Do you know the inspection standards for color-coated steel coils?

The inspection standards for color-coated steel coils can be viewed from the aspects of size, coating, surface inspection, and labeling requirements.

01 Coated Steel Coils Of Specifications

The width error is +-2mm, the incision is straight, the cut surface is neat, and the thickness tolerance is +-0.03mm.

02 Coated Steel Coils Of Coating

The type of coating meets the contract requirements, the color of the coating is uniform, there is no obvious color difference, and the thickness of the coating meets the contract requirements.

03 Surface inspection

The coil surface is flat, without obvious unevenness, warped surface, deformation, clean surface, no oil pollution, no surface bubbles,

shrinkage cavities, leakage of coating, and other defects that are harmful to use, and the defective part of the steel coil does not exceed 5% of the total length of each coil, with no obvious scratches Scratches, bumps, or scars.

04 Label Requirements

The paper strip or other material products on the package must have the product name, specification, manufacturer, etc.,

the packaging mark is eye-catching, and firm and the handwriting is clear.

The supplier’s name or supplier trademark, standard number, grade, specification, weight, etc. must be marked.

The packaging mark shall indicate the identification number that can track from the steel to the smelting,

and the quality certificate shall indicate the name of the buyer,

the contract number, the product name, the standard number, the specification, the grade, the identification number,

the weight and the number of pieces that can be traced from the steel to the smelting, production date, and delivery date,

and the mark must indicate the weight of the substrate coating, the type of finish, and the color.