P355NH hlauyog ib qho zoo li qub, weldable nplua - qib steel qib tshwj xeeb tsim los rau lub hom phiaj siab raws li European tus qauv EN 10028-3.
Lub npe nws tus kheej nthuav tawm cov ntaub ntawv tseem ceeb ntawm tus kheej: "P" sawv cev rau lub hom phiaj siab, "355" qhia qhov tsawg kawg nkaus lub zog ntawm 355 MPa (rau cov tuab txog li 16 hli), "N" qhia txog cov xwm txheej zoo li qub, thiab "H" qhia qhov tsim nyog rau kev ua haujlwm siab - kub. Qib tseem raug txheeb xyuas los ntawm tus lej hlau 1.0565 hauv European lej.
Raws li tsis yog- alloy zoo steel nrog cov ntsiab lus siab - qhov kub thiab txias,P355NH hlauyog tsim los ua kom muaj kev ntseeg siab nyob rau hauv ib puag ncig uas ua haujlwm kub tuaj yeem ncav cuag 400 degree. Kev kho cua sov normalization refines lub grain qauv, ua ib tug niaj hnub microstructure uas txhim khu ob qho tib si txhua yam khoom thiab vuam yam ntxwv. Qhov no ua rau P355NH yog qhov kev xaiv zoo dua li cov pa roj carbon steels thaum cov ntawv thov xav tau kev sib xyaw ua ke ntawm lub zog nruab nrab, zoo ductility, thiab tiv thaiv thermal degradation nyob rau lub sijhawm ua haujlwm ntev.
GNEE Steel cov khoom sivP355NH steel phajnyob rau hauv thicknesses li ntawm 6 hli mus rau 300 hli, dav ntawm 1,500 hli mus rau 4,050 hli, thiab ntev ntawm 3,000 hli mus rau 15,000 hli. Peb kuj muab cov kev txiav txiav, kev npaj ntug, thiab kev kuaj ultrasonic (UT) cov kev pabcuam kom tau raws li qhov kev xav tau tshwj xeeb.
Peb cov P355NH daim hlau yog tsim nyob rau hauv nruj raws li EN 10028-3 cov qauv thiab tuaj nrog tag nrho EN 10204 3.1 daim ntawv pov thawj zeb xeem, xyuas kom meej cov khoom tiav traceability ntawm yaj mus rau xa. Hauv phau ntawv qhia dav dav no, peb yuav qhia koj txog txhua yam ntawmP355NH hlau-los ntawm cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab mus rau qhov tiag-cov ntawv thov hauv ntiaj teb thiab kev lees paub zoo- yog li koj tuaj yeem hais qhia thiab qhov chaw nrog kev ntseeg siab.
Cov tshuaj muaj pes tsawg leeg ntawm P355NH Steel (EN 10028-3)
| Element | Cov ntsiab lus (Max%) |
|---|---|
| Cov pa roj carbon (C) | 0.18 |
| Silicon (Si) | 0.50 |
| Manganese (Mn) | 1.10 – 1.70 |
| Phosphorus (P) | 0.025 |
| Sulfur (S) | 0.015 |
| Chromium (Cr) | 0.30 |
| Nickel (Ni) | 0.50 |
| Molybdenum (hli) | 0.08 |
| Niobium (Nb) | 0.05 |
| Titanium (Ti) | 0.03 |
| Vanadium (V) | 0.10 |
| Nitrogen (N) | 0.012 |
| Aluminium (Al) | 0.020 (min) |
| Copper (Cu) | 0.30 |
| Nb + Ti + V | Tsawg dua lossis sib npaug li 0.12 |
Mechanical Properties ntawm P355NH Hlau - Chav Kub
| Nominal Thickness (hli) | Min. Yield zog ReH (MPa) | Tensile zog Rm (MPa) | Min. Elongation A (%) |
|---|---|---|---|
| Tsawg dua los yog sib npaug li 16 | 355 | 490 – 630 | 22 |
| 16> Tsawg dua los yog sib npaug li 40 | 345 | 490 – 630 | 22 |
| 40> Less tshaj los yog sib npaug rau 60 | 335 | 490 – 630 | 22 |
| 60> rau Less tshaj los yog sib npaug rau 100 | 315 | 470 – 610 | 21 |
| 100> rau Less dua los yog sib npaug rau 150 | 305 | 460 – 600 | 21 |
| 150> rau Tsawg dua lossis sib npaug li 250 | 295 | 450 – 590 | 21 |
* Cov ntaub ntawv siv los ntawm EN 10028-3 thiab cov ntaub ntawv pov thawj tus neeg muag khoom pov thawj *
Lub zog cuam tshuam ntawm P355NH Steel - Transverse (KV, J)
| Kev ntsuas kub | Hom Min. Impact Zog (J) |
|---|---|
| -20 degree | 27 – 30 |
| 0 degree | 35 – 40 |
| +20 degree | 39 – 50 |
Qhov kub thiab txias ntawm P355NH hlau
Dab tsi txawvP355NH hlaulos ntawm cov txheej txheem steels yog nws qhov tsim nyog rau kev siab siab -kev pabcuam kub- "H" hauv kev xaiv qhia meej meej txog qhov muaj peev xwm no. Raws li EN 10028-3, P355NH yog tsim los tswj nws cov neeg kho tshuab kev ncaj ncees ntawm kev khiav hauj lwm kub txog li 400 degree, ua rau nws haum rau chav boilers, dej kub systems, thiab high-temperature txheej txheem cov khoom.
