ASTM A131 yog cov qauv siv dav dav rau kev tsim cov hlau phaj hauv kev lag luam marine. Nov yog cov lus qhia ntxaws:

1. Cov txheej txheem txheej txheem

 

ASTM A131 yog tsim thiab luam tawm los ntawm American Society for Testing and Materials (tam sim no hu ua ASTM International). Nws muab cov kev cai dav dav thiab cov lus qhia rau kev tsim khoom, kev sim, thiab kev tswj xyuas zoo ntawm nkoj tsim cov hlau phaj kom ntseeg tau tias lawv tsim nyog rau kev siv hauv ntau yam kev siv dej hiav txwv.

2. Qib qeb

 

Cov qauv no suav nrog ntau qib ntawm cov hlau phaj, xws li Qib A, B, D, E, AH32, DH32, EH32, AH36, DH36, EH36, thiab lwm yam. Txhua qib muaj cov tshuaj sib txawv thiab cov khoom siv kho tshuab kom tau raws li cov kev xav tau sib txawv hauv kev tsim nkoj. Piv txwv li:

Qib A: Nws yog cov hom phiaj dav dav nrog cov kev xav tau ntawm lub zog yooj yim, haum rau qee qhov tseem ceeb ntawm cov qauv ntawm cov nkoj.

Qib E: Nws muaj cov kev xav tau ntau dua rau kev ua kom tawv nqaij, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias ib puag ncig, thiab feem ntau siv rau hauv cov cheeb tsam uas xav tau kev cuam tshuam zoo dua.

AH36 thiab DH36: Cov no yog cov qib siab zog. Qhov "H" qhia txog kev txhim kho los ntawm cov khoom tuab. Lawv feem ntau siv rau hauv kev tsim cov nkoj loj dua qhov muaj zog dua thiab zoo formability yuav tsum tau nqa cov khoom hnyav.

3. Tshuaj muaj pes tsawg leeg

 

Cov tshuaj muaj pes tsawg leeg sib txawv ntawm cov qib sib txawv. Feem ntau, nws tsuas yog muaj cov ntsiab lus xws li carbon (C), manganese (Mn), silicon (Si), sulfur (S), phosphorus (P), thiab qee zaum kuj tseem muaj cov khoom me me xws li npib tsib xee (Ni), chromium (Cr), thiab molybdenum (Mo) nyob ntawm seb cov qib yuav tsum tau ua. Piv txwv li:
| Element|Ntau yam rau qee qib |
| ---- | ---- |
| Carbon (C)|Feem ntau tsawg dua 0.21% (nws txawv raws qib) |
| Manganese (Mn)|Ntau yam ntawm ib ncig ntawm 0.60% mus rau 1.60% nyob ntawm qib |
| Silicon (Si)|Nyob ib ncig ntawm 0.10% - 0.50% feem ntau |
| Sulfur (S)|Txwv rau qhov siab tshaj plaws ntawm 0.035% lossis qis dua hauv qee kis |
| Phosphorus (P)|Tsis tas li txwv rau qhov siab tshaj plaws ntawm ib puag ncig 0.035% lossis tsawg dua hauv qee qib |

4. Mechanical Properties

 

Cov qib sib txawv muaj cov cuab yeej cuab tam sib txawv:

Yield zog: Piv txwv li, Qib A tej zaum yuav muaj qhov xav tau lub zog ntawm ib puag ncig 235 MPa, thaum qib zoo li AH36 muaj qhov yuav tsum tau muaj zog ntawm qhov tsawg kawg nkaus 355 MPa.

Tensile zog: Nws kuj txawv. Qib A feem ntau muaj lub zog tensile nyob rau hauv thaj tsam ntawm 400 - 520 MPa, thiab AH36 muaj lub zog tensile ntau yam uas feem ntau sib txawv, nyob ib ncig ntawm 490 - 620 MPa.

Elongation: Yam tsawg kawg nkaus elongation feem pua ​​yog teev kom cov hlau muaj ductility txaus. Piv txwv li, feem ntau cov qhab nia yuav tsum tau elongation nyob rau hauv thaj tsam ntawm 15% - 22% nyob ntawm seb lub thickness ntawm lub phaj.

