P355Qyog qib qis- alloy high-lub zog steel qib. Nws ua raws li European cov qauv, muaj qhov zoo toughness, weldability thiab txhua yam khoom. Dav siv nyob rau hauv kev tsim kho, choj thiab siab nkoj tsim khoom uas yuav tsum tau txhim khu kev qha load- bearing peev.
Cov yam ntxwv tseem ceeb thiab cov npe
P: Qhia steel rau lub hom phiaj siab.
355: Sawv cev qhov tsawg kawg nkaus yield zog ntawm 355 MPa (rau thickness Tsawg tshaj los yog sib npaug rau 50mm).
Q: Stands rau "Quenched thiab Tempered" kev kho cua sov.
TxujTS EN 10028 EN 10028-6: Cov khoom lag luam tiaj tus ua los ntawm cov hlau rau lub hom phiaj siab - Ntu 6: Weldable zoo grain steels, quenched thiab tempered.
P355Q siab nkoj steel tshuaj muaj pes tsawg leeg %
| Qib | Khoom No. | C max | Si max | Mn max | P max | S max | N min | Bmax | Cr max | Mas max | Cumax | Nb max | Nim max | Tau max | V max | Zr max |
| P355Q | 1.8866 | 0.16 | 0.40 | 1.50 | 0.025 | 0.010 | 0.015 | 0.005 | 0.30 | 0.25 | 0.30 | 0.05 | 0.50 | 0.03 | 0.06 | 0.05 |
P355Q 1.8866 siab hlab ntsha hlau Mechanical zog
| Phaj Thickness (mm) | Ib txwm xa khoom | Yield zog ReHMPa min | Tensile zog Rm MPa | Elongation A% min | Impact Energy KV2 J min ntawm qhov kub thiab txias hauv℃ntawm | ||||
| -60 | -40 | -20 | 0 | +20 | |||||
| Tsawg dua los yog sib npaug li 50 | + QT | 355 | 490-630 | 22 | - | - | 27 | 40 | 60 |
| 50<> | 335 | ||||||||
| 100<> | 315 | 450-590 | |||||||
P355Q kev ua haujlwm ntws
Steelmaking & Refining: Molten steel yog tsim los ntawm converter los yog hluav taws xob arc rauv, ces refined nyob rau hauv ib tug ladle furnace (LF) los kho tshuaj muaj pes tsawg leeg. Lub tshuab nqus tsev degassing (VD) yog ua los tshem tawm cov impurities (hydrogen, oxygen) thiab xyuas kom muaj kev sib haum xeeb.
Casting: Refined molten steel yog nruam nrum rau hauv slabs / blooms. Deg tsis xws luag (scratches, tawg) raug tshem tawm los ntawm scarfing los yog sib tsoo tom qab txias.
Kub Rolling: Cam khwb cia slabs yog reheated rau ib tug haum kub, ces kub - dov mus rau lub hom phiaj thickness thiab dav. Tswj dov yog siv rau optimize grain qauv.
Quenching & Tempering (Q&T): Cov phaj yog austenitized ntawm 880-950 degree, ua raws li cov dej quenching los ua ib tug hardened martensite qauv. Tempering ntawm 580-680℃yog ua kom sib npaug zog thiab toughness.
Kev tshuaj xyuas: Tsis yog -kev kuaj kev puas tsuaj (ultrasonic, kev tshuaj xyuas qhov muag) thiab kev kuaj tshuab (tensile, impact) yog ua los xyuas kom meej qhov ua tau zoo.
Tiav & Xa: Cov kauj ruam kawg suav nrog kev tua blasting, ntug trimming, thiab dimension calibration. Cov khoom tsim nyog tau ntim thiab xa nrog ntawv pov thawj.
daim ntawv thov
Cov Khoom Siv Hluav Taws Xob thiab Boilers:
Raws li quenched thiab tempered siab lub nkoj steel raws li EN 10028-6, P355Q yog dav siv nyob rau hauv kev tsim khoom nyob ruaj ruaj thiab lub nkoj siab. Cov xwm txheej muaj xws li cov tshuaj reactors, cov tso tsheb hlau luam rau cov roj av, cov pa roj carbon monoxide thiab chemical media, boiler nruas, thiab cov khoom siv hluav taws xob. Nws yog tsim rau cov hlab ntsha uas muaj qhov nruab nrab mus rau qhov siab siab thiab ua haujlwm hauv qhov chaw hnyav.
