What is Carbon Steel Casting

Carbon steel castings (also called carbon steel investment casting) are mainly made of iron and carbon. Carbon steel is one of the main materials in the current cast steel industry. It has the advantages of low cost, high wear resistance, easy preparation, and can be heat treated to improve its strength, ductility, and processability.

All carbon steel parts are produced at Besser through an investment casting process. Investment casting, also known as a lost wax casting, is the most precise casting method in China. Carbon steel investment casting can manufacture carbon steel parts with a minimum thickness of 3mm. 

The process involves creating a wax pattern, which is essentially a replica of the desired carbon steel part. The patterns are encased in the ceramic material and then removed or "lost" by heating. Molten carbon steel is then poured into the opening of the mold. Once the mold is freed from the solid steel, the casting is ready to use.

Currently, Besser Foundry can produce carbon steel investment castings within 0.05kg-70kgs. With advanced production equipment and strict quality control procedures, all carbon steel castings produced by our foundry are qualified, and we promise not to provide substandard products to any customers.

Carbon Steel Grades

Low carbon steel (<0.20% C):

Because of its low strength, low hardness, and softness, it is also called soft steel.

Medium carbon steel (0.20 to 0.50% C):

It is the most widely used material in various uses at medium strength levels. In addition to being used as a building material, it is also widely used in the manufacture of various mechanical parts.

High carbon steel (> 0.50% C):

After being properly heat-treated or hardened by cold drawing, high carbon steel has the advantages of high strength, high hardness, high elasticity, and not easy to deform.

Advantages of Carbon Steel Castings

• Compared with other steels, carbon steel uses the largest amount and is easily obtained by casting.

• Carbon steel can obtain higher hardness and better wear resistance after heat treatment.

• The hardness in the annealed state is very moderate, and it also has good machinability.

• The raw materials of carbon steel are very common, easy to obtain, and the cost of production is relatively low.

Carbon Steel Casting Process

There are currently two processes for carbon steel castings: water glass investment casting or silica sol investment casting

Water glass casting: Water glass is added to the molding material (commonly referred to as silica sand) according to a certain ratio, and it is made into "water glass sand" by stirring, rolling and mixing, and it is blown into the mold and sand box with CO2 gas, CO2 and water. The glass undergoes chemical reaction to form silica gel to harden the water glass sand, and is completed through the processes of mold lifting, box closing, and pouring.

Silica sol investment casting: This is a lost wax casting method. The mold is first made according to the shape of the silica sol cast part; the wax mold is placed in a solution made of silica sol and quartz sand. There will be a layer of material on the wax mold and then it will solidify. After repeated soaking and curing, it is basically formed. Finally, it is dewaxed and cast.

Application of Carbon Steel Castings

Carbon steel castings are widely used in various industries due to their excellent mechanical properties, high tensile strength and wear resistance. Carbon steel castings are mainly used in mechanical parts, valves, pipe fittings, construction industry, mining, drilling, automobile industry, railway industry.

Secondary Processing Services We Provide

Heat treatment

It also helps improve mechanical properties. Therefore, especially those post-machined carbon steel castings require heat treatment. We can provide customers with heat treatment services.

Machining

Machining is a common post-processing of carbon steel after casting. This process is primarily used to achieve tighter tolerances and a better surface finish by removing excess material. We can provide our customers with finished machined carbon steel castings with shorter lead times and lower machining costs.

Surface treatment

Available surface treatments for carbon steel castings after casting include electrolytic polishing, mirror polishing, vibration polishing, powder coating, etc. When customers are not familiar with it, we can also recommend suitable surface treatment methods to customers.

Your Carbon Steel Castings Manufacturer and Supplier Worthy of Choice

As an excellent carbon steel manufacturer in China, we provide the most professional investment casting process solutions. Working with us can give you the following benefits:

• Through mature quality control systems, we can provide unparalleled quality and dimensional tolerances

• Efficient and professional casting process to save your costs.

• Strict quality control guarantees the quality of products delivered

• The professional technical team can produce high-quality parts according to your requirements.

• Improve the after-sales system and answer all your doubts.