P245 NIB is a specialized low-carbon, hot-rolled steel designed according to EN 10120 forhigh-pressure, welded gas cylinders, offering high toughness, reliability, and excellentweldability. It offers a minimum yield strength of > 245 MPa, tensile strength of > 400MPa, and excellent ductility (>28% elongation), ua kom muaj kev nyab xeeb hauv kev thauj cov pa roj carbon monoxide.
P245NB siab-siab steel rau welded gas cylinders
Welded gas cylinders yog cov khoom tseem ceeb hauv ntau qhov kev lag luam, suav nrog aerospace, tsheb, kev kho mob, thiab kev lag luam roj. Cov cylinders no yuav tsum tiv taus kev kub siab sab hauv thaum tuav cov txheej txheem kev ncaj ncees nyob rau hauv huab cua. P245NB siab-siab steel, muaj npe nrov rau nws cov tawv tawv thiab kev ntseeg siab, tau dhau los ua kev xaiv rau cov tuam txhab nrhiav kom tau raws li cov qauv kev nyab xeeb thiab kev ua haujlwm nruj.
Txheej txheem cej luam ntawm P245NB Siab-Pressure Steel
P245NB yog ib qho uas tsis yog- alloy structural steel tshwj xeeb tsim los rau cov hlab ntsha siab, nrog rau kev tsom mus rau welded gas cylinder daim ntawv thov. Nws belongs rau cov roj kheej kheej steels teev nyob rau hauv EN 10120, sib haum rau SG 255 hauv JIS G 3116: 1991 thiab lub npe qub BZ 37, kom ntseeg tau tias muaj kev sib raug zoo nrog cov qauv thoob ntiaj teb thiab kev sib hloov hauv kev tsim khoom thoob ntiaj teb.
Cov hlau yog tsim los ntawm nruj kub- dov thiab normalizing txheej txheem, uas optimize nws sab hauv microstructure, ua rau nws muaj cov khoom uas yuav tsum tau rau siab - siab gas cia- nrog rau siab toughness, zoo heev weldability, thiab ruaj khov lub zog, yog li ua tau raws li lub hnyav ua hauj lwm tej yam kev mob ntawm cov roj thooj voos kheej kheej uas dais nyob rau hauv lub sij hawm ntev {{3}.
Tshuaj muaj pes tsawg leeg ntawm P245NB steel
| keeb | C | Si | Mn | P | S | Al | Nb | Ti | N |
|---|---|---|---|---|---|---|---|---|---|
| P245 NIB | 0.16 | 0.25 | 0.30 | 0.025 | 0.015 | Ntau dua lossis sib npaug rau 0.020 | 0.05 | 0.03 | 0.009 |
Cov pa roj carbon tsawg, tsawg phosphorus thiab sulfur, thiab micro-alloying (Nb/Ti/Al rau cov nplej refinement) ua kom cov yas zoo, siab tawv, thiab weldability zoo heev.
Mechanical Properties ntawm P245NB steel
| Khoom | Tus nqi |
| Yield zog (Re) |
Ntau dua lossis sib npaug li 245 MPa |
| Tensile zog (Rm) | 390-530 MPa |
| Elongation (A5) |
Ntau dua lossis sib npaug li 23% |
| Impact Zog (KV) | 27 J (ntawm -20 degree) lossis 40 J (ntawm 0 degree) |
High Toughness: Ib qho khoom tseem ceeb rau lub tog raj kheej siab
Txhais thiab qhov tseem ceeb ntawm Toughness
Toughness yog hais txog cov khoom muaj peev xwm nqus tau lub zog thiab deform plastically ua ntej fracturing. Nyob rau hauv cov ntsiab lus ntawm lub tog raj kheej siab, siab toughness yog ib qho tseem ceeb heev vim hais tias nws ua rau lub tog raj kheej tiv taus tam sim ntawd cuam tshuam, vibrations, thiab thermal stresses yam tsis muaj kev puas tsuaj loj. P245NB steel nthuav tawm cov tawv tawv zoo heev, ua rau nws tiv taus kev tawg thiab tawg tawg.
