Steel plate for shipbuilding

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Carbon steel plate

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Product introduction

Marine steel plates refer to hot-rolled steel plates used to manufacture ship structures, which are produced in accordance with the construction specifications of classification societies. Due to the harsh working environment of ships, the hull is subject to chemical corrosion, electrochemical corrosion, corrosion by marine organisms and microorganisms from seawater; the hull is subjected to large wind and wave impacts and alternating loads; the shape of the ship makes the processing method complicated, etc., which puts forward strict requirements on the steel used in the hull structure.First of all, good toughness is the most critical requirement. In addition, it is also required to have high strength, good corrosion resistance, welding performance, processing performance and surface quality. In order to ensure quality and sufficient toughness, the chemical composition of steel is required to have a Mn/C ratio of more than 2.5, and there are also strict requirements for carbon equivalent, and it must be produced by a steel mill approved by the ship inspection department.Hull structural steel is divided into general strength structural steel and high strength structural steel according to the minimum yield point. Hull structural steel is further divided into general strength steel and high strength steel. General strength steel is divided into four grades A, B, D, and E according to quality; high strength steel is divided into two strength grades and three quality grades AH32, DH32, EH32, AH36, DH36, and EH36 according to quality.

The general strength structural steel specified in the China Classification Society specifications is divided into four quality grades: A, B, C, and D (i.e., CCSA, CCSB, CCSC, and CCSD); the high-strength structural steel specified in the China Classification Society specifications is divided into three strength levels and four quality grades.

Material requirements

Shipbuilding steel plates refer to thin and thick steel plates produced from special shipbuilding structural steels for the manufacture of hull structures of ocean-going, coastal and inland ships. Shipbuilding structural steels include carbon steel and low alloy steels, and the steel grades end with C (ship). Carbon steels include 2C, 3C, 4C, and 5C, and low alloy steels include 12MnC, 16MnC, 15MnTiC, 14MnVTiReC and other steels. The thickness is 2.5~50 mm.

Product information

Model No.	Rolled-28	Technique	Hot Rolled
Application	Ship Plate	Stock	Stock
Steel Grade	A B D E AH32 AH36 AH40 DH32 DH36 DH40 EH32 EH36 EH40 FH32 FH36 FH40 AH420 DH420 EH420 AH460 DH460 EH460 AH550 DH550 EH550 A0420 D0420 E0420 A0460 D0460 E0460 AH620 AH690 DH620 DH690 EH620 EH690	Width	1800-4000mm
Thickness	6-50mm	Certificates	CCS ABS LR BV DNV NK KR RS RINA Nine classification society standards GB/T712
Transport Package	By Bulk Vessel / FCL	Specification	Thickness: 6-50mm
HS Code	7208250000	Origin	China

shipbuilding steel-marine plate mechanical properties

GRADE	YS.(≥Mpa)	T.S.(Mpa)	EL.(≥%)	(°C)	AKV(≥],L#T)
A	235	400-490	22	*****	*****
B	235	400-490	22	0℃	27#20
D	235	400-490	22	-10℃	27#20
E	235	400-490	22	-40℃	27#20
AH32	315	440-590	22	-0℃	31#22
DH32	315	440-590	22	-20℃	31#22
EH32	315	440-590	22	-40℃	31#22
AH36	355	490-620	21	-0℃	34#24
DH36	355	490-620	21	-20℃	34#24
EH36	355	440-620	21	-40℃	34#24

