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Color steel plate is widely used because of its light weight, high strength, rich colors, convenient and fast construction, earthquake resistance, fire protection, rain proof, long service life, maintenance free, etc. Jinan color steel plate manufacturer said the main inspection points of steel materials made of color steel plate:
1. The quantity and variety of steel shall be consistent with the order contract.
2. The quality assurance certificate of steel shall be consistent with the mark printed on the steel. Each batch of steel must have a material certificate provided by the manufacturer, stating the heat number, steel number, chemical composition and mechanical properties of the steel. The indexes of steel can be verified according to the national standard.
3. Check the specifications and dimensions of steel. The allowable deviation of various steel dimensions can be verified according to the provisions in the formulation of relevant standards.
4. Steel surface quality inspection. No matter flat steel, steel plate or section steel, the surface shall be free of defects such as scab, crack, fold and delamination. Those with the above defects shall be stacked separately for research and treatment. The corrosion depth of steel surface shall not exceed 1/2 of the negative deviation of its thickness.
5. After inspection, it is found that the data on the Steel Quality Guarantee is unclear and incomplete, the material identification is vague, and the surface quality and appearance dimension do not meet the requirements of relevant standards, which should be rechecked according to the specific situation. The steel products that pass the reexamination shall be officially put into storage, and the unqualified steel products shall be treated separately.
The above is about the steps and detailed operations of color steel plate inspection. For more information, please contact our website , relevant personnel will explain more detailed contents for you!