Petrochemical thiab Refining Kev Lag Luam:
Nws yog siv rau hauv cov cuab yeej tseem ceeb ntawm cov nroj tsuag petrochemical, xws li hydrocracking reactors, fractionating towers, thiab pipeline systems rau thauj siab - kub thiab siab - roj thiab roj. Nws zoo heev toughness thiab corrosion kuj yuav hloov mus rau lub complex nruab nrab ib puag ncig (xws li, hydrogen, sulfur- muaj cov tebchaw) nyob rau hauv refining txheej txheem.
Cov cuab yeej tsim hluav taws xob:
Hauv cov chaw tsim hluav taws xob thermal thiab cov tshuab hluav taws xob nuclear, P355Q yog siv los ua cov khoom siv boiler, cov kav dej, thiab lub siab -cov khoom ntim rau kev xa hluav taws xob. Nws tuaj yeem tiv taus lub sijhawm ntev - ua haujlwm nyob rau hauv siab - qhov kub thiab txias, ua kom muaj kev ruaj ntseg thiab kev nyab xeeb ntawm cov khoom siv hluav taws xob.
Marine thiab Offshore Engineering:
Nws yog siv nyob rau hauv offshore roj thiab roj platforms, marine siab hlab ntsha, thiab nkoj -bone boiler systems. Nws tuaj yeem tiv taus cov dej hiav txwv thiab cov huab cua ntub, thiab ua tau raws li lub zog nruj ntawm cov khoom siv hauv hiav txwv nyob rau hauv cov dej hiav txwv nyuaj (xws li cua, yoj, thiab cov khoom thauj tam sim no).
Heavy Machinery thiab Kev Tsim Kho:
Rau loj -scale engineering machinery (piv txwv li, excavators, cranes) thiab siab- bearing structures nyob rau hauv kev tsim kho tej yaam num (xws li, siab-siab pipelines rau lub nroog cua sov), P355Q muab kev txhim khu kev qha kev txhawb nqa vim nws lub zog thiab ductility.
Vim li cas thiaj xaiv peb:
Koj tuaj yeem tau txais cov khoom zoo meej raws li qhov koj xav tau ntawm tus nqi tsawg kawg nkaus.
Peb kuj muab Reworks, FOB, CFR, CIF, thiab qhov rooj rau qhov rooj tus nqi xa khoom. Peb xav kom koj ua deal rau shipping uas yuav zoo heev.
Cov ntaub ntawv uas peb muab yog muaj tseeb tiag, txoj cai los ntawm raw cov ntaub ntawv xeem daim ntawv pov thawj mus rau qhov kawg dimensional nqe lus.
Peb lav muab cov lus teb tsis pub dhau 24 teev (feem ntau hauv tib lub sijhawm)
Koj tuaj yeem tau txais cov khoom hloov pauv, zeb xa khoom nrog txo lub sijhawm tsim khoom.
Peb tau mob siab rau peb cov neeg siv khoom. Yog tias nws yuav tsis tuaj yeem ua tau raws li koj cov kev xav tau tom qab kuaj xyuas tag nrho cov kev xaiv, peb yuav tsis ntxias koj los ntawm kev cog lus tsis tseeb uas yuav tsim kev sib raug zoo rau cov neeg siv khoom.
Yog xav paub ntxiv txog GNEE cov khoom siv hlau, tiv tauj peb ntawm beam@gneesteelgroup.com. Peb tos ntsoov yuav ua haujlwm nrog koj.
P355Q puas tuaj yeem ua tau txias-?
