Product Overview
CovEH32 shipbuilding steel phajsawv cev rau tus pinnacle ntawm siab- zog, qis- alloy marine steel. officially tsim nyob rau hauvASTM A131 / ABScov qauv, qib no yog tsim tshwj xeeb rau kev tsim kho dej hiav txwv- cov nkoj mus, cov nkoj hauv hiav txwv drilling, thiab cov nkoj loj ntim ua haujlwm hauv cov polar lossis huab cua txias heev.
Tsis zoo li cov qauv steel qauv, EH32 yog qhov tshwj xeeb ntawm nws qhov tshwj xeeb qis - kub. Nws yog ib qho "yuav tsum-muaj" cov khoom siv rau cov chaw nres nkoj thiab cov chaw kho mob uas yuav tsum tau ua haujlwm tau lees paub ntawm-40 degree.
Cov Qauv Tseem Ceeb:ABS, BV, CCS, DNV-GL, LR, NK, RINA
Qib:EH32 (E Qib Siab Tensile Steel)
Thickness Ntau:6mm - 150mm (Customized raws li qhov project drawings)
Dav:Txog li 4500mm
Tshawb xyuas Tshuag Muaj & Tau Txais Tam Sim No
Vim li cas thiaj xaiv EH32 dhau qib qis?
Ib - nres kev yuav khoom steel
A Qib Steel:Haum rau cov qauv sab hauv (0 degree).
D Qib Steel:Txuj rau cov hulls hauv dej kub (-20 degree).
E Qib Steel (EH32): Yuav tsum tau rau lub ntsiab lub zog lawj, sheer strake, thiab hauv qab plating ntawm cov hlab ntsha tshaj 100m nyob rau hauv ntev.
Ntsiab Technical Specifications & Mechanical Properties
| Parameter | Tus nqi / Kev xav tau | Vim Li Cas Nws Tseem Ceeb |
|---|---|---|
| Yield zog(ReH) | Ntau dua lossis sib npaug li 315 MPa(46 hli) | Ua kom muaj kev ncaj ncees nyob rau hauv cov khoom thauj hnyav heev. |
| Tensile zog(Rm) | 440-590 MPa | High kev nyab xeeb margin tiv thaiv kev ua tsis tiav. |
| Elongation | Ntau dua lossis sib npaug li 22% | Zoo heev ductility rau complex hull txoj kev. |
| Charpy V-Ntch Test | -40℃/ 31J (Avg.) | Guarantees tsis muaj pob txha tawg hauv Arctic kev pabcuam. |
| Carbon sib npaug(Ceq) | Kev tswj nruj nruj Tsawg dua lossis sib npaug li 0.38% | Superior weldability rau automated ntau lawm kab. |
Daim ntawv thov Scenario
Shipbuilding
Icebreakers, Offshore Supply Vessels (OSV), Bulk Carriers, VLCCs (Cov neeg nqa khoom loj heev).
Offshore Engineering
Jack-up rigs ob txhais ceg, semi-submersible platforms.
Hnyav Environment Zones
Sab nrauv hull daim hlau raug dej hiav txwv.
Kho & Retrofit
Hloov cov hnav- tawm ntawm cov nkoj uas twb muaj lawm.
Kev sib piv: EH32 vs. AH32 vs. DH32
| Feature / Qib | AW 32(General) | DH 32(Low Temp) | EH 32(Arctic) [Prime] |
|---|---|---|---|
| Min. Yield zog | 315 MPa rau | 315 MPa rau | 315 MPa rau |
| Impact Test Temp | 0℃(32℃F) | -20 ° F (-4 ° F) | -40 ° F (-40 ° F) |
| Impact Zog (Avg) | 31J | 31J | 31J |
| Lub khw tseem ceeb | Deck tsev, interiors, me climates | Hulls ntawm general cargo nkoj | Icebreakers, Arctic OSV, Cov tswv cuab lub zog tseem ceeb |
| Muaj | Siab | Siab | Muaj (Feem ntau ua-rau- xaj) |
| Nqe Index | Tsawg | Nruab nrab | Siab (Vim cov ntsiab lus alloying Nb / V) |
vim li cas ho xaiv peb?
Peb tsis yog muag steel xwb; peb xa npaj tau- rau-fab cov khoom. Txhawm rau pab koj txo cov nqi khib nyiab thiab kev ua haujlwm, peb muab ua tiav ua ntej - ua:
Txiav:CNC Plasma & Laser txiav kom meej qhov ntev.
Kev npaj vuam:Beveling (V, X, K hom) rau kev npaj - rau - vuam npoo.
Kev kho cua sov:Normalizing (N) lossis TMCP kom ntseeg tau tias -40℃cuam tshuam cov khoom.
Z-Test:Los ntawm -cov khoom tuab (Z15, Z25, Z35) rau cov nodes thiab cov phaj hnyav.
Ntawv pov thawj:Guaranteed 3.1 MTC (Mill Test Certificate) rau EN 10204, ua tim khawv los ntawm thib peb -cov neeg soj ntsuam (ABS/DNV/Lloyd's).
