Carbon Steel Casting Manufacturer in China

Carbon steel castings are cast products made from steel with a carbon content of 0.1% -0.5% as the base material, and formed through processes such as investment casting and sand casting. Has high strength, good toughness, and weldability, and can optimize performance through heat treatment (normalizing, quenching). Typical grades include ASTM A27 (low strength), A216 WCB (medium high temperature pressure parts), etc., widely used in valves, pump bodies, gears, and heavy machinery structural components. Adapting to high load and high temperature environments (such as energy equipment and ship components) while balancing cost and performance, the process requires precise control of carbon content and cooling rate to avoid cracks and defects, making it a key foundational material in the heavy industry field.

Get a Quote Carbon Steel Casting PDF

Processing Characteristics of Carbon Steel Castings

Carbon steel castings (with a carbon content of 0.1% -0.5%) have moderate to high machinability, combining cutting efficiency and cost advantages:

Machinability:

Low and medium carbon steel (such as ASTM 1020/1045) are easy to cut, while high carbon steel requires reduced cutting speed (recommended for hard alloy cutting tools) to avoid sticking and excessive wear.

Heat treatment effects:

Normalization or annealing can refine grain size and improve cutting surface smoothness; After quenching, the hardness is high (>50 HRC) and requires grinding or electrical discharge machining.

Weldability:

Low carbon steel has good weldability, but high carbon steel needs to be preheated and cooled slowly after welding to prevent cold cracking.

Cooling and lubrication:

Adequate coolant is required to reduce thermal deformation and extend tool life.

Surface treatment:

It is prone to oxidation and rust after processing, and often requires galvanizing, phosphating, or coating with a protective layer.

Defect control:

Internal porosity and slag inclusion in castings may cause tool breakage, and pre inspection and positioning are required.

Carbon steel castings are widely used in high-precision and load-bearing components such as valves and gears due to their high strength, toughness, and process flexibility.

The Application Advantages of Carbon Steel Parts in Precision Components

High strength and precision stability

Carbon steel (such as ASTM 1045) has uniform hardness and strong deformation resistance after heat treatment, and is suitable for components such as precision gears and bearing seats that require strict tolerance control.

Excellent processing performance

Easy to cut, mill, and grind, capable of processing complex surfaces such as mold inserts and hydraulic valve cores, with high surface smoothness.

Heat treatment adaptability

By quenching, carburizing and other processes, the surface hardness (up to 60 HRC) or core toughness can be improved to meet the dual requirements of wear resistance and impact resistance (such as precision cam and transmission shaft).

Welding and assembly compatibility

Can be repaired by laser welding or micro arc welding, suitable for precision instrument assembly (such as optical equipment brackets, sensor housings).

Cost effectiveness

Compared to stainless steel, the material and processing costs are lower, making it suitable for mass production of high-precision industrial robot joints and automation parts.

Summary:

Carbon steel is widely used for high load, high-precision functional components in precision machinery, automobiles, and electronic equipment due to its strength, process flexibility, and economy.

The Application Advantages of Carbon Steel Parts in Precision Components

Introduction to the Basics of Carbon Steel

Carbon steel is an iron-carbon alloy with varying carbon content, ranging from 0.0218% to 2.11%. In addition to carbon, small amounts of other elements such as silicon, manganese, sulfur, and phosphorus may be present in carbon steel.

Carbon steel based on carbon content:

Low carbon steel, contains between 0.05% and 0.25% carbon, offering good ductility and strength.
Medium carbon steel has a carbon content between 0.29% and 0.54% and is known for its wear resistance.
High carbon steel. with a carbon content between 0.55% and 0.95%, possesses high tensile strength and shape memory.

Get In Touch With Balasen

We will contact you as soon as possible.

Please upload files like drawings, material specifications, quantities, and shipping destination.