1.Available product grade, specifcation and delivery condition

Classification society	Steel Type	Steel Grade	Thickness (mm)	Delivery Condition	Remarks
LR BV ABS CCS DNV KR NK RINA RS	Ordinary-strength Hull Structural Steel	A/B/D/E	≤100	TM	RS≤8O: RINA
		A/B	≤50	AR
		A/B	≤130	N
		D	≤35	AR
		D	≤130	N
		E	≤130	N
LR BV ABS CCS DNV KR NK RINA RS	Higher-strength Hull Structural Steel	AH32/DH32 AH36/DH36	≤20	AR
			≤40	CR(NR)
			≤100	N	RS≤80
		EH32/EH36	≤100	N	RS≤80
		AH/DH/EH32/36	≤100	TM	LR/NK/KB/RINA≤80;BV≤88
		AH40/DH40/EH40	≤100	TM	LR/NK/KR/RINA≤68; BV≤88
LR ABS CCS DNV RINA RS	Extra High Strength Steel	AH420~FH690 AO43~FO70 A0420~F0690	≤160/90	QT	RINA≤5O: NK/KR/BV not include
LR ABS CCS DNV RINA RS	Extra High Strength Steel	AH420~EH500 AQ43~EQ51 A0420~EO500	≤80	TM	LR/KR/RINA not include
LR NK RINA RS	High-Toughness Hull Structural Steel		≤68	TM
LR ABS DNV CCS RS	Brittle Crack Arrest Steel	EH36/EH40/EH47-BCA1 COD	≤100	TM	Ultra Large Contain-er Carrier
LR ABS DNV CCS RS	Brittle Crack Arrest Steel	EH40/EH47-BCA2 COD	≤100	TM
LR BV CCS ABS DNV NK KR	Carbon-manganese steel for low temperature service	LTAH27S~LTEH36	≤80	TM
		LTAH27S~LTEH36	≤80	N	Liquefied petroleum gas and liquid ammonia storage tanks
		LTFH27/32/36 LTAH40~FH40	≤68	TM
		410/460/510/550LE/LF CL-1-2~CL-川1-4 V/VH32/VH36-〇XX NV2-2/3/4/4L,NV4-2/3/4/4L KL24A/B,KL27/33/37 RL235A/B,RL325A/B,RL360	≤40	TM
LR BV ABS CCS DNV KB RS	Nickel alloy steel for low temperature service	9Ni/X8Ni9/X7Ni9/9N490	≤50	QT	LNG carrier storage tank and fuel tank
		9Ni/X8Ni9/X7Ni9/9N490	≤30	NNT
		5Ni/X12Ni5/5N390	≤50	QT
CCS	Clad steel plate	AH32/36,DH32/36	≤30	TM	Chemical Carrier nuclear powered icebreaker
CCS		S22053,S22253S32205,S31803	≤4
BV		AH/DH/FH32/36/40	≤49
BV		S32205,S318035304L/316L/317	≤5
EN 10225-1	Offshore engineering plate	S355MLO(S355G7/G9+M) S420MLO(S420G1+M) S460MLO(S460G1+M)	≤80	TM	Offshore platform
API		API2W-50/60	≤80	TM
ASTM		A514/514M Gr.Q(MODIFIED) A517/517M Gr.Q(MODIFIED)	≤178	QT

Warehouse Storage

As a steel supplier in Shandong Province, we have our own factory as follows: the seamless stainless steel pipe factory located in Wuxi. A welding stainless steel pipe factory located in Wuxi. A stainless steel coil processing workshop for cutting, winding, and unwinding steel coils.

Packing and shipping

Now the main business scope of our company covers various kinds of Stainless steel and carbon steel materials , such as hot rolled / cold rolled stainless steel coils / sheet , Seamless / welded stainless steel pipe ( tube ).

Technology

Customer conversation

We provide the products consultation , purchase plan suggestion , logistic service ( including the shipment service , custom works ,etc ).

Application field

The predecessor of Shandong Province Reliance Steel Material Co ., Ltd . founded in 2012, it belongs to Industry Bureau of Shandong Province . Aims to promote the development of Stainless / Carbon steel industry of .

FAQ

Q1:Can you send samples?

A:Of course, we can provide customers with free samples and express shipping service to all over of the world.

Q2:What product information do I need to provide?

A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.

Q3:It's my first time to import steel products, can you help me with it?

A:Sure,we have agent to arrange the shipment, we will do it together with you.

Q4:What about product prices information?

A:Prices various according to periodic price changes of raw materials.

Q5:What ports of shipment are there?

A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.

Q6:What is your terms of payment ?

A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.

Carbon steel plate