Impact Toughness: Tshwj xeeb tshaj yog ib qho tseem ceeb rau cov qhab nia siv nyob rau hauv qis-kub los yog kev siv tseem ceeb. Piv txwv li, Qib E yuav tsum muaj kev cuam tshuam zoo ntawm -20 degree , thiab cov txiaj ntsig tshwj xeeb ntawm lub zog muaj txiaj ntsig tau teev tseg hauv tus qauv kom ntseeg tau tias cov hlau tuaj yeem tiv taus qhov cuam tshuam tam sim ntawd yam tsis muaj nkig.

 

 

 

Specification peb muab:

Thickness	3-200 hli
Dav	1500-4000 hli
Ntev	5000-15000 hli

 

 

 

 

5. Phaj Dimensions

 

Lub thickness ntawm ASTM A131 shipbuilding steel daim hlau tuaj yeem nyob ntawm ob peb millimeters mus rau qhov tuab tuab, feem ntau ntawm 3 hli mus rau 200 hli lossis ntau dua. Qhov dav thiab ntev kuj tuaj yeem sib txawv raws li qhov tseeb ntau lawm thiab cov neeg siv khoom xav tau, nrog qhov dav feem ntau yog li ntawm 1000 hli mus rau 4000 hli thiab ntev ntawm 3000 hli txog 18000 hli lossis lwm qhov ntev customized.

6. Cov cheeb tsam thov

 

Cov phaj hlau no tau siv dav hauv kev tsim kho ntawm txhua yam ntawm cov nkoj, suav nrog cov tub lag luam nkoj (xws li cov nkoj ntim khoom, cov tsheb thauj khoom loj, cov roj tankers), cov nkoj tub rog, nkoj nuv ntses, thiab tseem nyob hauv lub tsev ntawm cov qauv sab nrauv xws li ntab platforms thiab drilling. rigs. Lawv tsim cov txheej txheem tseem ceeb xws li daim phiaj hull, decks, bulkheads, thiab thav duab kom ntseeg tau tias tag nrho lub zog thiab kev ncaj ncees ntawm cov qauv marine.

 

 

 

Vim li cas thiaj xaiv peb?
Peb txaus siab rau peb lub peev xwm los muab cov kev cai daws teeb meem rau peb cov neeg siv khoom cov kev xav tau tshwj xeeb.
Peb txheeb xyuas thiab sib piv cov khoom dhau los thiab cov xwm txheej tam sim no ntawm peb ASTM A131 Shipbuilding Steel Phaj, thiab tsim cov txheej txheem tshiab thiab cov txheej txheem.
Peb cov neeg siv khoom ntseeg peb kom xa cov khoom zoo Cold-rolled Steel khoom raws sijhawm thiab ntawm kev siv nyiaj.
Peb nruj me ntsis siv cov kev pab cuam sov so thiab kev xav tom qab muag, ua raws li kev txhim kho kev ua haujlwm zoo.
Peb muab ntau hom Cold-rolled Steel khoom kom tau raws li cov neeg siv khoom xav tau.
Peb ua raws li cov neeg siv khoom-centric thiab hom-taw qhia kev lag luam lub tswv yim, thiab txuas ntxiv muab cov neeg siv khoom txhim khu kev qha thiab cov khoom zoo thiab cov kev pabcuam.
Peb lub Hoobkas tau cog lus los txhawb nqa cov qauv siab tshaj plaws ntawm kev nyab xeeb thiab zoo.
Txhua tus neeg ua haujlwm ntawm peb lub tuam txhab thiab txhua lub tuam haujlwm ua haujlwm ua ke los ua ke kev tswj hwm kev lag luam, kev tshaj lij thev naus laus zis, kev txheeb cais ntau thiab kev kawm ideological.
Peb cov khoom siv Cold-rolled Steel paub txog lawv cov kav ntev thiab kev ntseeg tau.
Relying ntawm superior tej yam kev mob thiab muaj zog zoo ntawm cov khoom loj, peb muaj peev xwm ua tau raws li qhov sib txawv ntawm peb cov neeg muas zaub.

Cim npe nrov: Tuam Tshoj ASTM A131 Shipbuilding Steel Phaj Chaw tsim tshuaj paus, khoom muag, Hoobkas