Puas yog AH36 Steel Sib npaug rau S355 Hlau? Daim Ntawv Qhia Kev Ua tiav
Yog tias koj ua haujlwm hauv kev tsim vaj tsev, kev tsim nkoj, lossis kev yuav khoom hlau, koj yuav ntsib cov lus nug:YogAH36 hlauSib npaug rau S355 steel?Cov lus teb luv luv yog:nws nyob ntawm seb koj txhais li cas "sib npaug."
Thaum ob qib sib qhia qhov tsawg kawg nkaus tawm lub zog ntawm355 MPa rau, kho lawv li kev hloov pauv tuaj yeem yog qhov raug nqi ntau -thiab muaj peev xwm txaus ntshai- yuam kev. Phau ntawv qhia no rhuav tshem qhov sib txawv tseem ceeb ntawm ob qib nrov steel.
Teb ceev: Yog nyob rau hauv lub zog, tsis nyob rau hauv daim ntawv thov
AH36 thiab S355 yogtsis ncaj equivalents. Lawv raug tswj hwm los ntawm cov qauv sib txawv thiab raug tsim los rau ntau qhov chaw. Lawv txoj kev sib raug zoo yog piav raws li:
Lub zog sib npaug: Ob leeg muaj qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa.
Daim ntawv thov -Tshwj xeeb: AH36 yog marine -qib steel rau nkoj thiab offshore platforms. S355 yog cov qauv hlau dav dav rau cov tsev, txuas hniav, thiab av-raws li cov haujlwm.
Xav txog qhov no: tej zaum lawv yuav muaj tib "cov leeg" (lub zog), tab sis AH36 yog tsim los kom muaj sia nyob hauv ib puag ncig dej ntsev, thaum S355 yog tsim rau lub neej hauv av.
AH36 vs. S355: Sab-los ntawm-Side Comparison
1. Mechanical Properties: Ib qho kev sib tw kaw
Mechanical zog ntawm ob qib yog qhov zoo sib xws. Piv txwv li, rau tus qauv thickness tsawg dua los yog sib npaug rau 16 hli, ob qho tib si AH36 thiab S355JR muaj qhov tsawg kawg nkaus yield zog ntawm 355 MPa.
| Khoom | AH36 (ASTM A131) | S355JR (EN 10025) |
|---|---|---|
| Yield zog (tsawg dua lossis sib npaug li 16mm) | Ntau dua lossis sib npaug li 355 MPa | Ntau dua lossis sib npaug li 355 MPa |
| Tensile zog | 490 - 620 MPa | 470 - 630 MPa |
| Elongation | Ntau dua lossis sib npaug li 21% | Ntau dua lossis sib npaug li 22% |
2. Chemical Composition thiab Testing: Qhov Kev Txiav Txim Siab
Qhov no yog qhov uas ob qib sib txawv. AH36 muaj kev tswj nruj dua ntawm nws cov tshuaj lom neeg muaj pes tsawg leeg (kub tsom xam) kom ntseeg tau tias nws qhov kev ua tau zoo nyob rau hauv ib puag ncig marine.
| Element (max %) | AH36 (A131) | S355JR (EN 10025) |
|---|---|---|
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.18 | Tsawg dua lossis sib npaug li 0.27 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.045 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.045 |
Qhov tseem ceeb tshaj, covCharpy V-ntiv tes ntsuas ntsuascov kev xav tau txawv. Qhov kev ntsuam xyuas no ntsuas lub steel lub toughness ntawm ib tug tshwj xeeb kub.
AW 36yuav tsum muaj qhov cuam tshuam tsawg kawg nkaus ntawm 34 Joules ntawm0 degree.
S355 JRyuav tsum muaj qhov cuam tshuam tsawg kawg nkaus ntawm 27 Joules ntawm20 degree.
Qhov no txhais tau tias AH36 tau lees tias yuav nruj dua ntawm qhov kub qis (0 degree) dua li tus qauv S355JR qib (20 degree).
