GNEE STEEL is a family-owned steel supplier.cGNEE Global Enterprises is a dynamic company, committed to delivering high-quality products and services on a global scale. Our extensive international presence, diverse product range, and commitment to quality make us a reliable partner for businesses worldwide.
The development history of low alloy plate in various countries
According to international standards, the steel is distinguished into two categories: non-low alloy plate and alloy steel. Non-alloy steel is a large category usually called carbon steel, which contains, in addition to iron and carbon, small amounts of alloying elements brought in by the furnace charge, Mn, Si, Al, and impurity elements P, S, and the gases N, H, and O. Alloy steel is another category that is intentionally added in order to obtain certain physical, chemical or mechanical properties, and to control the impurities and harmful elements. Alloy steel is in order to obtain a certain physical, chemical or mechanical properties and intentionally added a certain amount of alloying elements Cr, Ni, Mo, V, and impurities and harmful elements to control another type of steel.
With the low alloy plate to "special", "fine", "high" development, to the deep processing direction, the extension of the field of special steel is getting narrower and narrower. U.S. Special Steel Association will be positioned in the special steel mold steel, stainless steel, electrical steel, high-temperature alloys and nickel alloys. Japan's structural steel and high-strength steel in the special steel category. With the technological transformation and process progress of China's general steel enterprises, special steel enterprises in the product field is also narrowing, in 1999, general steel mills have produced 34% of the total amount of special steel products.
In 1895 had used 0.40 ~ 0.56% C and 3.5% Ni low alloy plate construction of the Chile "Eagle" class destroyers, the steel processability than the initial chromium steel is much better, yield strength of 355Mpa. 20 century also used more than 8,000 tons of nickel-containing steel to build a bridge spanning 448m, but the shortcomings of this steel is that it is not as good as the initial chromium steel, the yield strength of the steel. The drawback is that the alloy resources of this steel is limited, and the cost is high. Since then, the development of 1.25% Si low alloy steel, the construction of trans-Atlantic ships and bridges spanning 110m, Kazakhstan's use of iron and copper mixed mineral resources, had developed a 0.7 ~ 1.1% Cu low alloy plate for shipbuilding, bridge building, this steel conductivity, corrosion resistance is excellent.
