armor bp500 steel bulletproof hot rolled boiler steel plate

armor BP500 steel bulletproof, Large diameter spiral steel pipe refers to the relatively large diameter spiral steel pipe, which is generally required to be more than 1000mm. The manufacturing process of large-diameter spiral steel pipe: first, the steel strip is bent into shape, and then welded together to make a large-diameter spiral steel pipe of specified size. After being processed into a pipe, hydrostatic test, bending, flattening and other tests shall be carried out, and the internal steel support of large-diameter spiral steel pipe can be made according to customer requirements.

Our company was founded in 2000, which initially committed to providing high-quality steel armor BP500 steel bulletproof 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 armor BP500 steel bulletproof steel to the international market, opening up the international steel market.

Quenching is a common heat treatment process. It is the metal heat treatment process in which the armor BP500 steel bulletproof metal workpiece is heated to a proper temperature and kept for a period of time, then immersed in the quenching medium for rapid cooling. Quenching can improve the strength and hardness of steel in a large range, and adjust the coordination between armor BP500 steel bulletproof strength and hardness, plasticity and toughness. Quenching is generally used as the final heat treatment.

When phosphorus, copper, chromium, nickel and other trace elements are added to the steel, armor BP500 steel bulletproof, a dense and strong adhesive protective film will be formed on the steel surface, which will prevent the corrosion from spreading and developing inward, and protect the substrate under the rust layer, so as to slow down the corrosion rate. The amorphous spinel oxide layer of about 50 μ m ~ 100 μ m thickness formed between the rust layer and the substrate is compact and has good adhesion with the substrate metal.

After sales service support personnel pay attention to commitment in their work. In the process of people to people communication, mutual trust is an important factor for the long-term and stable communication. After sales service personnel must do what they say in the process of communication with customers.

Pre:Cairo BP600 bulletproof plate supplier top manufacturer

Next10mm thick high quality bp500 plate used for safety gate stock