Q355NH Ntev-Lub Neej Huab Cua Resistant Steel Qauv
Xav paub ntau ntxiv txog peb cov khoom? Thov hu rau peb ntawm email lossis xov tooj.
Gnee Steel (Tianjin) Co., Ltd. yog ib qho ntawm cov kws tshaj lij q355nh ntev -lub neej huab cua resistant structural steel manufacturers thiab lwm tus neeg nyob hauv Suav teb. Txais tos rau kev lag luam wholesale customized q355nh ntev- lub neej huab cua tiv thaiv cov qauv hlau ntawm tus nqi sib tw los ntawm peb lub hoobkas. Cov kev pabcuam zoo thiab cov khoom zoo yog muaj.
Khoom Description
Q355NH Ntev-Lub Neej Huab Cua Resistant Steel Qauvyog tus hwm qis- alloy steel ua rawsGB/T 4171-2008, tsim los ua kom muaj qhov tshwj xeeb durability thiab corrosion kuj nyob rau hauv ntev - lub sij hawm raug cov qauv siv. Los ntawm kev sib koom ua ke thev naus laus zis thev naus laus zis, cov hlau no ua tiav qhov sib npaug ntawm lub zog siab, kev tsim kho, thiab tus kheej - tiv thaiv corrosion, ua rau nws zoo tagnrho rau kev tsim kho vaj tse uas yuav tsum tau saib xyuas tsawg kawg kaum xyoo.
Tshuaj muaj pes tsawg leeg (GB/T 4171-2008, Mass Fraction, %)
| Element | C | Si | Mn | P | S | Cu | Cr | Ni |
|---|---|---|---|---|---|---|---|---|
| Ntau yam | Tsawg dua lossis sib npaug li 0.16 | Tsawg dua los yog sib npaug li 0.50 | 0.50-1.50 | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.030 | 0.25-0.55 | 0.30-1.25 |
Tsawg dua lossis sib npaug li 0.65 |
Mechanical Properties (Thickness Tsawg dua lossis sib npaug ntawm 16mm, GB / T 4171-2008)
| Khoom | Tus nqi |
|---|---|
| Yield zog (ReL) | Ntau dua lossis sib npaug li 355 MPa |
| Tensile zog (Rm) | 490-630 MPa |
| Elongation (A) | Ntau dua lossis sib npaug li 20% |
| Charpy Impact Zog (20 degree, V-Notch) | Ntau dua lossis sib npaug li 47 J |
Corrosion Resistance nyob rau hauv hnyav ib puag ncig
Hauv kev teeb tsa sab nraum zoov (cov cheeb tsam hauv nroog / suburban nrog 50-80% av noo), Q355NH ua qauv qhiaruaj khov corrosion kinetics, nrog txhua xyoo thickness poob Tsawg dua los yog sib npaug rau 0.02 hli . Cov txheej tiv thaiv oxide tiv thaiv cov tshuaj chloride ingress los ntawm de-icing ntsev thiab sulfur dioxide los ntawm kev lag luam emissions, ua rau nws haum rau cov ntug hiav txwv infrastructure, lub zog xa mus yees, thiab tshuaj ua tej chaw. Txawm li cas los xij, nyob rau hauv siab - thaj chaw ntsev marine lossis acidic ib puag ncig (pH<4), supplementary coatings are recommended to further enhance protection .
Fabrication & Weldability
Q355NH txhawb nqa txias / kub sib sau thiab vuam txheej txheem tseem ceeb rau kev tsim vaj tsev. Sivqis-hydrogen electrodes(piv txwv li, E5015-NH lossis E5515-NH) kom muaj kev tiv thaiv corrosion ntawm cov pob qij txha. Preheating rau75-125 degrees is advised for thick sections (>25mm) los tiv thaiv hydrogen-induced cracking, thaum post-weld tu xyuas kom zoo ib yam oxide txheej tsim .
Cov ntawv thov tseem ceeb hauv Long-Term Infrastructure
Cov Khoom Siv Muaj: Siv nyob rau hauv tshuaj nroj tsuag thiab refineries, muab corrosion kuj rau cia tank thiab txheej txheem khoom.
Marine Structures: Haum rau cov ntug hiav txwv txuas hniav thiab chaw nres nkoj, txo kev txij nkawm hauv siab -moisture, ntsev- ib puag ncig thauj khoom.
Lub zog tauj dua tshiab: Siv nyob rau hauv cov cua turbine yees thiab lub hnub ci vaj huam sib luag txhawb nqa, nrog rau kev sib tw cyclic thiab UV raug.
Kev khaws cia cuab yeej cuab tam: Qhov zoo tshaj plaws rau kev kho vaj tsev keeb kwm yav dhau los, muab cov huab cua zoo nkauj uas ua tiav cov cuab yeej cuab tam architectural.
Qhov zoo rau Long-Life Projects
Nqi Efficiency: Txo cov nqi ntawm lub neej los ntawm 40-60% piv rau cov pa roj carbon steel los ntawm kev txo cov tha xim thiab kev saib xyuas lub sijhawm.
Sustainability: Ua raws li cov qauv kev lag luam ncig, vim cov hlau yog 100% rov ua dua tshiab thiab txo qis kev cia siab rau cov txheej txheem hluavtaws.
Ntiaj teb no Compatibility: Ua tau raws li cov qauv thoob ntiaj teb (ASTM A588 Qib A, EN 10025-5), ua kom muaj kev ua raws cai rau ntau lub tebchaws.
Quality Assurance
Txhua batch raug kuaj nruj rau cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab cov txheej txheem oxide kev ncaj ncees. Cov ntawv pov thawj zeb txheeb xyuas kev ua raws li GB/T 4171-2008, kom ntseeg tau tias kev taug qab thiab kev ua tau zoo sib xws rau cov ntawv thov mus sij hawm ntev.
Los ntawm kev sib xyaw ua ke siab tensile zog, siab heev corrosion kuj, thiab kev tsim kho- ua haujlwm zoo,Q355NH Ntev-Lub Neej Huab Cua Resistant Steel Qauvteem ib tug qauv rau durability thiab efficiency nyob rau hauv niaj hnub infrastructure, xa txhim khu kev qha kev ua tau zoo mus txog 50 xyoo nyob rau hauv nruab nrab ib puag ncig.
Tuam txhab Profile
Cov neeg tuaj xyuas
Cim npe nrov: q355nh ntev-lub neej huab cua tiv thaiv cov qauv hlau, Tuam Tshoj q355nh ntev- lub neej huab cua tiv thaiv cov qauv steel manufacturers, hoobkas
Koj Tseem Yuav Zoo Li
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