Boiling plate

 Boiling plate

　　The boiling steel plate is a steel plate made of ordinary carbon structural steel boiling steel hot rolled

　　Boiling steel is a kind of steel with incomplete deoxidation. Only a certain amount of weak deoxidizer is used to deoxidize the molten steel. The oxygen content of the molten steel is relatively high. When the molten steel is injected into the ingot mold, a large amount of gas will be generated by the reaction of carbon and oxygen, causing the molten steel to boil. , The boiling steel got its name from this. Boiling steel has low carbon content, and since ferrosilicon is not used for deoxidation, the silicon content in steel is also low (Si<0.07%). The outer layer of boiling steel is crystallized under the condition of violent stirring of molten steel caused by boiling, so the surface layer is pure and dense, with good surface quality, good plasticity and stamping performance, no large concentrated shrinkage cavity, and cut head Less, the yield is high, and the production process of boiling steel is simple, the consumption of ferroalloy is less, and the cost of steel is low. Boiling steel plates are widely used in the manufacture of various stamping parts, architectural and engineering structures and some less important machine structural parts. However, there are many impurities in the core of the boiling steel, the segregation is serious, the structure is not dense, and the mechanical properties are not uniform. At the same time, due to the high gas content in the steel, the toughness is low, the sensitivity to cold brittleness and aging is large, and the welding performance is also poor. Therefore, the boiling steel plate is not suitable for manufacturing welded structures and other important structures that withstand impact loads and work under low temperature conditions.