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ABS Grade D 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.

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Shipbuilding Steel Plate

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Product Description

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

ABS for American Bureau of Shipping is also known as A131, which is used almost exclusively in shipbuilding. It has a minimum yield of 34ksi(235Mpa). It is used in barges, ship construction and marine equipment.

Grade A steel is the impact force subjected to normal temperature(20 ° C).
Grade B steel impact force at 0 ° C
Grade D steel impact force at -20 ° C
Grade E steel impact force at -40 ° 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 A	≤0.21	≤0.50	≥2.5C	≤0.035	≤0.035	-
Grade B	≤0.21	≤0.35	0.8-1.2	≤0.035	≤0.035	-
Grade D	≤0.21	≤0.35	0.6-1.2	≤0.035	≤0.035	≥0.015
Grade E	≤0.18	≤0.35	0.7-1.2	≤0.035	≤0.035	≥0.015

Processing for Different Grades
Grade A and B
The general strength of grade A and B shipbuilding steel plates can meet the requirements of process and mechanical properties through ordinary rolling, so the production process is relatively simple.

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	Thickness/mm	Yield point/MPa	Tensile point /MPa	Elongation/%	Temperature/° C	V-type impact test
						Akv/J
						Vertical	Horizontal
Grade A	≤50	≥235	400-490	≥22	-	-	-
Grade B	≤50	≥235	400-490	≥22	0	≥27	≥20
Grade D	≤50	≥235	400-490	≥22	-10	≥27	≥20
Grade E	≤50	≥235	400-490	≥22	-40	≥27	≥20

Packing and shipping

1. Samples may be provided by the seller and freight borne by the buyer.
2. We have full stock,and can deliver within short time. Many styles for your choices.
3. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you.
4. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
5. We have many years of experience in manufacturing and selling steel and we cherish every order from our honor.

HONOR

Factory

The company has many traditional advantages: complete variety, sufficient inventory, good quality, low price, short delivery time, good service, etc. It is the designated supplier of many large enterprises, and has provided renovation services for major national projects such as the Forbidden City, the Bird's Nest, and the Water Cube Stadium. Steel available.

Customer Visit

The company has specially built a professional international trade service team with a sales network all over the world. With many advantages, we cooperate with customers in North America, South America, Europe, Southeast Asia, the Middle East and Africa, and have spread to Peru, Philippines, Russia, Ukraine, Belarus, Uzbekistan, Pakistan, Indonesia, Malaysia, South Africa, Sri Lanka, Turkey, Vietnam, Laos , Brazil, Thailand, the Middle East, the United Arab Emirates, Morocco, Spain, the United States, New Zealand, Iran and more than 30 countries.

Applications

Our country is an international steel trade hub. We will connect China's steel resources with world trade demand through high-quality products in a fast, stable and low-cost way. Work with global partners to develop together and achieve win-win cooperation!

Shipbuilding Steel Plate