Effect of galvanized steel pipe performance

(1) Carbon; The higher the carbon content, the higher the hardness of the steel, but the worse its plasticity and toughness.
(2) sulfur; It is harmful debris in steel, and steel with high sulfur content is easy to be brittle when it is processed under pressure at high temperature, usually called hot brittleness.
(3) Phosphorus; Can make the plasticity and toughness of steel significantly decreased, especially at low temperatures more serious, this phenomenon is called cold brittleness. In high-quality steel, sulfur and phosphorus should be strictly controlled. However, on the other hand, the low carbon steel contains higher sulfur and phosphorus, which can make it easy to cut, and it is advantageous to improve the machinability of steel.
(4) Manganese; Can improve the strength of steel, can reduce and eliminate the adverse effects of sulfur, and can improve the hardenability of steel, high alloy steel with a high manganese content (high manganese steel) has good wear resistance and other physical properties.
(5) Silicon; It can improve the hardness of steel, but the 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, hot dip galvanized galvanized layer is thick, electric galvanized low cost, so there is galvanized steel pipe.