What are the advantages and disadvantages of carbon steel?

Carbon steel is an iron-carbon alloy with a carbon content of 0.0218% to 2.11%. Generally, carbon steel also contains a small amount of silicon, manganese, sulfur, and phosphorus. The higher the carbon content of carbon steel, the greater the hardness and the higher the strength, but the lower the plasticity.

The advantages of carbon steel are reflected in the following aspects:

1. Low price and easy to smelt;

2. Good processing technology;

3. Good performance improvement (C%, heat treatment).

The disadvantages of carbon steel are reflected in the following aspects:

1. Poor hardenability;

2. Low strength level and low yield ratio;

3. Poor tempering stability and poor heat resistance;

4. Not resistant to low temperature, carbon steel becomes brittle below the ductile-brittle transition temperature;

5. Not resistant to corrosion, carbon steel cannot withstand the corrosion of the atmosphere, acid, alkali and salt;

6. Low magnetic permeability and low magnetic permeability of carbon steel;

7. Non-magnetic, carbon steel will inevitably be magnetized in a magnetic field.