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Alloy Steel Castings Should Pay Attention To The Cavity

  • April 12, 2019 10:47 PM EDT

     

    Alloy Steel Castings Should Pay Attention To The Cavity

     

    Alloy steel is a steel alloyed with various elements in a total amount of 1.0% to 50% by weight to improve its mechanical properties. Alloy Steel Castings are divided into two categories: low alloy steel and high alloy steel. Most commonly, the phrase "alloy steel" refers to low alloy steel.

    Steel casting
    Steel is more difficult to cast than cast iron. It has a higher melting point and a higher shrinkage, which needs to be considered during mold design. When the metal cools and contracts, the riser should be given more suction capacity. Attention should be paid to the thickness of the cavity, as thinner regions cool faster than thicker regions, which may create internal stress points that can cause cracking.

    The following are a series of improved properties of alloy steel castings (compared to carbon steel): strength, hardness, toughness, wear resistance, corrosion resistance, hardenability and hot hardness. In order to achieve some of these improved properties, the metal may require heat treatment.

    Most steels have good strength and ductility balance, which makes them very tough. This allows them to withstand significant stresses and strains without breaking. Steel can also be quite wear resistant. Adding an alloy increases impact resistance and wear resistance.