Our company specializes in the production of steel plates, steel coil, steel sections, welded pipes and seamless pipes products, sales of GB, ASME, ASTM, JIS, DIN, EN, API and other standards and specifications of steel LR grade A passage ship steel and deep-processed products, facing the domestic and foreign markets, welcome to call for inquiries. It is a modern high-tech professional enterprise integrating scientific research, production and sales.
How much a ton of alloy plates costs depends on the classification of alloy plates. Different alloy plates contain different elements, such as low-alloy steel (the total amount of alloy elements is less than 5%), medium alloy steel (the total amount of alloy elements is 5% - 10%), and high alloy steel (the total amount of alloy elements is more than 10%). If the alloy plates performance is different, the price will be different. The thickness of the alloy plates also affects the price. Besides, LR grade A passage ship steel, alloy plates price is related to the steel market. With the rise of steel raw materials, the purchase cost will be high and the overall price will be high.
LR grade A passage ship steel, low alloy high strength steel has good atmospheric corrosion resistance and is widely used in engineering structure construction. Most of the engineering structures are used in the atmosphere or marine environment. A small amount of Cu, Ni, Cr, P and other elements are added to the low alloy high strength steel, which effectively improves the corrosion resistance of the engineering structure in the atmosphere, sea water and soil. If 0.2% - 0.5% copper, 0.05% - 0.1% phosphorus and aluminum are added, the corrosion resistance of steel can be improved obviously, and the effect of adding copper and phosphorus at the same time is the best.
Normalizing is to heat the steel parts to 30~80℃above the critical temperature for a period of time. Then the parts are taken out of the furnace and cooled in air. Since the cooling rate of normalizing is faster than that of annealing, the strength and hardness of normalized LR grade A passage ship steel are higher than that of annealed LR grade A passage ship steel, but the elimination of internal stress is not as good as annealing. The normalizing operation of LR grade A passage ship steel is simple, the cost is low, the productivity is high, and it is widely used in actual production.
Our alloy steel plate and sheets are mainly used for weld fabrication of pressure vessels that require improved notch toughness for lower than ambient temperature service.Width: 1000mm to 4500mmThickness : 5mm to 150mmLength: 3000mm to 18000mmImpact tested 52° CLR grade A passage ship steel, Supply Condition: As Rolled, Normalized Rolling, Furnace Normalizing, Vacuum Degassing, Simulated Post-Weld Heat Treatment or as per customer requirement.
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