3. Txuj thiab kev siv: Keeb Kwm Zaj Dab Neeg
AH36: Ua raws liASTM A131 / A131Mtxheem. Nws yog "siab dua-lub zog steel" tshwj xeeb tsim raushipbuilding thiab mobile offshore drilling units. Qhov "A" hauv AH36 txhais tau tias nws yog "nkoj" hlau. Nws cov ntawv thov tseem ceeb suav nrog cov qauv hull, bulkheads, thiab decks ntawm dej hiav txwv- mus rau nkoj.
S355: Ua raws liTS EN 10025txheem. Nws yog "tsis yog- alloy structural steel" siv nyob rau hauv ntau yam av- raws li cov qauv siv, suav nrogchoj Cheebtsam, fais fab nroj tsuag, cua yees, thiab mechanical engineering.
S355 puas tuaj yeem siv ua "Sib npaug" rau AH36?
Cov kws tshaj lij hauv kev lag luam tawm tswv yim tawm tsam kev siv S355 (lossis lwm yam qauv hlau zoo li Q345B lossis A572 Gr.50) raws li kev hloov ncaj qha rau AH36 hauv thawj daim ntawv thov kev tsim nkoj.
Thaum lawv zoo sib xws hauv lub zog, lawv tsis muaj qhov tshwj xeeb zoo thiab kev tiv thaiv corrosion xav tau rau ib puag ncig marine. Kev siv qhov tsis yog- pom zoo "sib npaug" tuaj yeem cuam tshuam lub nkoj kev ncaj ncees thiab kev nyab xeeb. Raws li ib qhov chaw muab tso rau nws, "lawv tsuas yog siv tau rau qee qhov tsis tseem ceeb ntawm cov nkoj".
Qhov txawv ntawm S355 yog qhov sib tw ze tshaj plaws?
Yog tias koj tab tom nrhiav rau qib S355 uas zoo dua tsom iav qhov tawv ntawm AH36, koj yuav tsis xaiv S355JR. Es tsis txhob, koj yuav saibS355J0(kuaj ntawm 0 degree) los yogS355J2(kuaj ntawm -20 degree), uas muaj cov kev cai nruj dua.
Txawm li cas los xij, txawm tias cov qhab nia no tsis yog qhov zoo tshaj plaws, raws li AH36 tus qauv tseem tswj hwm lwm cov ntsiab lus xws li niobium (Nb) thiab vanadium (V) kom zoo - kho nws cov khoom.
vim li cas ho xaiv peb?
Peb cog lus tias yuav muab cov ntaub ntawv pov thawj ntawm lub Hoobkas muaj tseeb thiab pov thawj los ntawm Tuam Tshoj Classification Society (AH36 steel) thiab cov ntawv pov thawj tshuaj xyuas cov khoom nrog rau cov khoom. Qhov no yog ib qho tseem ceeb heev uas yuav tsum tau rau lub shipyard warehouse txais txheej txheem.
Cov kev qhia tshwj xeeb (AH36 A 6-40mm) yog nyob rau hauv cov khoom txaus thiab tuaj yeem txiav mus rau qhov ntev raws li cov neeg siv khoom xav tau. Qhov tshwj xeeb no pab cov chaw nres nkoj txo cov khoom pov tseg los ntawm cov khoom seem thiab txo cov nqi yuav khoom.
Raws li qhov loj ntawm qhov kev txiav txim thiab keeb kwm ntawm kev koom tes, peb tuaj yeem muab cov nqe lus them nqi sib tw los pab lub nkoj ua kom zoo dua nws cov nyiaj ntsuab.
ib - nres kev daws teeb meem
pab neeg tshaj lij
siab zoo
Xaiv YUXIN steel pawg, thiab qhov koj yuav tsis yog cov hlau phaj nkaus xwb, tab sis kuj tseem muaj kev lav phib xaub tiav thiab muaj lub luag haujlwm.
Peb qhov chaw nyob
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FAQ
01.Yog tias S355JR muaj cov khoom zoo sib xws rau AH36, vim li cas kuv thiaj tsis tuaj yeem siv nws rau kev tsim khoom nkoj?
