Introduction:
1. High-precision bright seamless steel pipes are made of high-quality carbon steel materials from Baosteel, which have undergone fine drawing, non-oxidation bright heat treatment (NBK state), non-destructive testing, high-pressure washing and pickling of the inner hole of the steel pipe, and the inner and outer walls of the steel pipe are protected by anti-rust oil Rust treatment and two-end seals are used as dust-proof treatment. The steel pipe produced has high precision and good smoothness. There is no oxide layer on the inner and outer walls of the steel pipe. The steel pipe can withstand the high pressure of liquid flow, and the steel pipe is not deformed by cold bending. Flatten without cracks. The mechanical properties can be bent at any angle without deformation. It is mainly used to prepare steel pipes in the oil circuit of hydraulic systems. It is also called hard piping in hydraulic systems. Precision steel pipes for automobiles can meet customers who require high precision, high smoothness, tensile strength and high mechanical properties.
2. DIN2391 high-precision black phosphating steel pipe is based on DIN2391 high-precision bright seamless steel pipe. The inner and outer walls of the bright precision steel pipe are phosphated with the phosphating agent dilution formula. The inner and outer walls of the steel pipe form a black protective film to prevent the steel pipe from rusting. protection. The black phosphating steel pipe is shiny in black, with good color and strong anti-rust ability. High-precision black phosphating steel pipes are also mainly used for piping in hydraulic systems, and it is more ideal to use ferrule (steel pipe) joints. 3. DIN2391 high-precision precision galvanized steel pipe adopts high-precision bright seamless steel pipe to be electro-galvanized, and the inner and outer walls of the steel pipe are plated with yellow zinc (color zinc), white zinc, and passivated. The length of the galvanized steel pipe is within 6 meters. can.