Microstructural Factors Ua rau Toughness
Lub siab toughness ntawm P245NB hlau tuaj yeem raug ntaus nqi rau nws cov qauv zoo microstructure, uas feem ntau muaj cov nplua -grained ferrite-pearlite matrix. Qhov microstructure no muab qhov sib npaug ntawm lub zog thiab ductility, tso cai rau cov khoom kom deform plastically nyob rau hauv kev ntxhov siab thaum tiv thaiv kev tawg thiab kev loj hlob. Tsis tas li ntawd, qhov muaj me me ntawm cov ntsiab lus alloying, xws li manganese thiab silicon, ntxiv dag zog rau lub zog los ntawm kev ua kom zoo ntawm cov nplej loj thiab txhim kho cov hlau tsis kam mus rau temper embrittlement.
Kev cuam tshuam ntawm Toughness ntawm lub tog raj kheej kev ua haujlwm
Lub siab tawv ua kom ntseeg tau tias P245NB steel lub tog raj kheej tuaj yeem tiv taus kev poob qis, cuam tshuam thaum thauj, thiab hloov siab ceev yam tsis muaj kev tawg. Cov cuab yeej no yog qhov tseem ceeb tshwj xeeb hauv cov ntawv thov uas lub tog raj kheej tuaj yeem raug cuam tshuam rau qhov chaw hnyav lossis kev tsim kho tshuab, xws li hauv cov chaw tsim kho lossis cov xwm txheej thaum muaj xwm txheej ceev. Lub peev xwm nqus tau lub zog thiab deform yam tsis muaj qhov tsis ua haujlwm txhim kho tag nrho kev nyab xeeb thiab kev ntseeg siab ntawm lub tog raj kheej.
Kev ntseeg siab: Ua kom ntev -Tsev Kawm Ntawv
Kev txhais thiab qhov tseem ceeb ntawm Kev Ntseeg
Kev ntseeg tau hais txog cov khoom muaj peev xwm ua tau raws li cov xwm txheej tau teev tseg nyob rau lub sijhawm txuas ntxiv. Rau lub tog raj kheej siab, kev ntseeg siab yog qhov tseem ceeb los xyuas kom meej tias lub tog raj kheej tswj hwm nws cov qauv kev ntseeg siab thiab muaj peev xwm ntim roj thoob plaws hauv nws lub neej kev pabcuam. P245NB steel qhov kev ntseeg siab yog tsim los ntawm nws cov khoom siv zoo ib yam, weldability zoo heev, thiab tsis kam tiv thaiv corrosion thiab qaug zog.
Raws li cov cuab yeej cuab tam
P245NB steel yog tsim los rau cov qauv kev tswj xyuas nruj, kom ntseeg tau tias cov khoom siv ua haujlwm zoo sib xws hauv cov khoom siv. Qhov kev sib xws no yog qhov tseem ceeb rau kev siv lub tog raj kheej siab, vim qhov hloov pauv ntawm cov khoom siv tuaj yeem ua rau tsis sib xws kev ntxhov siab thiab cov ntsiab lus tsis ua haujlwm. Cov hlau qhov kev coj tus cwj pwm zoo nyob rau hauv kev ntxhov siab tso cai rau cov tuam txhab tsim cov thooj voos kheej kheej nrog cov phab ntsa zoo thiab cov npoo kev nyab xeeb, txhim kho kev ntseeg tau tag nrho.
Weldability zoo heev
Vuam yog cov txheej txheem tseem ceeb hauv kev tsim cov welded gas cylinders, thiab weldability ntawm cov khoom hauv paus cuam tshuam rau lub tog raj kheej kev ntseeg siab. P245NB steel nthuav dav weldability zoo heev vim nws cov ntsiab lus tsis tshua muaj carbon thiab sib npaug alloy muaj pes tsawg leeg. Cov cuab yeej no tso cai rau siab -welds zoo nrog qhov tsis xws luag, xws li porosity lossis tawg, uas tuaj yeem cuam tshuam rau lub tog raj kheej kev ncaj ncees. Tsis tas li ntawd, cov hlau weldability pab txhawb cov txheej txheem ntau lawm, txo cov kev pheej hmoo ntawm tib neeg kev ua yuam kev thiab ua kom muaj qhov zoo sib xws.
