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RINA Grade AH36 DH36 EH36 FH36 Marine Steel Plate

RINA is a founding member of the International Association of Classification Societies(IACS),
formed in 1968. The RINA fleet is recognized by approximately 116 international flag authorities.
RINA integrated services for the complate shipping cycle including design, building, shipyard
management, inspection and testing of materials/components and regular inspections to maintain
the class are used by freight, ferries, ro-ro, passenger ships, yachts, cruise ships, navy, LGN and
other specialist carrier vessels.

Classification :

Shipbuilding Steel Plate（MOQ 10 Tons ~ 26 Tons)

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PRODUCT DETAILS

Brief introduction of marine steel plate

Marine steel plate refers to structural steel used in ship building. It is considered a marine grade and must be able to resist corrosive effects that are common in a water environment. To achieve this, special alloying elements are added to these grades in order to defend agaist corrosion.While most carbon steel is not suited for marine environments, there are several marine grade carbon steels that have been approved by the different societies for shipbuilding applications.

Structural steel for ship hulls is divided into strength classes according to its minimum yield strength: general strength structural steel and high strength structural steel. Maine steel plate refers to hot rolled steel plate produced in accordance with the requirements of the classication society for the construction of ship hull structures.

There are 9 main classification societies in worldwide.
A.B.S    American Bureau of Shipping
B.V.     Bureau Veritas
C.C.S.   China 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

RINA AH36 steel is a kind of hot rolled high tensile strength steel. Higher-strength RINA shipbuilding steel comes in 12 grades of 3 strengths,AH36 is one of the grades. The RINA AH36 grade steel plates have yield strength of 315 MPa), and ultimate tensile strength of 440-570 MPa.

RINA is a founding member of the International Association of Classification Societies(IACS),formed in 1968. The RINA fleet is recognized by approximately 116 international flag authorities. RINA integrated services for the complate shipping cycle including design, building, shipyard management, inspection and testing of materials/components and regular inspections to maintain the class are used by freight, ferries, ro-ro, passenger ships, yachts, cruise ships, navy, LGN and other specialist carrier vessels.

Grade AH36 steel is the impact force subjected to 0 ° C
Grade DH36 steel impact force at -20 ° C
Grade EH36 steel impact force at -40 ° C
Grade FH36 steel impact force at -60 ° C

Shot blasting service
Shot blasting is a method used to clean or polish steel when enhanced surface finishes are required. Shot blasting is used in almost every industry we serve. Especially in shipbuilding, rail,structural fabrication and more.

Specifications range
Thickness:2.5-120mm
Width:1000-3000mm
Length: As request

Chemical composition and mechanical properties

Chemical Composition

Steel grade	C	Si	Mn	P	S	Als
Grade AH36	≤0.18	≤0.50	0.9-1.6	≤0.035	≤0.035	≥0.015
Grade DH36	≤0.18	≤0.50	0.9-1.6	≤0.035	≤0.035	≥0.015
Grade EH36	≤0.18	≤0.50	0.9-1.6	≤0.035	≤0.035	≥0.015
Grade FH36	≤0.18	≤0.50	0.9-1.6	≤0.035	≤0.035	≥0.015

Processing for Different Grades
Grade D, E (DH32, DH36, EH 32, EH 36)
Grade D and E series (inlcuding AH32/36, DH32, DH36, EH32, EH36) shipbuilding steel plates require good low temperature toughness and good welding performance. The production high-strength shipbuilding steel plate needs to be normalized by means of controlled rolling and controlled cooling or heat treatment processes with more complete equipment. At the same time, the internal steel purity of the supplied billets is required to be high, especially the content of S, P, N, 0 and H in the steel should be strictly controlled.

Alloy Elements Added to Improve Toughness
In order to ensure the performance of high-strength ship plates, micro-alloying technology is adopted. By adding Nb, V, Ti and other alloying elements to the steel, combined with the controlled rolling process, the grain is refined and the toughness is improved.
Direction of Development for Shipbuilding Plate
High strength, high specification, with the ship's large-scale and safety, and changes in coating specifications, the demand for ordinary A-class panels is gradually reduced, and the demand for high-strength panels is increasing, which is concentrated in large ships of 5m wide. Plate, 200-300mm thickness special thick ship board.

Mechanical Properties

Steel grade	Yield point/MPa	Tensile point /MPa	Elongation/%	Temperature/° C	V-type impact test
					Akv/J
					≤50MM	50-70MM	70-100MM
Grade AH36	≥355	490-630	≥21	0	34/24	41/27	50/34
Grade DH36	≥355	490-630	≥21	-20	34/24	41/27	50/34
Grade EH36	≥355	490-630	≥21	-40	34/24	41/27	50/34
Grade FH36	≥355	490-630	≥21	-60	34/24	41/27	50/34

Warehouse Storage

Shandong Yingyi Steel Co., Ltd. is a leading high-end manufacturing supporting service enterprise in the field of metal processing in China. At present, Yingyi has established a number of processing service centers and manufacturing service bases across the country, with customers covering multiple industries. Shandong Yingyi Steel Co., Ltd. is a large-scale carbon steel and stainless steel production and sales company. It is the first-class agent of many domestic steel mills.

Packing and shipping

Shandong Yingyi Iron and Steel Co., Ltd. has set up branches in many places, with sufficient inventory, which is convenient for local customers. With the strategic goal of building an "internationally leading manufacturing supporting enterprise", Yingyi is committed to building an automated and intelligent advanced processing service center cluster and high-end manufacturing supporting service base, giving full play to the "one-stop" service of steel material resources and the top ten processing With the advantages of technology platform, it provides a "package" of supporting service solutions for advanced manufacturing industries, continuously expands and extends the industrial chain, and enhances the value of the industrial chain.

Application field

In the future, Yingyi will further develop customer needs from the perspective of globalization, and continue to further promote informatization, automation, intelligent manufacturing and network services under the guidance of technological innovation. Continue to improve the network layout of China's manufacturing industry, further subdivide industries, improve the technology and quality of parts and manufacturing facilities, and improve service capabilities.

Customer Chat

The company's warehousing center provides 24-hour service and can handle the cargo distribution business for customers. In the future, Yingyi will further develop customer needs from the perspective of globalization, and continue to further promote informatization, automation, intelligent manufacturing and network services under the guidance of technological innovation.

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