Physical and chemical properties of carbon steel H-beams:

Physical properties:

1. Density:

about 7.85 g/cm3, belongs to the high density metal material, which makes it have a larger mass under the same volume, so that it can provide stable support in the structure.

2. Melting point:

generally in the range of 1495 – 1539 degrees Celsius, which determines its use limit and processing conditions in high temperature environment.

3. Thermal expansion coefficient:

relatively large, the size change is more obvious when the temperature changes, in the design and application need to consider the influence of thermal expansion and contraction on the structure.

4. Magnetic:

Most carbon steel H beams have obvious magnetic properties, this property may be exploited in some specific electromagnetic applications.

5. Acoustic performance:

It has certain characteristics for the transmission of sound and needs to be considered in some situations where sound insulation or acoustic control is required.

Chemical properties:

1. Reaction with oxygen:

In the air, the surface will gradually form an oxide layer. If the environment is humid or rich in corrosive gases, the oxidation rate will be accelerated.

2. Reaction with acid:

It is easy to react violently with strong acids (such as hydrochloric acid, sulfuric acid) to produce hydrogen gas and corresponding salts.

3. Reaction with alkali:

Under certain conditions, it will chemically react with strong alkali, especially in high temperature and concentrated alkali solution.

4. Electrochemical corrosion:

In the electrolyte solution, due to the difference in electrode potential in different parts, electrochemical corrosion is prone to occur, resulting in damage to the material.