Characteristics and quality judgment standards of galvanized channel steel

Galvanized channel steel is a type of steel that has been hot-dip galvanized and has the following characteristics:

1. Good anti-corrosion performance. The surface of galvanized channel steel is coated with a zinc layer, which can effectively prevent contact between the steel and the external environment, thereby extending the service life of the steel.

2. Strong weather resistance, the zinc layer of galvanized channel steel has weather resistance and can maintain good corrosion resistance under different climatic conditions.

3. The appearance is smooth, and the galvanized channel steel has a smooth appearance after hot-dip galvanizing treatment, which is beautiful and generous.

4. Convenient construction, galvanized channel steel has good machinability and can be processed according to needs, such as cutting, welding, and cold bending.

The quality judgment mainly includes the following aspects:

1.The thickness of the zinc layer is one of the important indicators to measure its quality. Generally speaking, the thicker the zinc layer, the better its anti-corrosion performance.

2. Zinc layer adhesion: The zinc layer adhesion of galvanized channel steel refers to the degree of adhesion between the zinc layer and the surface of the steel. Excellent zinc layer adhesion can ensure that the zinc layer is not easily peeled off, further extending the service life of galvanized channel steel.

3. Appearance quality: The surface of galvanized channel steel should be flat, smooth, and free from obvious defects such as bubble

s, wrinkles, cracks, and pits. Able to visually inspect or use a magnifying glass to determine the appearance quality.

4. Uniformity of galvanized layer: The zinc layer of galvanized channel steel should be evenly distributed on the surface of the steel, without obvious local galvanizing or non galvanizing phenomenon.