P355Q tuaj yeem txias - tsim raws li qhov tsim nyog. Nws zoo ductility tso cai rau khoov, stamping thiab lwm yam txias - txheej txheem tsim. Txawm li cas los xij, qhov txias deformation ntau dhau tuaj yeem txo qhov tawv, yog li tom qab- kev kho cua sov yuav xav tau.
Lub hardness ntawm P355Q yog dab tsi?
Brinell hardness ntawm P355Q feem ntau yog nyob nruab nrab ntawm 137 thiab 170 HB. Lub hardness nruab nrab sib npaug machinability thiab lub zog, ua rau nws yooj yim rau txheej txheem thaum ua kom cov hlau tuaj yeem dais qhov yuav tsum tau ua.
Lub xeev xa khoom ntawm P355Q yog dab tsi?
P355Q feem ntau yog xa hauv lub xeev normalized (N). Normalizing kho optimizes nws cov qauv nplej, kom ntseeg tau tias cov khoom siv kho tshuab tsis sib xws. Lwm lub xeev xa khoom (xws li, thermomechanical dov) tuaj yeem muab tau raws li cov neeg siv khoom xav tau.
P355Q puas tuaj yeem siv rau hauv kev tsim khoom hnyav?
Yog lawm, P355Q yog dav siv hauv kev tsim cov tshuab hnyav, xws li excavators, cranes thiab bulldozers. Nws lub zog siab thiab toughness tuaj yeem tiv taus cov khoom hnyav thiab cuam tshuam lub zog thaum lub sijhawm ua haujlwm tshuab, ua kom ntseeg tau kev ua tau zoo.
Qhov txawv ntawm P355Q thiab P355M yog dab tsi?
Qhov sib txawv tseem ceeb yog qhov ntsuas qhov ntsuas kub. P355Q raug kuaj ntawm -20 degree, thaum P355M ntawm -15℃. Yog li, P355Q muaj qhov zoo dua qhov kub thiab txias tsis kam, haum rau cov cheeb tsam txias lossis qhov chaw ua haujlwm kub.
P355Q puas xav tau preheating ua ntej vuam?
Feem ntau, P355Q tsis xav tau preheating ua ntej vuam rau nyias daim hlau. Rau cov phaj tuab (tshaj 20mm) lossis nyob rau hauv qis - qhov kub thiab txias ib puag ncig, preheating rau 50-100℃yog pom zoo kom txo vuam kev nyuaj siab thiab tsis txhob txias cracking.
Dab tsi yog qhov qaug zog tiv thaiv ntawm P355Q?
P355Q muaj kev qaug zog zoo. Nws tuaj yeem tiv taus kev rov ua kom rov ua haujlwm yam tsis muaj kev qaug zog tsis ua haujlwm, uas yog qhov tseem ceeb rau cov qauv xws li txuas hniav thiab cov tshuab uas raug hloov pauv ntau zaus thaum lub sijhawm ua haujlwm.
P355Q puas tuaj yeem siv rau hauv kev tsim vaj tsev?
Yog lawm, P355Q yog qhov tsim nyog rau kev tsim vaj tsev, tshwj xeeb tshaj yog siab - cov tsev nce siab thiab loj - ncua cov qauv. Nws lub zog siab txo qhov hnyav ntawm cov khoom siv, txuag cov ntaub ntawv thiab kev tsim kho kom yooj yim thaum ua kom muaj kev ruaj ntseg ntawm cov qauv.
Dab tsi yog qhov yuav tsum tau cia rau P355Q daim hlau?
P355Q daim hlau yuav tsum muab cia rau hauv qhov chaw qhuav, zoo -ventilated warehouse kom tsis txhob ya raws thiab corrosion. Lawv yuav tsum tau muab tso rau ntawm cov ntoo pallets deb ntawm hauv av thiab tsis txhob sib cuag nrog cov khoom corrosive xws li acids thiab alkalis.
Puas yog P355Q qis- hlau alloy lossis carbon hlau?
P355Q yog qis- alloy siab- lub zog steel. Piv nrog carbon steel, nws ntxiv me me ntawm alloying ntsiab (xws li, Mn, Si) los txhim kho lub zog thiab toughness thaum tuav zoo weldability thiab machinability.