What is the relationship between the mechanical properties of spheroidal graphite cast iron and its spheroidization rate?
The spheroidization level reflects only the final shape of graphite. The higher the spheroidization level of ductile iron is, the better its performance is, but this is not entirely the level of spheroidization to determine.The mechanical properties of nodular cast iron are closely related to its microstructure. Different grades of ductile iron require different mechanical properties such as tensile, yield, elongation, impact and hardness.
Grade high good, mechanical performance can reach or exceed the standard, the grade is not high, the performance can not be achieved
Poor balling and poor performance. Can do under tensile. General level three or four or more on it
