Common defects in channel steel production

During the production process, channel steel may encounter various quality issues. Below are some common defects:

1.Dimensional Deviations:
Including length, width=100%, thickness, etc., not meeting specification requirements.

2.Surface Defects:

Blister (or scale):Thin, scar-like metal patches on the surface.

Scratches:Surface scoring or gouging.

Pitting and depressions:Uneven surface with small holes or indentations.

Lamination (or delamination):Separation between material layers.

Blistering:Round raised bumps appearing on the surface.

3.Shape Defects:

Twisting:The section is twisted into a spiral shape along its axis.http://www.hnftsteels.com

Bending (or camber/sweep):The section is not straight, either vertically or horizontally.

Underfill (or insufficient fill):The corners or edges of the section are not fully formed or filled out.