What are the requirements for welding thick marine grade GL-E36 hull steel plate

What are the requirements for welding thick marine grade GL-E36 hull steel plate

Since its establishment, the company has always adhered to the enterprise spirit of "solid feet and lofty ideals, dare to create and take responsibility, and dedicate to work". After years of careful management, the company has achieved the double improvement of marine grade GL-E36 hull steel plate capital strength and scale expansion, gained wide recognition and general praise from all walks of life, further realized specialized and large-scale operation and optimized allocation of resources, and effectively improved the marine grade GL-E36 hull steel plate overall strength, competitiveness and anti risk ability of the company.

For marine grade GL-E36 hull steel plate, automobile steel sheet materials, it must have excellent pressure-bearing performance. Automobile steel sheets of substandard quality are prone to fracture problems, which also cause waste and consumption of production materials, and directly increase the production cost of automobiles. Generally, the qualified automobile steel sheets used in automobile manufacturing are high-strength steel plates. The high-quality automobile steel sheets are more durable and improve the quality of the entire automobile.

It has good toughness. By strictly controlling the chemical composition, reducing the content of marine grade GL-E36 hull steel plate harmful elements and selecting reasonable heat treatment conditions, NM360 steel plate has good toughness. Therefore, the highly reliable structural parts can be constructed according to the brittle failure of wear-resistant components. Uniform and beautiful quality, marine grade GL-E36 hull steel plate using advanced technology and equipment, combined with high and scientific technical management, the material and shape of the product are even and consistent.

The microstructure of the quenched and tempered alloy steel, marine grade GL-E36 hull steel plate after conventional heat treatment is tempered sorbite. For parts with wear-resistant surface (such as gears and spindles), induction heating surface quenching and low-temperature tempering are carried out, and the surface structure is tempered martensite. The surface hardness can reach 55HRC-58HRC. After quenching and tempering, the yield strength of quenched and tempered alloy steel is about 800MPa, the impact toughness is 800kJ / m2, and the core hardness is 22HRC - 25HRC. If the cross-section size is large but not quenched, the properties will be significantly reduced.

Chemical composition differences between the marine grade GL-E36 hull steel plate, Q345 steel grades (Q345A / Q345B / Q345C / Q345D / Q345E):Q345A steel:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.035,S≤0.035; Q345B steel:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.035,S≤0.035; Q345C steel:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.030,S≤0.030,Al≥0.015; Q345D steel:C≤0.18,Mn ≤1.70,Si≤0.50,P≤0.030,S≤0.025,Al≥0.015; Q345E steel:C≤0.18,Mn ≤1.70,Si≤0.50,P≤0.025,S≤0.020,Al≥0.015; All the Q345 steel grades contain Nb≤0.07,V≤0.15,Ti≤0.20,Cr≤0.30,Ni≤0.012,Mo≤0.10。

S355J2 hot rolled steel plate executive standard: EN10025-2S355J2 hot rolled steel plate delivery status: control binding, normalizing rolling, normalizingThe European standard S355J2 hot rolled steel plate is available from marine grade GL-E36 hull steel plate stock and can be cut and processed according to the requirements of customers; the futures can be produced according to your requirements, and our S355J2 hot rolled steel plate price is preferential and the delivery time is fast, welcome to contact and purchase.

It is very important for a company to have a sound after-sales service system, which better guarantees the interests of customers and increases the reliability of the company's products in the hearts of customers. Our company has a dedicated after-sales service team and good after-sales service reputation, and has been recognized by customers over the past decades. Whenever there is problem about our marine grade GL-E36 hull steel plate steel materials during application on the user site, our after-sales service persons will assist to find solutions at the first time.

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