What are The Basic Classifications of Steel Castings?

Update:17-02-2020
Summary:

Cast steel can be divided into cast alloy steel and cas […]

Cast steel can be divided into cast alloy steel and cast carbon steel according to its chemical composition, and can also be divided into cast tool steel, cast special steel, cast and cast alloy steel for engineering and structure, etc. according to its service characteristics.

1. According to chemical composition

(1) Casting carbon steel. Cast steel with carbon as the main alloying element and a small amount of other elements. Cast carbon steel can be divided into cast low carbon steel, cast medium carbon steel and cast high carbon steel. The strength and hardness of cast carbon steel increase with the increase of carbon content.

Cast carbon steel has the following advantages: lower production cost, higher strength, better toughness and stronger plasticity.

(2) Casting alloy steel. Cast alloy steel can be divided into cast low alloy steel (total alloy elements less than or equal to 5%), cast alloy steel (total alloy elements between 5% and 10%) and cast high alloy steel (total alloy elements greater than or equal to 10%).

2. According to the use characteristics

(1) Casting tool steel. Casting tool steel can be divided into casting tool steel and casting die steel.

(2) Casting special steel. Casting special steel can be divided into casting stainless steel, casting heat resistant steel, casting wear resistant steel, casting nickel base alloy, etc.

(3) Cast steel for engineering and structure. Cast steel for engineering and structure can be divided into cast carbon structural steel and cast alloy structural steel.

(4) Casting alloy steel. It can be divided into cast low alloy steel, cast medium alloy steel and cast high alloy steel.

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