lub tshuab hluav taws xob. Ib yam li ib tus neeg daim npav ID, los ntawm tus lej ntawm lub tshuab hluav taws xob, ib tus tuaj yeem paub thaum twg nws tau tsim thiab nws cov tshuaj muaj pes tsawg leeg yog dab tsi.
Tau txais tus nqi zoo tshaj tam sim
Lub npe: Tshwj xeeb Carbon Steel Phaj rau Nruab Nrab / Tsawg Kub Siab Siab
Txuj: ASTM A516 / ASME SA-516 (ob daim ntawv pov thawj)
Cov lus piav qhia Suffix (Cov Lus Qhia Tseem Ceeb): Tus "N" sawv cev rau Normalized (kev kho cua sov). Hauv cov ntsiab lus yooj yim, nws zoo li "kev cob qhia" rau cov hlau. Los ntawm normalization, cov nplej sab hauv ntawm cov hlau ua finer thiab ntau tusyees faib, thiab nws tsis tshua muaj nkig ntawm qhov kub thiab txias.
01
Standard specification ntau yam
Thickness: 8mm - 150mm (Ceeb Toom: Saum toj no 150mm yog suav tias yog ib daim phaj tuab heev. Tus nqi yuav sib tham raws li qhov kev thov.)
Dav: 1500mm - 4000mm
Ntev: 6000mm - 18000mm
Kev xa khoom raws li txoj cai: Normalizing (N) - Qhov no yog lub ntsiab lus tseem ceeb uas peb hais txog thiab nws yog tus nqi tseem ceeb ntawm lub cim "N".
02
Tshuaj muaj pes tsawg leeg
Carbon (C): Tsawg dua lossis sib npaug li 0.30% -- Weld-friendly design. Cov ntsiab lus carbon yog tswj hwm nruj, uas txhais tau hais tias thaum lub sij hawm vuam ntawm qhov chaw, koj yuav tsis tshua ntsib cov kab nrib pleb thiab tuaj yeem txo tus nqi ntawm kev rov ua haujlwm dua.
Sulfur (S) & Phosphorus (P): Tsawg dua lossis sib npaug li 0.035% (tuaj yeem qis dua) - Ua kom huv huv. Sulfur zoo li ib qho " impurity" hauv hlau. Qhov qis dua yog tswj tau, qhov ntau txhim khu kev qha ntawm daim ntawv yuav yog thaum lub sij hawm txuas ntxiv thiab kev tsim cov txheej txheem.
03
Mechanical zog
Tensile zog: 485 - 620 MPa (sib npaug rau kwv yees li 5 tons ntawm tensile quab yuam ib square centimeter ua ntej tawg)
Yield zog: Ntau dua los yog sib npaug rau 260 MPa
Impact toughness: Nov yog lub zog ntawm N series! Peb feem ntau lav -30℃lossis txawm -46℃qis-kub qhov cuam tshuam (ntev / ntsug), nrog tus nqi ntawm 34J lossis siab dua, kom ntseeg tau tias cov cuab yeej tseem ruaj khov hauv thaj chaw txias.
Quality Assurance
Cov kws tshaj lij kev muag khoom steel
Kev xeem ntawv pov thawj thiab ntawv pov thawj
EN 10204 3.2 Hom Kev Pom Zoo (cov ntawv pov thawj muab los ntawm kev tso cai thib peb- cov koom haum xws li BV, SGS, Lloyd's).
Kev xeem ntawv pov thawj thiab ntawv pov thawj
Kev kuaj ultrasonic: Sab hauv qhov tsis xws luag tuaj yeem raug tshuaj xyuas raws li SA-578 C lossis E cov qauv kom ntseeg tau tias tsis muaj qhov me me "kav" lossis "pores" hauv cov phaj hlau.
Kev xeem ntawv pov thawj thiab ntawv pov thawj
Batch impact test: Peb tsis tsuas yog ua cov kev sim ntawm ib lub rooj tsavxwm nkaus xwb, tab sis kuj tseem txhawb nqa kev ua batch poob- qhov ntsuas qhov hnyav kom ntseeg tau tias kev ua haujlwm ruaj khov hauv batch.
Ntim thiab Logistics
Kev kho deg: Lub neej ntawd lub xeev yog xim dub matte tiav. Nws tuaj yeem kho nrog sandblasting lossis pleev xim nrog primer raws li qhov yuav tsum tau ua kom tsis txhob xeb thaum lub sij hawm ntev - shipping.
Cov lus qhia txog kev thauj mus los: Rau cov phiaj dav dav thiab tuab, muab cov ncauj lus kom ntxaws txog kev ntim khoom lossis cov khoom thauj khoom thauj cov lus pom zoo kom ntseeg tau tias cov khoom tuaj txog nyab xeeb.
Daim ntawv thov scenario tsom xam
Sai dua - nws yuav xaiv cov ntaub ntawv tsim nyog rau koj
Cov roj av suab puam hauv Middle East
Cov neeg siv khoom yuav tsum tau xaj ib pawg ntawm desulfurization towers thiab roj -gas separators.
