Brief introduction to the function of galvanized steel coil

1. Specification and size of galvanized coil

The standard galvanized sheet factory is marked with its standard length, thickness, width and allowable deviation value; if the customer has special requirements, the width, length and thickness of galvanized sheet can be customized according to the customer's requirements.

2. packaging design of galvanized coil

The galvanized rolling plate is generally packed with iron sheet, lined with moisture-proof paper and tied with iron waist. The binding shall be firm to prevent the internal galvanized plates from rubbing with each other.

3. Appearance of galvanized coil

Due to different treatment methods in the coating process, the surface state of galvanized coil is also different, such as ordinary flat zinc flower, non zinc flower and phosphatized surface.

4. Galvanized quantity of rolled steel plate

The amount of galvanizing is an effective method to express the thickness of zinc coating. The common unit of galvanizing quantity is g / m2. There are two common types of equal thickness galvanizing and differential thickness galvanizing. In short, the amount of galvanizing on both sides of the galvanized coil is different (the amount of galvanizing on both sides is the same or different).

5. Mechanical properties of galvanized coil

Tensile strength and bending strength are common properties of rolled steel plate. Tensile properties: Generally speaking, only structural, tensile and deep tensile galvanized sheets have tensile properties. Bending: it is the main item to measure the technological performance of sheet metal. However, the requirements of various galvanized sheets in national standards are not consistent.

6. Chemical composition of galvanized coil

Chengdu galvanized sheet has strict national standards for the chemical composition of galvanized base materials. However, the chemical composition of galvanized steel sheets produced in different countries will be different.

7. Galvanized coil shape

There are two indexes to measure the shape of rolled steel plate, namely straightness and sickle curvature. The flatness of steel plate and the allowable value standard of sickle bending have certain provisions.