12# mine steel arch

Mining i beam is also called mine beam, it is a typical profile in the current mining industry and the coal support field, this type of steel is named for its section.

Material: Q345B
Size: 12#

Characteristic: High pressure, long support time, easy to install, etc.

1. The outer edge of the i-steel shall not be more than 2.4% of the width of the legs.

2. The bending deflection of the i-steel shall not be greater than 1.0mm.

3. The degree of eccentricity of i-steel shall not be more than 2% of the width of the legs. Degree of eccentricity = b2-b1/2.

4. The bending degree of the steel shall not be greater than 3mm.