Vim muaj cov ntsiab lus sulfur siab nyob rau hauv cov roj crude hauv zos, cov thawv ntim zoo tib yam yuav corrode thiab siv tsis tau li ntawm 3 txog 5 xyoos. Peb A516GR70N (HIC) muaj kev tiv thaiv zoo tshaj -sulfur kev ua tau zoo thiab tau raug xaiv los ua qhov kev xaiv zoo tshaj plaws rau txoj haujlwm no, pab tus tswv kom ntev lub neej ntawm cov khoom siv.
Russia lub liquefied natural gas project
Nyob rau hauv ib qho chaw txias heev ntawm ib ncig ntawm 40 degrees Celsius, cov pa roj carbon zoo tib yam yuav tawg thaum muaj kev cuam tshuam.
Tom qab ua haujlwm zoo li qub, A516GR70N tswj tau zoo heev qis - qhov kub thiab txias cuam tshuam, uas yog siv los tsim cov propane cia tso tsheb hlau luam thiab cov cua kub exchanger plhaub, ua kom muaj kev nyab xeeb hauv cov dej khov thiab cov dej khov.
Tau txais cov lus tshaj tawm tshiab hauv 24 teev
Vim li cas thiaj tiv tauj peb tam sim no?
Npaj Tshuag: Cov tuab tuab (8mm - 50mm) muaj cov khoom ntim ntau tshaj 2,000 tons, thiab kev pabcuam txiav thiab muag khoom tau txais kev txhawb nqa.
Kev xa khoom ncaj qha los ntawm steel mills: Peb muaj sijhawm ntev - daim ntawv cog lus nrog rau pem hauv ntej - kab steel mills, ua kom cov nqi sib tw thiab lav lub sijhawm xa khoom.
Customized service: Txawm hais tias nws tau kho -ntev txiav lossis kev ua haujlwm tshwj xeeb (HIC), ib tus email yuav muab cov lus teb rau kev siv.
ib - nres kev daws teeb meem
pab neeg tshaj lij
siab zoo
peb cov neeg koom tes
Peb ntseeg los ntawm
Kev ntsuas tus neeg siv
Mr. Lio
Niam Helen
Mr. aqeel
FAQ
01.Dab tsi yog qhov tsawg kawg nkaus txiav txim kom muaj nuj nqis (MOQ) thiab lub sijhawm ua haujlwm rau ASTM A516 Gr70N steel daim hlau?
02.Vim li cas A516 Qib 70 thiaj li yuav tsum tau txiav txim hauv "Normalized" (N) mob?
Thaum ASTM A516 tso cai rau "Raws li-Rolled" mob rau daim hlau nyias, xajA516 G70Nguarantees cov hlau tau undergone Normalizing tshav kub kho. Cov txheej txheem no refines lub grain qauv, uas yog ib qho tseem ceeb rau:
Stable Impact Toughness:Ua kom ntseeg tau qhov kev ua tau zoo ntawm qhov kub thiab txias (xws li -30℃lossis -46 degree).
Uniformity:Tshem tawm cov kev ntxhov siab sab hauv kom zoo dua vuam thiab sib sau.
Feem ntau cov hlab ntsha siab tsim tshwj xeeb rau "N" mob rau kev nyab xeeb.
03.Koj puas tuaj yeem muab A516 Gr70N nrog HIC (Hydrogen Induced Cracking) cov ntawv ceeb toom rau kev pabcuam qaub?
Peb ua tiav qhov no los ntawm kev tswj hwm nruj ntawm chemistry (tsawg S, P) thiab cov txuj ci tshwj xeeb dov. Peb tuaj yeem muab ib qho3.2 hom kev soj ntsuam daim ntawv pov thawjtso tawm los ntawm ib tug thib peb (xws li SGS los yog BV) paub meej tias cov phiaj yog haum rau qaub qhov kev pab cuam ib puag ncig.
04.Hom ntawv pov thawj twg thiab daim ntawv pov thawj zeb xeem (MTC) koj muab?
Mill Test Certificate (MTC):Raws li ibEN 10204 2.2los yog3.1.
Thib peb-Kev soj ntsuam tog:Muaj raws li ibEN 10204 3.2(Lloyd's, DNV, BV, thiab lwm yam).
UT Test:Ultrasonic soj ntsuam cov ntaub ntawv raws liSA-578 Qib Clos yogE.
Qhia:Cov kab kos kev kho cua sov thiab cov ntawv ceeb toom cuam tshuam nrog.
05.Puas yog ua ntej- cua sov yuav tsum tau ua ua ntej vuam A516 Gr70N, thiab koj puas muab kev pabcuam txiav?
Yog lawm, peb muab cov txiaj ntsig - ntxiv cov kev pabcuam:Peb tuaj yeem muab cov phajnpaj -rau- sivnrog CNC txiav, bevelling, thiab txawm flattening los pab koj txo cov seem thiab ntau lawm lub sij hawm.
Cim npe nrov: a516gr70n steel phaj, Tuam Tshoj a516gr70n steel phaj lwm tus neeg