Tau txais cov lus hais hauv 24 teev
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. Chen Wei
Singapore · Loj Shipbuilding thiab Kho Pab Pawg
Nwg Nguyen Thi Hong
Haiphong · Shipbuilding Group of Vietnam
Mr. Rajesh Kumar
Kochi, India · Ship Repair Yard
FAQ
01.Kuv puas tuaj yeem siv EH32 steel phaj raws li kev hloov ncaj qha rau AH32 lossis DH32?
Technically yog, tab sis kev lag luam tsis muaj.
Tag nrho peb qib sib piv qhov tsawg kawg nkaus tawm lub zog (315 MPa). Txawm li cas los xij,EH 32undergoes cuam tshuam kuaj ntawm-40 degree, thaumAW 32yog kuaj ntawm0 degreethiabDH 32ntawm-20 degree.
Kev hloov kho (AH32 → EH32):Muaj kev nyab xeeb, tab sis koj them nyiaj ntau dua rau qhov tsis tsim nyog qis - qhov kub thiab txias yog tias koj lub nkoj tsis tau caij nkoj hauv Arctic dej.
Downgrading (EH32 → AH32): Txwv tsis publos ntawm kev faib cov koom haum (ABS, DNV, LR) rau cov khoom siv hull ua haujlwm hauv cheeb tsam txias.
Kev pom zoo:Ib txwm ua raws li lub nkoj tsim tshwj xeeb. Yog tias koj xav tau kev pab txiav txim siab ntawmAH32 vs DH32 vs EH32, [thov hu rau peb pab pawg kws tshaj lij] rau kev tshuaj xyuas cov khoom siv dawb.
02.Yuav ua li cas daim ntawv pov thawj EH32 shipbuilding steel phaj?
Txhua lub phaj EH32 yuav tsum tau nrog a3.1 Mill Test Certificate (MTC)Raws li EN 10204, txheeb xyuas los ntawm ib pawg neeg sib cais ywj pheej. Peb muab:
ABS, DNV, LR, BV, CCS, NK, RINAntawv pov thawj
Tag nrho cov tshuaj ladle tsom xam (C, Mn, Si, Nb, V, thiab lwm yam)
Charpy V-Cov txiaj ntsig cuam tshuamntawm -40℃(tsawg kawg 31J nruab nrab)
Ultrasonic kuaj (UT) raws liASTM A578 Cov Lus Qhia Tshwj Xeeblos yogTS EN 10160thaum thov.
03.Yog vuam EH32 nyuaj dua li vuam AH32 lossis DH32?
Tsis yog nrog cov txheej txheem raug.EH32 muaj cov nplej- cov khoom ua kom zoo (Nb, V) thiab qis carbon sib npaug (Ceq Tsawg dua lossis sib npaug li 0.38%), uas ua tau zoo dua weldability piv rau cov laus siab - zog steels. Txawm li cas los xij, peb qhov kev ceev faj yog qhov tseem ceeb:
| Parameter | Kev xav tau rau EH32 | Vim li cas |
|---|---|---|
| Preheat kub | 50-100℃(tsawg kawg) | Tiv thaiv kom tsis txhob muaj hydrogen- ua kom txias tawg |
| Thaum tshav kub kub input | Tsawg dua lossis sib npaug li 5.0 kJ / mm | Khaws -40℃cuam tshuam toughness hauv HAZ |
| Cov khoom siv | Tsawg-hydrogen electrodes (E7016-E) | Ua kom muaj zog thiab qis -kub ductility |
RauAW 32(0℃kev pabcuam), preheating feem ntau xaiv tau. RauDH 32(-20℃kev pab cuam), kev tswj nruab nrab yog xav tau. RauEH 32, nruj me ntsis ua raws li qhov tsim nyog Welding Procedure Specification (WPS) yog qhov yuav tsum tau ua.
04.Vim li cas EH32 kim dua AH32 thiab DH32?
Tus nqi hierarchy qhiaalloying nqithiabkev tswj zoo nruj:
AH32 (tus nqi qis tshaj):Basic grain refinement, cuam tshuam kuaj ntawm 0℃nkaus xwb. Haum rau cov qauv sab hauv thiab cov huab cua me me.
DH32 (nqi nruab nrab):Yuav tsum muaj kev xyaum ua kom zoo thiab -20℃cuam tshuam kev sim. Ntxiv deoxidation ntxiv tus nqi.
EH32 (tus nqi siab tshaj):
Chemistry:Tighter niobium (Nb) thiab vanadium (V) ranges rau -40℃kev ua tau zoo
Rolling:TMCP lossis normalizing yuav tsum tau, tsis raws li - dov
Kev sim:Txhua daim phaj ntau dhau -40℃Charpy kuaj (ntau dua 0℃lossis -20 degree)
Kev tshuaj xyuas:Feem ntau yuav tsum tau ua tim khawv rau - tog neeg soj ntsuam
Yam premium:EH32 raug nqi kwv yees12-18% ntau dua DH32thiab25-30% ntau dua AH32. Txawm li cas los xij, kev siv qib qis hauv Arctic ib puag ncig txaus ntshaikev puas tsuaj brittle fracture- tus nqi ntau tshaj li cov khoom txuag.
Cim npe nrov: eh32 nkoj tsim steel phaj, Tuam Tshoj eh32 nkoj tsim steel phaj lwm tus neeg
