Cast steel advantage and disadvantage

Cast steel vs Carbon steel

　　Carbon steel and cast steel are two of the more common alloys used by steel casting company. Many clients or customers often asked us: What is the difference between cast iron vs cast steel? Which one is better? Actually,there is no one is better, but which one is more suitable to your applications.

What is cast iron and cast steel?

　　Cast iron usually refers to gray iron, ductile iron and malleable iron. It is iron casting with carbon content upper than 2%. Cast steel usually refers to normal carbon steel and alloy steel. Or called steel casting with carbon content lower than 2%.In all steel types of , there are various steel casting grades that determine specific properties of the steel. It can help determine their advantages or disadvantages in certain processes.

Cast Steel

　　Cast steel, then, is a type of carbon steel, often containing a carbon content anywhere from 0.1-0.5% carbon. This is a specific alloy that is frequently used, and is know for its impact resistance features. Carbon and cast steels are especially known for standing out when it comes to withstanding frequent or sudden impact, but not deforming, breaking, or bending.

　　Cast steel is known for its ability to withstand these types of high stresses and strain forces. In fact, this impact resistance is one of the major benefits of using cast steel compared to cast iron. The combination of strength and ductility in steel make it a staple in mechanical and structural applications. It is capable of bearing heavy loads. This is one of the major reasons why steel is the most commonly used metal in the world.

Carbon Steel

　　Carbon steel is also known for being resistant to corrosion, especially when protective measures are used through the course of regular maintenance. It is also resistant to wear and tear, helping increase shelf life and lead to a durable cast. Typically, the amount of carbon content in any carbon steel or cast steel will determine the hardness of the material, with grades ranging from low, standard, to high-carbon steels.

　　At our foundry, With over 22 years of experience among our team, we understand the advantages of different alloys and carbon contents. We can choose the right alloy for your cast in our steel casting foundry.

Physical properties differences

　　There is no much difference from the chemical content and raw materials for cast iron and cast steel. But on their physical properties,there are many differences.

Cast iron advantage and disadvantage

　　The grey cast iron has good casting properties,vibration damping, wear resistance, machinability and low notch sensitivity. But, its tensile strength and elongation are very low. So grey cast iron is suitable for producing some metal parts with low mechanical requirements.

　　Such as protective cover, cover, oil pan, frame, floor, hammer, frame, knife, bed, bearing seat,cover, pump, valve, pipe, flywheel, motor blocks etc.

　　Grey cast iron also has some high grades. So the grey iron castings with high grades can withstand greater load, and a certain degree of tightness and corrosion resistance. Such as medium pressure valve, cylinder, gear, flywheels, cylinder block, cylinder liner, piston, gear box, brake wheel, coupling Plate,etc.

　　The ductile iron and malleable iron have higher strength, better ductility, heat-resistance and toughness than grey iron. So it has a wider application, in some applications, ductile iron can replace carbon steel. But, its production technology is high, the production process is more complex. So ductile iron castings have more casting defects, and its production cost is higher than grey cast iron. Considering its advantages, there are many fields that ductile iron can be choosed. Such as Pressure pipes and fittings, Automotive applications, Agriculture, road and construction applications, General engineering applications.

Cast steel advantage and disadvantage

　　The design flexibility is the most advantages of cast steel. The designer of the casting have the greatest freedom of design choices. Eespecially for the complex shape and hollow cross-section parts.　　

Cast steel has the metallurgy manufacturing flexibility and strongest variability. You can choose a different chemical composition and control, adapted to the various requirements of different projects. By different heat treatment choice in the larger context of the mechanical properties and performance, and good weldability and workability.　　

Steel castings can be used for a variety of working conditions. Its mechanical properties superior to any other casting alloys, and a variety of high-alloy steel for special purposes. To withstand high tensile stress or dynamic load of components, it is important pressure vessel castings in low or high temperature by the large and important part load key parts should give priority to steel castings.

The other difference item:

• 　　1-The main Different : Carbon Content (It was introduced above)

• 　　2-Materials Characteristic Difference