Galvanized steel pipe painting processing

Effect of Galvanized Steel Pipe performance:
(1) Carbon; The higher the carbon content, the harder the steel, but the less plastic and ductile it is.

(2) sulfur; It is harmful debris in steel. When steel with high sulfur content is processed under pressure at high temperature, it is easy to crack, which is usually called hot brittleness.

(3) Phosphorus; Can make the plasticity and toughness of steel significantly decreased, especially at low temperature is more serious, this phenomenon is called cold brittleness. In high quality steel, sulfur and phosphorus should be strictly controlled. But from the other side, the low carbon steel contains higher sulfur and phosphorus, can make its cutting easy to break, to improve the machinability of steel is favorable.

(4) Manganese; Can improve the strength of steel, can weaken and eliminate the adverse effect of sulfur, and can improve the hardenability of steel, high manganese content of high alloy steel (high manganese steel) has good wear resistance and other physical properties.

(5) Silicon; It can improve the hardness of steel, but plasticity and toughness decline, electrical steel contains a certain amount of silicon, can improve the soft magnetic properties.

(6) tungsten; It can improve the red hardness and thermal strength of steel, and improve the wear resistance of steel.

(7) chromium; It can improve the hardenability and wear resistance of steel, and improve the corrosion resistance and oxidation resistance of steel.

(8) Zinc; In order to improve the corrosion resistance, the general Steel Pipe (black pipe) is galvanized. Galvanized Steel pipe is divided into hot dip galvanized and electric steel zinc two kinds, hot dip galvanized galvanized layer is thick, electric galvanized cost is low, so there is galvanized steel pipe.