What are the advantages of cast steel?

Cast steel refers to steel that is used exclusively to make steel castings. Cast steel is a type of casting alloy, with iron and carbon as the main elements, and the carbon content is between 0-2%. When the strength requirements of the casting are high and cast iron cannot meet the requirements, cast steel should be used. However, the molten steel of cast steel is not as fluid as cast iron, so the thickness of the pouring structure should not be too small, and the shape should not be too complicated. For example, cast steel can be used to make cast steel valves. When the silicon content is controlled at the upper limit, the fluidity of molten steel can be improved.

Classification

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

By Chemical Composition

1. Casting Carbon Steel.

Cast carbon steel is cast steel with carbon as the main alloying element and containing 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 carbon content of the cast low carbon steel is less than 0.25%, the carbon content of the cast medium carbon steel is between 0.25% and 0.60%, and the carbon content of the cast high carbon steel is between 0.6% and 3.0%. The strength and hardness of cast carbon steel increase with the increase of carbon content.

2. Casting Alloy Steel.

Cast alloy steel can be divided into cast low alloy steel, cast medium alloy steel and cast high alloy steel. The total amount of alloying elements for cast low alloy steel is 5% or less, the total amount of alloying elements for cast medium alloy steel is 5% to 10%, and the total amount of alloying elements for casting high alloy steel is 10% or more.

According to Use Characteristics

1. Casting Tool Steel

Casting tool steel can be divided into casting tool steel and casting mold steel.

2. Cast Special Steel

Cast special steel can be divided into cast stainless steel, cast heat-resistant steel, cast wear-resistant steel, cast nickel-based alloy and many others.

3. Cast Steel for Engineering and Structure.

Engineering and structural cast steel can be divided into cast carbon structural steel and cast alloy structural steel.

Advantages of Cast Steel

1. Greater Design Flexibility

This design has the greatest freedom in choosing the shape and size of the casting, especially for complex shapes and hollow parts, and the steel casting can be manufactured by a unique process of the core casting. Cast steel is easy to form and change shape, and can quickly make finished products from drawings, which can provide fast response and shorten delivery time.

2. The Strongest Flexibility and Variability in Metallurgical Manufacturing

You can choose different chemical compositions and organizational structures to meet the needs of different projects. Different heat treatment processes can decide mechanical properties, and we can use this property in a wide range, and improve solderability and workability of parts.

3. Improving the Overall Structural Strength

Due to the high reliability of the project, coupled with weight reduction design and short delivery time, it can increase cast steel’s competitive advantage in terms of price and economy.

4. Wide Range of Weight Changes

Small steel castings may only be 10 grams, while large steel castings can reach several tons, dozens or even hundreds of tons.

Valves made of metal steel materials for casting are called cast steel valves, and they are widely used. If you are interested in cast steel valves, please find our websites.