Cov hauv qab no yog cov lus qhia ntxaws ntxaws rau ASTM A131 marine steel daim hlau tsim nyob rau hauv Suav teb, nrog qib A / AH36 / DH36:

Standards thiab Specifications

 

Execution Standard: ASTM A131 yog tus qauv rau marine structural steel tsim los ntawm American Society for Testing and Materials, npog marine steel phaj ntawm ntau qib xws li lub zog dav mus rau siab zog.

Classification Society Certification: Ntxiv rau kev ua raws li tus qauv ASTM A131, cov hlau phaj no tsim nyob rau hauv Suav teb feem ntau yuav tsum tau txais ntawv pov thawj los ntawm ntau lub koom haum kev faib tawm, xws li Tuam Tshoj Classification Society (CCS), American Bureau of Shipping (ABS), Det Norske Veritas ( DNV), thiab lwm yam.

Tshuaj muaj pes tsawg leeg

 

Qib A: Cov ntsiab lus carbon feem ntau yog qis dua {{0}}.21%. Cov ntsiab lus manganese nyob ntawm 0.80% mus rau 1.10%, thiab cov ntsiab lus silicon yog nyob nruab nrab ntawm 0.10% thiab 0.35%. Cov ntsiab lus ntawm cov teeb meem xws li sulfur thiab phosphorus yog tswj nruj me ntsis.

Qib AH36: Raws li Qib A, microalloying yog nqa tawm los ntawm kev ntxiv me me ntawm cov hlau alloying xws li niobium, vanadium, thiab titanium. Cov ntsiab lus carbon feem ntau yog qis dua {{0}}.18%. Cov ntsiab lus manganese nyob ntawm 0.70% mus rau 1.60%, thiab cov ntsiab lus silicon nyob nruab nrab ntawm 0.10% thiab 0.50%.

Qib DH36: Cov tshuaj lom neeg muaj pes tsawg leeg zoo ib yam li AH36, tab sis kev tswj cov khoom tsis huv xws li phosphorus thiab sulfur yog nruj dua. Nws cov ntsiab lus carbon feem ntau yog qis dua 0.18%. Cov ntsiab lus manganese nyob ntawm 0.90% mus rau 1.60%, thiab cov ntsiab lus silicon nyob nruab nrab ntawm 0.10% thiab 0.50%.

 

 

ASTM A131M 1	TIAB SA 5521	JIS G3106	BS LR	GB712
Qib A shipbuilding steel	A	Qauv: SM400A	A	A

 

 

 

Mechanical Properties

 

Qib A: Lub zog tawm los tsis tsawg dua 235 MPa. Lub zog tensile yog li ntawm 400 MPa rau 520 MPa, thiab elongation tsis tsawg dua 22%. Nws muaj qee qhov toughness ntawm qhov kub thiab txias.

Qib AH36: Lub zog tawm los tsis tsawg dua 355 MPa. Lub zog tensile yog li ntawm 490 MPa rau 620 MPa, thiab elongation tsis tsawg dua 17%. Nws muaj lub zog zoo thiab muaj zog thiab tuaj yeem ua kom muaj kev nyab xeeb ntawm lub nkoj lub nkoj hull hauv qab hiav txwv hnyav.

Qib DH36: Lub zog tawm los tsis tsawg dua 355 MPa. Lub zog tensile yog li ntawm 490 MPa rau 620 MPa, thiab elongation tsis tsawg dua 17%. Nws muaj cov kev xav tau siab dua rau kev cuam tshuam qhov hnyav, thiab Charpy V-notch cuam tshuam lub zog ntawm -20 degree tsis tsawg dua 25 J.

Txheej txheem ntau lawm

 

Steelmaking: Advanced converter los yog hluav taws xob rauv steelmaking txheej txheem tau txais yuav nruj me ntsis tswj cov tshuaj muaj pes tsawg leeg thiab kub ntawm molten hlau. Los ntawm refining thiab nqus degassing cov txheej txheem, cov ntsiab lus ntawm impurities thiab gases nyob rau hauv steel yog txo los txhim kho lub purity ntawm hlau.

Rolling: Kub nruam dov lossis tswj dov txheej txheem yog siv. Los ntawm kev tswj tsis tau xws li dov kub thiab txo qhov sib piv, cov nplej loj yog refined los txhim kho lub zog thiab toughness ntawm steel daim hlau.

Kev kho cua sov: Raws li cov qib sib txawv thiab cov neeg siv khoom xav tau, cov ntawv hlau yuav tsum tau ua cov txheej txheem kho cua sov xws li normalizing thiab tempering los txhim kho cov khoom siv kho tshuab thiab microstructure ntawm cov hlau phaj.

 

 

 

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 Ua Hauv Tuam Tshoj ASTM A131 Shipbuilding Steel Phaj Nrog Qib A / Ah36 / Dh36 ABS CCS Dnv, 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: ua nyob rau hauv Suav teb astm a131 shipbuilding steel phaj nrog qib a / ah36 / dh36 abs ccs dnv, Tuam Tshoj ua nyob rau hauv Tuam Tshoj astm a131 shipbuilding steel phaj nrog qib a / ah36 / dh36 abs ccs dnv lwm tus neeg, Hoobkas