Thaum ob leeg muaj 355 MPa yam tsawg kawg nkaus lub zog,Cov koom haum kev faib tawm (xws li ABS, DNV, lossis CCS) tswj hwm cov cai nruj duarau kev cuam tshuam toughness thiab tshuaj muaj pes tsawg leeg uas cov qauv S355JR tsis ua raws.
AH36 xav tau34J cuam tshuam lub zog ntawm 0 degreeS355JR tsuas yog xav tau27J ntawm 20 degree.
AH36 tseem muaj kev txwv nruj dua ntawm Carbon Equivalent (CEV) thiab impurities (P, S) kom ntseeg tau tias weldability thiab tsis kam rau lamellar tearing nyob rau hauv hnyav marine tej yam kev mob.
Kev siv cov hlau tsis yog- pom zoo "sib npaug" yuav ua rautsis ua hauj lwm thaum lub sij hawm thib peb - tog neeg soj ntsuam xyuasthiab ua rau koj lub nkoj tsis muaj kev faib tawm.
02.Puas muaj qhov ncaj qha European (EN) sib npaug rau AH36? Kuv puas tuaj yeem hloov AH36 nrog S355J2?
Muajtsis muaj ncaj qha 1: 1 EN sib npaug, masS355J2(kuaj ntawm -20 degree) yog ze rau hauv toughness dua S355JR. Txawm li cas los xij,tseem tsis tso cairau lub hauv paus hull structures. Qhov sib txawv tseem ceeb yog:
Daim ntawv pov thawj: AH36 yuav tsum tau muab nrogmill daim ntawv pov thawj pom zoo los ntawm kev faib pawg neeg(eg, LR, BV, CCS). S355J2 feem ntau tsuas yog xav tau lub Hoobkas tus kheej- tshuaj xyuas.
Kev tshuaj xyuas: Lub nkoj nkoj yuav tsum nruj duaKev kuaj ultrasonic (UT)rau kev puas tsuaj sab hauv (laminations, tawg) dua li cov qauv S355 daim hlau.
Yog tias koj qhov project xav tau kev pom zoo hauv chav kawm, koj yuav tsum yuavnkoj - cov phaj qib nrog cov ntawv teev npe-tsis yog tus qauv coj mus muag S355J2.
03.Kuv puas tuaj yeem siv AH36 hloov S355 rau thaj av- raws li tus choj lossis siab- nce siab?
04.Kuv puas tuaj yeem siv cov khoom siv vuam txheej txheem tsim los rau S355 rau vuam AH36 steel?
Tsis pom zoo.Txawm hais tias ob qib yog weldable, AH36 yog azoo -nkoj nkoj tsim steeluas yog rhiab heev raudiffusible hydrogen-uas tuaj yeem ua rau txias tawg (hydrogen-induced cracking) hauv cheeb tsam weld.
Koj yuav tsum xaiv cov khoom siv weldingteev nyob rau hauv kev faib pawg neeg cov khoom pom zoo. Nrhiav cov xov hlau / fluxes nrog"Y" (tuaj yeem)thiab"H" (tsawg hydrogen)npe (piv txwv li, ABS 3YSA H10 los yog sib npaug).
Standard S355 consumables tej zaum yuav tsis tau undergone qhov yuav tsum tau-20℃cuam tshuam kev kuaj rau cov hlau vuam. Yog tias tus nqi cuam tshuam qhov cuam tshuam tsis ua rau kev soj ntsuam xyuas, tag nrho cov welded sib koom ua ke yuav raug tsis lees paub, ua rau cov nqi rov ua dua tshiab thiab ua haujlwm qeeb.
Tuam Tshoj ib qho - nres cov khoom siv hlau
Los ntawm xyoo ntawm kev nkag siab thiab nag lossis daus ntawm cov hlau, Yuxin Group tam sim no tau dhau los ua cov txheej txheem steel thiab cov chaw tsim khoom, muab ntau yam khoom rau ntau lub tuam txhab tsim kho thiab cov tuam txhab steel qauv thoob ntiaj teb. Ua tsaug rau Yuxin Group txoj kev tshaj lij thiab kev ncaj ncees, nws tau dhau los ua lub ntiaj teb - muaj npe nrov lag luam.
