LR Marine Steel Plate Grade E

LR Marine Steel Plate Grade E is a type of shipbuilding steel plate certified by Lloyd's Register.

 

Characteristics:

 

Chemical composition: It has specific proportions of elements such as carbon, silicon, manganese, phosphorus, sulfur, and may also contain trace amounts of alloying elements. The controlled chemical composition is designed to provide the steel with certain mechanical properties and corrosion resistance.

Mechanical properties: It typically has a certain level of yield strength, tensile strength, and elongation. The yield strength determines the stress at which the steel begins to deform plastically. The tensile strength indicates the maximum stress the steel can withstand before breaking. The elongation shows the ability of the steel to deform without fracturing.

Corrosion resistance: Due to its composition and manufacturing process, it has a certain degree of resistance to corrosion in the marine environment. This is important for ensuring the longevity and structural integrity of ships and marine structures.

 

ade	Yield strength MPA	Tensile strength MPA	Elongation %	Test temperature °C	V ballistic work
Thickness mm
≤50	>50~70	>70~100
L	T	L	T	L	T
A	≥235	400-520	≥22	20			34	24	41	27
B	≥235	400-520	≥22	0	27	20	34	24	41	27
D	≥235	400-520	≥22	-20	27	20	34	24	41	27
E	≥235	400-520	≥22	-40	27	20	34	24	41	27

 

 

LR Marine Steel Plate Grade E has a certain anti-corrosion effect, which is mainly reflected in the following aspects:
Chemical composition design:

 

 

Addition of alloying elements: It contains an appropriate amount of alloying elements such as manganese and silicon. Manganese element can improve the strength and toughness of steel, and at the same time enhance the corrosion resistance of steel to a certain extent. It can react with impurities such as oxygen and sulfur in steel to form relatively stable compounds and reduce the corrosion effect of these impurities on steel. Silicon element can enhance the oxidation resistance and acid resistance of steel. In the marine environment, it can resist the erosion of seawater and dissolved oxygen, carbon dioxide and other substances in seawater on steel.

Role of aluminum element: The aluminum content is not less than 0.015%. Aluminum can form a dense aluminum oxide film on the surface of steel. This oxide film has good stability and corrosion resistance and can prevent external oxygen, moisture and other corrosive substances from contacting the interior of steel and play a role in protecting steel.
Production process control:

Strict quality control: During the production process, through strict quality control and inspection, ensure that the chemical composition and organizational structure of the steel are uniform and stable. A uniform chemical composition can make the corrosion performance of each part of the steel remain consistent and avoid serious local corrosion; a stable organizational structure can improve the overall strength and corrosion resistance of the steel.

Surface treatment process: Usually, certain surface treatment such as rust removal and sandblasting is carried out to remove impurities and oxide scale on the steel surface and make the steel surface more smooth and flat. A smooth surface can reduce the adhesion and accumulation of corrosive substances on the steel surface and reduce the occurrence probability of corrosion.
However, the anti-corrosion effect of LR Marine Steel Plate Grade E is relative. In a harsh marine environment for a long time, other anti-corrosion measures such as painting, galvanizing, and cathodic protection still need to be taken to further improve the anti-corrosion performance of the steel.

LR refers to Lloyd's Register Group Limited, a UK charity dedicated to research and education in science and engineering. It is specifically maritime organization.

Specification we supply：

Thickness	3-200mm
Width	1500-4000mm
Length	5000-15000mm

 

 

 

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our LR Marine Steel Plate Grade E, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.
We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.
Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

 

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