Raw Material Control Stage

 

Select High - Quality Raw Ore:
At the initial stage of iron - making, it's essential to choose high - quality iron ore with low impurity content. For example, high - grade iron ore usually contains fewer harmful impurities such as sulfur and phosphorus. For the production of shipbuilding steel plates, ores with a high iron content (for example, an iron content of over 60%) and impurity content that meets strict standards should be selected as far as possible. This can reduce the introduction of impurities from the source.
At the same time, the raw ore should be carefully screened and pretreated. Through physical methods such as magnetic separation and gravity separation, the gangue and other impurity components in the ore can be removed, further reducing the possibility of impurities entering the molten iron.

 

Control the Quality of Alloy Additives:
When adding alloy elements (such as manganese, niobium, vanadium, etc.) to improve the performance of the steel plate, the purity of these alloy additives must be ensured. For example, the purity of manganese alloy should reach a relatively high level (for example, the manganese content is above 75%), and the content of impurities such as sulfur and phosphorus in it should be strictly controlled. Because new impurities may be introduced even during the alloy addition process, it's crucial to control the quality of additives.

 

 

 

 

 

 

 

 

 

 

 

 

 

Product name	GL-AH36 grade shipbuilding steel plate
Width	600-2500mm
Wall Thickness	0.5-100mm
Length	2m-6m or as per customers' requirement

 

Optimization of the Melting Process

 

Adopt Advanced Melting Equipment and Technology:
Utilize efficient converter or electric furnace melting technologies. For example, in a basic oxygen converter, the phosphorus in the molten iron can be effectively removed through precise oxygen - blowing control. This melting method enables phosphorus to react with calcium oxide (CaO) in the slag to form calcium phosphate (Ca₃(PO₄)₂) and enter the slag, thus reducing the phosphorus content in the molten iron.
Adopt special melting processes such as vacuum melting or electroslag remelting. Vacuum melting can effectively remove gaseous impurities (such as hydrogen and oxygen) in the molten iron in a low - pressure environment. These gaseous impurities may form pores and other defects in the steel plate, affecting its toughness. Electroslag remelting can further purify the molten steel. Through the slag - washing effect during the remelting process, the tiny inclusions in the molten steel can be removed, improving the purity of the molten steel.

 

 

 

 

 

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 GL-AH36 Shipbuilding Steel Plate, 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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