Plain carbon steel boiling plate as its name implies is made of ordinary carbon structural steel hot-rolled steel plate. Boiling steel is a kind of incomplete deoxidation of steel, high oxygen content in molten steel, when molten steel after the injection mould, carbon oxygen reaction to produce large amounts of gas, which is named after the boiling state of liquid steel.
Boiling steel with low carbon content, and because there is no silicon deoxidation, so the steel containing silicon content is often less than 0.07%. The outer layer of the boiling steel is crystallized in the boiling state, so the surface is pure and compact, the surface quality is good, and the processing performance is good.
There is no large concentrated hole in the boiling steel, and the cost is low. The heart of steel boiling impurities, more serious segregation, non-uniform mechanical properties, more gas content in steel, low toughness, cold brittleness and aging sensitivity of large, poor welding performance, so it is not suitable for manufacturing under impact load, welding and other important components in low temperature.
Boiling plates are widely used in the manufacture of various stamping parts, construction and engineering structures, and some of the less important machine structures and parts. The grade, chemical composition and mechanical properties of the material are in accordance with the requirements of GB700-79 (88) (ordinary carbon structural steel). Hot rolled medium thick steel plate thickness of 4.5-200mm.
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