What Are The Advantages Of Stainless Steel Precision Casting Gray Iron

Gray iron, the raw material used in precision casting gray iron processing, refers to cast iron containing flake graphite, mainly including iron, carbon, silicon, manganese, sulfur, phosphorus, and its output accounts for more than 80% of the total output. Gray iron workpiece carbon content is relatively high, about 2.7%-4%, can be said to be carbon steel and flake graphite. According to the different matrix structure, gray iron can be divided into ferrite and flake graphite, ferrite and flake graphite three categories.

The mechanical properties of stainless steel precision casting gray cast iron workpiece are related to the matrix structure and graphite morphology. The flake graphite and gray cast iron matrix split seriously, the sharp Angle of graphite is easy to produce stress concentration, so that gray cast iron has tensile strength and plasticity.

The hardness and toughness of stainless steel precision casting are much lower than steel, and the compressive strength is equivalent to steel. It is also a cast iron casting with poor mechanical properties in ordinary cast iron castings. In addition, the matrix structure has a certain effect on the mechanical properties of gray cast iron, and the ash slag is different.

Stainless steel precision casting with coarse graphite sheet, low strength and hardness, less application of pearlite based gray iron, graphite sheet fine, high strength and hardness, mainly used for important castings of ferritic pearlite.