In addition to iron, enamel steel mainly contains chemical elements including carbon, manganese, silicon, sulfur, phosphorus, and some alloying elements such as titanium or boron are added. The quality of the product has different effects. Today Nolifrit will tell you in detail.

1. Carbon (C): As the carbon content increases, the yield strength and hardness of the steel plate will increase, and the shrinkage and elongation of the section will decrease accordingly. The lower the carbon content of the steel, the more suitable it is for cold working. Carbon is a common element to improve the strength of steel plates. The carbon content of steel plates used for enamel should not be too high, because carbon will be oxidized into gas during firing. When the gas is discharged, it is easy to cause defects in the porcelain layer, resulting in pinholes, Problems such as bubbles in the porcelain layer, and the formability and welding performance of the steel plate will be deteriorated.

The most ideal use is zero carbon steel, decarburized steel, titanium steel and boron added steel. Generally, the carbon content in low carbon steel is less than 0.12%, the carbon content in zero carbon steel is less than 0.008%, and the carbon content in decarburized steel is low. at 0.001%.

2. Manganese (Mn): Manganese is one of the deoxidizing elements in the steelmaking process. Manganese can be combined with oxygen to form MnO2, forming a vacuum in the steel to absorb hydrogen and sulfur, avoiding poor porcelain layers, and enhancing the hardness and elasticity of the steel. , improve the yield strength and tensile strength of steel, but reduce the ductility, so it is not suitable for deep drawing. Therefore, manganese is one of the commonly used elements to improve the strength of steel. The higher the manganese content, the greater the strength of the required processing deformation.

3. Phosphorus (P): Phosphorus dissolved in ferrite will significantly reduce the plasticity of steel, which can reduce the deformation of steel during hot forging. When the phosphorus content is about 0.1%, the metal will become so brittle that it cannot be plastically processed, so in terms of deep drawing, the phosphorus content of 0.05% or less is the best.

In addition to carbon, manganese, phosphorus, sulfur, titanium, silicon and other elements also have a related impact on steel plate enamel. If you are interested in the above content, welcome to follow us, Xiaonuo will provide you with the latest enamel information and professional enamel knowledge!