304 seamless pipe | performance advantage

The quality and function of 304 seamless pipe are determined according to needs, and different needs have different element contents.

The higher the carbon content of carbon, the higher the rigidity, but the worse its plasticity and resistance. Sulfur is a harmful impurity in steel. Steel with high sulfur content is simply brittle when subjected to high temperature pressure processing, usually called hot brittleness.

Phosphorus can significantly reduce the plasticity and resistance of steel, especially at low temperatures. This phenomenon is called cold brittleness. In high-quality steel, sulfur and phosphorus must be strictly controlled. But from another perspective, low carbon steel contains high sulfur and phosphorus, which can make it easy to cut, which is beneficial to improve the machinability of steel.

Manganese can improve the strength of fertilizer pipes, weaken and eliminate the harmful effects of sulfur, and improve the hardenability of steel. High-alloy steel with high manganese content has outstanding wear resistance and other physical functions. Silicon can Improve the hardness of steel, but the plasticity and resistance will decrease. The steel used for electrical engineering contains a certain amount of silicon, which can improve the soft magnetic function.

The inner surface of 304 seamless pipe has rotary and linear polishing. The heat resistance function of 304 seamless pipe refers to the function of resistance to oxidation or gas medium corrosion at high temperature, that is, thermal stability, and at the same time, it has both satisfactory strength, that is, thermal strength at high temperature. The influence of carbonCarbon in austenitic stainless steel is an element that strongly constitutes and stabilizes austenite and extends the austenite region.

The ability of carbon to form austenite is about 30 times that of nickel. Carbon is an interstitial element. After solid solution strengthening, the strength of austenitic stainless steel can be significantly improved. Carbon can also improve the strength of austenitic stainless steel in high concentration chloride The function of resistance to stress corrosion. The corrosion inhibitor is adsorbed on the surface of the stainless steel pipe to form a continuous adsorption film, which isolates the corrosive medium and the 304 seamless pipe and prevents the corrosion of the 304 seamless pipe.