The stainless carbon steel composite pipe is made of stainless steel and carbon structural steel. Stainless steel, with its excellent corrosion resistance, abrasion resistance, heat resistance, and its shiny, luxurious surface, and are widely used in various fields of the national economy. Lack of limited by the resources of our NI, relies heavily on imports of stainless steel demand, the price is more expensive, the popularization and application of stainless steel to a certain extent by with constraints. Carbon steel, especially the Q series carbon structural steel, with high bending strength, good impact resistance and anti-fatigue limit, as well as low prices, thus making it the basis of the national economic construction materials, carbon structural steel, its main elements Fe metal reactivity, oxidation in the atmosphere, it is easy to rust, let alone in a corrosive medium or special (wet, dark) environment. Year for its anti-corrosion investment as well as economic losses becaus...