CCS DH40 Marine Steel Phaj

Marine steel phaj hais txog cov qauv hlau siv hauv nkoj tsim. Nws suav hais tias yog qib marine thiab yuav tsum muaj peev xwm tiv taus cov teebmeem corrosive uas muaj nyob rau hauv ib puag ncig dej. Txhawm rau ua tiav qhov no, cov ntsiab lus tshwj xeeb alloying tau ntxiv rau cov qib no txhawm rau tiv thaiv kev tiv thaiv corrosion.Thaum cov pa roj carbon feem ntau tsis haum rau cov chaw nyob hauv dej hiav txwv, muaj ntau ntau qib marine carbon steels uas tau pom zoo los ntawm cov koom haum sib txawv rau kev siv nkoj tsim.

Cov qauv hlau rau lub nkoj hulls tau muab faib ua cov chav kawm muaj zog raws li nws qhov tsawg kawg nkaus yield zog: lub zog dav dav hlau thiab siab lub zog steel. Maine steel phaj hais txog kub dov steel phaj ua raws li cov kev cai ntawm lub classication haiv neeg rau kev tsim kho ntawm lub nkoj hull lug.

Muaj 9 lub koom haum kev faib tawm tseem ceeb hauv ntiaj teb.
A.B.S    American Bureau of Shipping
B.V.     Bureau Veritas
C.C.S. Tuam Tshoj Classification Society
D.N.V. Det Norske Veritas
G.L. Germanischer Lloyd
K.R. Korean Register of Shipping
L.R. Lloyd's Register of Shipping
N.K. Nippon Kaiji Kyokai
R.I.N.A Registro Italiano Navale

CCSDH40 steel yog ib hom kub dov siab tensile zog steel. Siab zog CCS shipbuilding steel los ntawm 12 qib ntawm 3 lub zog, DH40 yog ib qho ntawm cov qib. CCS DH40 qib steel phaj muaj lub zog ntawm 56,500 psi (390 MPa), thiab lub zog tensile kawg ntawm 74,000 - 94,500 psi (510-650 MPa). Tag nrho CCS DH40 shipbuilding Steel muab los ntawm Gnee tuaj yeem raug lees paub los ntawm CCS

CCS yog ib tug tswv cuab ntawm lub koom haum International Association of Classification Societies (IACS), tsim nyob rau hauv 1968. Lub CCS fleet tau lees paub los ntawm kwv yees li 116 tus chij thoob ntiaj teb. CCS kev pabcuam kev sib koom ua ke rau lub voj voog xa khoom sib txawv suav nrog kev tsim, tsim, tsim, kev tswj xyuas nkoj, kev tshuaj xyuas thiab kuaj cov ntaub ntawv / cov khoom thiab kev soj ntsuam tsis tu ncua los tswj cov chav kawm yog siv los ntawm freight, ferries, ro-ro, neeg nrog caij nkoj, yachts, cruise ships. , navy, LGN thiab lwm cov nkoj tshwj xeeb.

Qib AH40 steel yog lub zog cuam tshuam rau 0 ° C
Qib DH40 steel cuam tshuam quab yuam ntawm -20 ° C
Qib EH40 steel cuam tshuam quab yuam ntawm -40 ° C
Qib FH40 steel cuam tshuam quab yuam ntawm -60 ° C

Kev pab cuam tua blasting
Kev txhaj tshuaj blasting yog ib txoj hauv kev siv los ntxuav lossis txhuam cov hlau thaum txhim kho qhov chaw tiav. Kev txhaj tshuaj blasting yog siv nyob rau hauv yuav luag txhua qhov kev lag luam peb ua haujlwm. Tshwj xeeb tshaj yog nyob rau hauv shipbuilding, rail, qauv fabrication thiab lwm yam.

Specifications ntau
Thickness: 2.5-120 hli
Dav: 1000-3000mm
Ntev: Raws li kev thov

Tshuaj muaj pes tsawg leeg

Qib hlau	C	Si	Mn	P	S	Als
Qib AH40	≤ 0.18	≤0.50	0.9-1.6	≤ 0.035	≤ 0.035	≥0.015
Qib DH40	≤ 0.18	≤0.50	0.9-1.6	≤ 0.035	≤ 0.035	≥0.015
Qib EH40	≤ 0.18	≤0.50	0.9-1.6	≤ 0.035	≤ 0.035	≥0.015
Qib FH40	≤ 0.18	≤0.50	0.9-1.6	≤ 0.035	≤ 0.035	≥0.015

Kev ua haujlwm rau qib sib txawv
Qib D, E (DH32, DH36, EH 32, EH 36)
Qib D thiab E series (inlcuding AH32/36, DH32, DH36, EH32, EH36) shipbuilding steel daim hlau yuav tsum tau zoo kub tsis tshua muaj toughness thiab zoo vuam kev kawm. Kev tsim cov khoom muaj zog shipbuilding steel phaj yuav tsum tau normalized los ntawm kev tswj dov thiab tswj cov cua txias lossis cua sov txheej txheem nrog cov khoom tiav ntau dua. Nyob rau tib lub sijhawm, cov hlau purity sab hauv ntawm cov khoom siv yuav tsum muaj siab, tshwj xeeb tshaj yog cov ntsiab lus ntawm S, P, N, 0 thiab H hauv cov hlau yuav tsum tau tswj nruj me ntsis.

Alloy Elements Ntxiv los txhim kho Toughness
Txhawm rau kom ntseeg tau tias kev ua tau zoo ntawm cov nkoj nkoj muaj zog, micro-alloying tshuab tau txais yuav. Los ntawm kev ntxiv Nb, V, Ti thiab lwm yam alloying ntsiab rau cov hlau, ua ke nrog kev tswj dov txheej txheem, cov nplej yog refined thiab lub toughness yog zoo dua.
Kev taw qhia ntawm Kev Txhim Kho rau Shipbuilding Plate
Lub zog muaj zog, siab specification, nrog rau lub nkoj loj loj thiab kev nyab xeeb, thiab kev hloov ntawm txheej txheej, qhov kev thov rau cov vaj huam sib luag A-chav kawm tau maj mam txo qis, thiab qhov kev thov rau cov vaj huam sib luag muaj zog yog nce, uas yog concentrated hauv cov nkoj loj. ntawm 5m dav. Phaj, 200-300mm thickness tshwj xeeb tuab nkoj board.

Mechanical Properties

Qib hlau Yield point / MPa Tensile point / MPa Elongation/% Kub / / ° C V-type impact test Akv/J ≤ 50MM 50-70 hli 70-100 hli Qib AH40 ≥390 510-660 ≥ 20 0 41/21 - - Qib DH40 ≥390 510-660 ≥ 20 -20 41/21 - - Qib EH40 ≥390 510-660 ≥ 20 -40 41/21 - - Qib FH40 ≥390 510-660 ≥ 20 -60 41/21 - -