Resistance rau Corrosion thiab qaug zog
P245NB steel tiv thaiv corrosion thiab qaug zog ntxiv txhim kho nws txoj kev ntseeg siab hauv kev siv lub tog raj kheej siab. Corrosion tuaj yeem ua rau lub tog raj kheej phab ntsa tsis muaj zog nyob rau lub sijhawm, ua rau muaj kev tawg lossis tawg, thaum qaug zog tuaj yeem tshwm sim los ntawm kev rov ua haujlwm siab, ua rau tawg ua rau pib thiab nthuav tawm. Cov hlau cov tshuaj lom neeg muaj pes tsawg leeg thiab microstructure muab kev tiv thaiv los ntawm cov txheej txheem degradation, txuas ntxiv lub tog raj kheej lub neej kev pab cuam thiab txo qhov xav tau kev tshuaj xyuas ntau zaus lossis hloov pauv.
P245NB Application Scenario Cov ntsiab lus luv luv
Civilian Liquefied Petroleum Gas Cylinders (LPG Lub tog raj kheej):Welded steel cylinders rau tsev neeg, catering, thiab me -scale kev lag luam thiab kev lag luam siv yog cov kev siv tseem ceeb tshaj plaws.
Industrial Gas Lub tog raj kheej:Txheem welded siab- lub tog raj kheej siab siv los khaws cov pa oxygen, nitrogen, argon, carbon dioxide, thiab cov roj sib xyaw ua ke.
Medical Gas Lub tog raj kheej:Tsawg-siab / nruab nrab-siab welded thooj voos kheej kheej rau kev kho mob oxygen thiab khoom siv kho mob, ua kom muaj kev nyab xeeb siv vim cov khoom ruaj khov.
Me Atmospheric/Low-Pressure Gas Storage Containers:Qee qhov me me welded gas cia tanks, portable gas containers, thiab hluav taws kub - sib ntaus sib tua thiab thaum muaj xwm ceev gas cylinder Cheebtsam.
General Pressure Fittings thiab Thawv Plhaub:Txias- stamped thiab welded qhov chaw xws li welded siab hlab plhaub, lub tog raj kheej taub hau / lub cev, thiab lwm yam, uas ua tau raws li qhov yuav tsum tau ua.
Ntawm GNEE Steel, peb txaus siab rau peb tus kheej ntawm kev ua ntau tshaj li cov chaw tsim khoom; peb yog ib tus khub hauv koj txoj kev vam meej. Peb cov qib siab -qib P245NB welded gas cylinders steel tau ntseeg los ntawm cov tuam txhab lub tog raj kheej thoob ntiaj teb rau nws qhov sib xws thiab kev ntseeg tau.
Hu rau tam sim no kom tau txais roj cylinder steel daim hlau Quote
P245NB puas tuaj yeem siv rau LPG lub tog raj kheej?
Yog lawm, P245NB yog qhov tsim nyog rau kev tsim khoom hauv tsev thiab kev lag luam LPG (kua roj av kua) lub tog raj kheej. Nws zoo heev formability thiab weldability tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm LPG lub tog raj kheej plhaub thiab lub taub hau.
Puas yog P245NB haum rau kev lag luam roj kheej kheej?
Yog lawm, P245NB tuaj yeem siv rau kev lag luam roj thooj voos kheej kheej, xws li cov pa oxygen, lub tog raj kheej nitrogen, argon cylinders thiab carbon dioxide cylinders, tshwj xeeb tshaj yog rau qis - siab muaj roj cia cov xwm txheej.
P245NB puas tuaj yeem siv rau lub plhaub tua hluav taws?
Yog lawm, P245NB yog tsim rau kev tsim hluav taws kub tua hluav taws plhaub. Nws lub teeb yuag, lub zog siab thiab zoo txias formability ua rau nws yog ib qho khoom siv zoo tshaj plaws rau lub siab me me -cov kabmob tua hluav taws plhaub.
Puas yog P245NB haum rau qis - cov hlab ntsha siab?
Yog lawm, P245NB yog qhov tsim nyog rau qis- cov hlab ntsha siab nrog lub siab tsim tsawg dua 1.6MPa, xws li cov pa me me cia tso tsheb hlau luam, zaub mov- qib CO₂ lub tank thiab lwm yam tsawg- cov khoom siv cia siab.
P245NB puas tuaj yeem siv rau hauv qhov chaw qis - qhov kub thiab txias?
Yog lawm, P245NB tuaj yeem siv rau hauv qhov chaw qis - qhov kub thiab txias. Nws lub zog cuam tshuam ntawm -20℃yog siab dua lossis sib npaug ntawm 27J, uas muaj qhov kub thiab txias tsis zoo thiab tuaj yeem siv rau hauv cov cheeb tsam txias (siab dua -20 degree) yam tsis muaj pob txha tawg.