Lub microstructure normalized plays lub luag haujlwm tseem ceeb ntawm no. Tsis zoo li -khoov steels uas tej zaum yuav muaj kev degradation ntawm microstructural nyob rau hauv kev raug thermal raug, qhov ruaj khov grain qauv ntawm normalized P355NH resists creep deformation thiab tswj yield zog ntawm siab kub.
Qhov no yog qhov tseem ceeb tshwj xeeb hauv kev siv xws li:
- Chav boiler nruas thiab plhaubUa haujlwm ntawm qhov kub ntawm 200℃thiab 350 degree
- Txheej txheem kub exchangershauv petrochemical cov nroj tsuag
- Cov kua dej kub cia thiab thauj cov hlab ntsha
- Reactor siab Cheebtsamnyob rau hauv chemical synthesis units
Rau qhov project engineers thiab fabricators, qhov no txhais tau tiasP355NH hlautuaj yeem teev nrog kev ntseeg siab thoob plaws qhov kub ua haujlwm dav dav yam tsis muaj tus nqi ntxiv ntawm cov qib siab dua -cov qib alloy zoo li P460NH- muab cov qauv tsim kev ntxhov siab thiab qhov kub thiab txias poob rau hauv qib kev siv tau.
P355NH vs. P355NL1 thiab P355NL2 - Nkag siab qhov txawv
Thaum tshuaj xyuas EN 10028-3 qib, nws yuav pab tau kom nkag siab qhov twg P355NH haum rau cov neeg hauv tsev neeg.
Qhov sib txawv tseem ceeb nyob hauv qhov qis - qhov ntsuas kub ntawm qhov ntsuas qhov ntsuas:
- P355 NH: Kev ntsuas cuam tshuam ntawm -20 degree, optimized rau siab-kub daim ntawv thov (txog ~ 400 degree)
- P355NL1: Kev ntsuas cuam tshuam ntawm -40 degree, haum rau qis -kub siab cov hlab ntsha thiab qhov chaw txias-qhov chaw
- P355 NL 2: Impact test ntawm -50 degree, muab superior ultra-low-kub toughness rau cryogenic-nyob ib sab kev pab cuam
GNEE Steel cov khoom lag luam thiab cov khoom siv tag nrho peb qhov sib txawv, thiab peb pab pawg kws tshaj lij tuaj yeem pab koj txiav txim siab qib twg zoo tshaj plaws rau koj qhov kev ua haujlwm, kev tsim qauv, thiab ib puag ncig.
