With equipment, technology, production technology, quality supervision and other leading advantages, we are leading in the production of all kinds of high-quality, high-tech medium, extra thick, extra wide steel plate A572 Gr 60 high strength steel shaped parts. The cutting surface is smooth and clean, the cutting edge is neat, without secondary processing by users, and it can be installed and used directly according to the technical dimensions, with the characteristics of high coincidence rate of positive and negative tolerance and excellent quality. The processed steel products are mainly used in heavy machinery and equipment.
In 2019, our company has decorated the office building for newlook. We also make the cultural wall with various photos. These photos are a combination of A572 Gr 60 high strength steel BBN Group various activities that record the company's beautiful memories in recent years. Among them are photos of the A572 Gr 60 high strength steel company's annual meeting, photos of group trips, pictures of factories, party pictures, photos of outdoors organized barbecues, photos of winter sports, pictures of table tennis matches. The BBN steel company has rich staff activities and pleasant staff life.
The effect of nitrogen (N) on the properties of A572 Gr 60 high strength steel and so on steel is similar to that of carbon and phosphorus. With the increase of nitrogen content, the strength of steel can be significantly improved, especially the plasticity, especially toughness, and the weldability will be decreased, and the cold brittleness will be intensified. At the same time, aging tendency, cold brittleness and hot brittleness will be increased, which will damage the weldability and cold bending property of steel. Therefore, the nitrogen content in A572 Gr 60 high strength steel and so on steel should be reduced and limited as much as possible. Generally, nitrogen content should not be higher than 0.018%.
With the increase of carbon content in the steel material, the yield point and tensile strength increase, but the plasticity and impact decrease. When the carbon content is more than 0.23%, the welding performance of the steel material becomes worse. Therefore, the carbon content of low alloy structural steel used for welding is generally less than 0.20%. The high carbon content can also reduce the atmospheric corrosion resistance of steel material, and the high carbon steel in the open air is easy to rust; in addition, carbon can increase the cold brittleness and aging sensitivity of A572 Gr 60 high strength steel etc. steel material.
