S690QL plate Price in France 2021

Our company has a large number of weather-resistant steel, container steel plate, boiler steel plate, ship steel plate, acid-resistant steel plate, wear-resistant plates, high-profile steel, and pipeline steel plates in stock. We will provide you with fast service at a preferential price.

S690QL plate and SM490B steel plate belongs to low alloy high strength steel, which is a kind of structural steel produced according to Japanese Standard JIS G3106. Its strength σb is 490MPa. S690QL plate, SM490B steel plate is mainly used in buildings, bridges, ships, rail vehicles, oil storage tanks, containers and other buildings requiring advanced weldability.

The quality inspection department is responsible for the inspection management of raw materials and finished products, and the quality inspection and acceptance of products and raw materials. Strictly abide by the company's management system, conscientiously exercise the management power given by the company, and put an end to all ultra vires; be responsible for the inspection of all kinds of raw materials entering the company, and put forward quality problems and handling opinions.

The deoxidation ability of Al is much stronger than that of Si and Mn when aluminum element (Al element) is added into steel as deoxidizer or alloying element. The main role of aluminum in S690QL plate etc. steel is to refine grain size and fix nitrogen in steel, so as to significantly improve the impact toughness of steel and reduce the tendency of cold brittleness and aging. Al element can also improve the corrosion resistance of steel, especially when used with molybdenum, copper, silicon, chromium and other elements. The wear resistance of chromium molybdenum steel and chromium steel can be increased by containing Al element.

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