NM500A is the wear-resistant steel grade of BBN STEEL Plant, with a thickness between 8mm and 150mm. NM500A wear-resistant steel is used in construction machinery, mining machinery, coal mining machinery, environmental protection machinery, metallurgical machinery and other manufacturing enterprises. It is mainly to provide protection in the occasions or parts that require wear resistance, so that the equipment life is longer, and the maintenance shutdown caused by maintenance is reduced, and the capital investment is correspondingly reduced.
Our company was founded in 2000, which initially committed to providing high-quality steel A709 Grade 50W steel material products for China's rapid infrastructure construction. With the advantages of steel resources and good reputation in the domestic market, combined with the huge demand for steel in the international market, we began to export A709 Grade 50W steel material steel to the international market, opening up the international steel market.
X-rays or γ-rays are projected on the surface of the steel plate, and rubber can be placed on the other side of the steel plate. Since the radiation propagates through the steel plate and is absorbed, the intensity is different due to the presence or absence of defects, so the film can record the shape and position of the defects. This A709 Grade 50W steel material method is sensitive to the detection of common steel plate defects such as slag inclusions, porosity and pores. The disadvantage is that it is difficult to find the specific depth of the defect and it is not easy to find cracks.
The effect of nitrogen (N) on the properties of A709 Grade 50W steel material 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 A709 Grade 50W steel material and so on steel should be reduced and limited as much as possible. Generally, nitrogen content should not be higher than 0.018%.
Relying on the background of high-quality steel resources and its own strong steel machining capabilities, BBN comany can not only supply various steel material products, such as steel coils, steel plates, A709 Grade 50W steel material sheet, steel pipes, and shaped steels, but also provide a variety of steel deep processing services like cutting, welding and grinding. Through continuous technological innovation and after-sales service optimization, the company has its own world on the domestic and international steel industry stage!
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