Kev Pabcuam Kev Ua Haujlwm thiab Kev Xeem rau P355NH Steel
Tshaj li muab cov qauv phaj qhov ntev, GNEE Steel muab tus nqi - ntxiv cov kev pabcuam thiab kev sim ua kom yooj yim rau kev tsim cov haujlwm:
- Kev kuaj ultrasonic (UT): Hauv -Kev kuaj xyuas ultrasonic hauv tsev raws li EN 10160 lossis ASTM A578 txhawm rau txheeb xyuas lub suab sab hauv
- Kev xeem HIC / SSC: Hydrogen Induced Cracking and Sulfide Stress Cracking testing per NACE MR0175 rau cov kev pabcuam qaub
- Los ntawm -Thickness Tensile Testing (Z-qib): Z15, Z25, Z35 kuaj rau daim ntawv thov uas yuav tsum tau tiv thaiv lamellar tearing
- Tsau -Kev txiav loj: Precision txiav rau koj qhov luaj li cas, txo ntawm -kev ua haujlwm thiab cov khoom seem
- Kev npaj nto: Tua blasting rau Sa 2.5 thiab khw priming rau kev tiv thaiv corrosion thaum thauj thiab cia
Cov kev pabcuam no cuam tshuam txog GNEE Steel txoj kev cog lus los ua ntau tshaj li cov khoom lag luam hauv Tshuag -peb yog ib tus neeg koom tes ua haujlwm rau kev xa khoom ntawm lub nkoj siab steel, muaj peev xwm xa cov khoom tsim tawm - npaj cov khoom uas txo koj cov nqi qis thiab cov sij hawm ua.
Koj puas tseem xav paub ntxiv txog kev ua cov hlau
Ib yam li koj, 70% cov neeg siv khoom xaiv ntev -lub sij hawm kev koom tes nrog GNEE steel tsis yog rau peb cov khoom zoo thiab kev pabcuam zoo, lub koob npe nrov hauv kev ua lag luam thoob ntiaj teb, tab sis kuj rau peb cov kev paub dhau los - nres cov khoom siv raw khoom thiab kev ua hlau ntxiv!
FAQ
Qhov siab tshaj plaws ua haujlwm kub rau P355NH hlau yog dab tsi?
P355NH hlauyog tsim los rau siab - qhov kev pabcuam kub thiab feem ntau siv rau hauv cov ntawv thov ua haujlwm txog li 400℃. Rau kev ua haujlwm ruaj khov ntawm qhov kub thiab txias nce mus txog lossis tshaj qhov ntau ntawm no, sab laj tus qauv tsim qauv (piv txwv li, EN 13445) thiab xav txog lwm txoj kev siab dua - qib alloy yog pom zoo.
P355NH hlau puas tuaj yeem siv rau hauv kev pabcuam qaub (H₂S) ib puag ncig?
P355NH hlautsis yog qhov tsim nyog rau kev pabcuam qaub; Txawm li cas los xij, ntxiv HIC (Hydrogen Induced Cracking) thiab SSC (Sulfide Stress Cracking) kuaj ib NACE MR0175 tuaj yeem npaj tau raws li kev thov. GNEE Steel tuaj yeem muab P355NH daim hlau nrog HIC/SSC kuaj rau cov ntawv thov uas muaj cov kev pabcuam H₂S ntub dej, raws li kev txiav txim- kev tshuaj xyuas tshwj xeeb.
Qhov txawv ntawm P355N, P355NH, thiab P355NL1 yog dab tsi?
Tag nrho peb qib muaj qhov tsawg kawg nkaus tawm lub zog thiab koom nrog EN 10028-3 tsev neeg, tab sis lawv txawv ntawm qhov ntsuas kub:P355Nyog rau lub hom phiaj siab dav (kev sim cuam tshuam ntawm -20 degree),P355 NHyog optimized rau elevated - kev pab kub (txog ~ 400 degree, cuam tshuam ntawm -20 degree), thiabP355NL1yog npaj rau qis- daim ntawv thov kub (kev sim cuam tshuam ntawm -40℃).
Puas yog GNEE Steel muab P355NH kav thiab fittings?
GNEE Steel feem ntau cov khoom sivP355NH steel phajnyob rau hauv daim ntawv tiaj tus. Rau P355NH seamless kav (EN 10216-3), welded kav (EN 10217-3), thiab pob tw-welding fittings (EN 10253-2), peb xav kom sab laj nrog peb cov yeeb nkab faib kom muaj.
Npaj rau qhov P355NH steel rau koj qhov project tom ntej? Hu rau GNEE Steel hnub no.Xa peb koj cov lus qhia tshwj xeeb -qib, qhov ntev, qhov ntau, thiab qhov chaw nyob - thiab peb pab neeg yuav teb nrog cov lus sib tw hauv ib teev. Koj tuaj yeem hu rau peb ntawm email, xov tooj, lossis daim ntawv nug ntawm peb lub vev xaib. Cia GNEE Steel yog koj qhov kev ntseeg siab, ntev -lub sijhawm tus khub rau kev daws teeb meem ntawm lub nkoj siab.
