How to Judge the Quality of Colored Steel Plate

1. Observing the thickness of substrate and film

The color steel plate is composed of a base plate and a color peritoneum or coating.

First of all, we have to consider the thickness of substrate and peritoneal coating. The better color plate substrate is 0.02-0.05 mm, and the thickness of coating or coating is usually less than 0.15 mm.

Because the thickness of the substrate is very important in terms of the service time of the color steel plate. And some manufacturers of color steel plate often make hands and feet on the base plate and the coating or coating of the color steel plate. They reduce the thickness of the base plate, but increase the thickness of the peritoneum to reduce the production cost of the color steel plate, which greatly reduces the service life of the color steel plate.

2. Observing the Leakage Edge of Colored Steel Plate

Get a piece of color steel plate, I first observe whether the exposed steel plate, such as cross-section, crystalline fine, gray, dark and impurities. If the section is fine crystalline, the quality is better.

3. Listen to the voice

If the material of the colored steel plate is poor, the sound of the colored steel plate is dull, the metal sound is not obvious, and the metal sound of the colored steel plate with better material is loud and crisp.

4. Check the quality certificate of color steel plate

Are there inspection standards of relevant departments? If possible, try to go to the color steel plate manufacturer on-the-spot inspection. Look at the business environment, whether formal. Ask about the reputation of the company in the market.

5. Look at the price

Everything is a penny for a penny. When we compare the quality of color steel plate, price is one aspect, but we should not pay too much attention to price. If the price of one color steel plate is much lower than that of the others, we should pay attention to it.