Tuam Tshoj ABS Pom Zoo AH36 DH36 BV Qib Marine Steel Phaj Chaw tsim tshuaj paus thiab tsum | Ruiyi

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Marine steel phaj yog ib qho tseem ceeb hauv kev tsim cov nkoj, thiab kev xaiv cov khoom siv hlau tseem ceeb heev. Feem ntau siv nkoj phaj steel qauv xws li AH32, AH36, DH32, DH36, D36, E36, F36 thiab HSLA series steel.Sab saum toj HlauChaw tsim tshuaj paus khoom ABS pom zoo Marine Steel Phaj nrog ntau qhov sib txawv. ABS A thiab ABS B yog hom qauv hlau uas siv rau kev tsim nkoj. Cov qib steel no txhais tau tias yog lub zog zoo tib yam thiab cov qib no tau lees paub los ntawm American Bureau of Shipping (ABS) kom lawv tuaj yeem siv rau hauv kev tsim nkoj.

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Shipbuilding steel phaj hais txog cov pa roj carbon thiab alloy steel phaj siv nyob rau hauv offshore thiab marine kev tsim kho, ntau qib yog A, B, D, E, AH32/36/40, DH32/36/40, thiab EH32/36/40 uas ranges ntawm txawv zog. Cov phaj feem ntau yog siv los tsim cov nkoj hulls, bulkheads, sab saum toj decks thiab hatch npog rau tankers, bulk carriers, thawv ships thiab LNG carriers.

AW 36, DH 36, EH36 Hlau - Kev Siv Siab Siab Hlau hauv Offshore & Marine

Rau lub zog siabnkoj tsim phajs zoo li AH36, DH36, EH36 steel phaj, lawv tau dav siv nyob rau hauv qhov chaw muaj kev ntxhov siab ntawm cov nkoj, piv nrog lub zog dav hlau, lawv muab tib lub zog nrog cov tuab me.

Shipbuilding hlaucov khoom siv hauv cov pa roj carbon thiab alloy steel, sib xws nrog lub zog siab, tsis tshua muaj kub thiab kub kub input soldering.

Qib: A, B, D, E, AH32/36/40, DH32/36/40, EH32/36/40

Raws li nws lub zog tawm los, shipbuilding phaj tuaj yeem muab faib ua cov qib hauv qab no:

Qib A steel yog qhov cuam tshuam rau qhov kub thiab txias (20 ° C).
Qib B steel cuam tshuam quab yuam ntawm 0 ° C.
Qib D steel cuam tshuam quab yuam ntawm -20 ° C.
Qib E steel cuam tshuam quab yuam ntawm -40 ° C.
High-strength shipbuilding steel phaj tuaj yeem muab faib ua: AH32, DH32, EH32; AH36, DH36, EH36 thiab AH40, DH40, EH40.
Cov qib dav dav A, B, D, thiab E yog qhov txawv raws li qhov ntsuas kub ntawm cov hlau. Qhov cuam tshuam qhov tseem ceeb ntawm txhua qib ntawm steel yog tib yam.
High-intensity hull qauv steel preheating yuav tsum tau: Rau tag nrho cov AH, DH, EH phaj thickness ntau tshaj 30 hli lub kaum sab xis, pob qij txha, yuav tsum preheating rau 120 ~ 150 ° C ua ntej welding.
Rau lub thickness ntawm lub phaj ≤ 30mm, qhov kub thiab txias yog qis dua 5 ° C, preheated rau 75 ° C; ambient kub hauv qab 0 ° C, preheated rau 75 ~ 100 ° C.
shipbuilding steel Chemical Composition

Cov ntsiab lus	C	Mn	Al	Si	P	S
AW 32	≤ 0.18	0.7-1.60 Nws	≥0.015	0.10-0.50 Nws	≤ 0.04	≤ 0.04
DH 32	≤ 0.18	0.90-1.60 Nws	≥0.015	0.10-0.50 Nws	≤ 0.04	≤ 0.04
EH 32	≤ 0.18	0.90-1.60 Nws	≥0.015	0.10-0.50 Nws	≤ 0.04	≤ 0.04
AW 36	≤ 0.18	0.7-1.60 Nws	≥0.015	0.10-0.50 Nws	≤ 0.04	≤ 0.04
DH 36	≤ 0.18	0.90-1.60 Nws	≥0.015	0.10-0.50 Nws	≤ 0.04	≤ 0.04
EH 36	≤ 0.18	0.90-1.60 Nws	≥0.015	0.10-0.50 Nws	≤ 0.04	≤ 0.04

C (carbon) yog ib qho tseem ceeb ntxiv dag zog rau cov hlau, tab sis qhov nce hauv C cov ntsiab lus txo qhov kub-kub cuam tshuam toughness ntawm steel thiab deteriorates lub weldability ntawm hlau. Yog li ntawd, nws yog ib qho tsim nyog los tswj cov ntsiab lus C hauv cov hlau.

shipbuilding steel phaj Properties
Cov Qib Steel	* Thickness / hli	Tawm taw tes / MPa	Tensile zog / MPa	Elongation / %	V-type impact test
					Kub / ℃	Qhov nruab nrab cuam tshuam nqus dej ua haujlwmA_{kv ua}/J
					Kub / ℃	Ntsug	Kab rov tav
A	≤ 50	≥235	400-490 Nws	≥ 22	-	-	-
B	≤ 50	≥235	400-490 Nws	≥ 22	0	≥ 27	≥ 20
D	≤ 50	≥235	400-490 Nws	≥ 22	-10	≥ 27	≥ 20
E	≤ 50	≥235	400-490 Nws	≥ 22	-40	≥ 27	≥ 20
AW 32	≤ 50	≥315	440-590 : kuv	≥ 22	0	≥31	≥ 22
DH 32	≤ 50	≥315	440-590 : kuv	≥ 22	-20	≥31	≥ 22
EH 32	≤ 50	≥315	440-590 : kuv	≥ 22	-40	≥31	≥ 22
AW 36	≤ 50	≥355	490-620 : kuv	≥ 22	0	≥34	≥ 24
DH 36	≤ 50	≥355	490-620 : kuv	≥ 22	-20	≥34	≥ 24
EH 36	≤ 50	≥355	490-620 : kuv	≥ 22	-40	≥34	≥ 24