Standard for quality inspection of galvanized steel sheet

No matter what product it has his quality inspection standard, galvanized steel plate is no exception of course. Grade better galvanized steel plate in the inspection of the inspection of the main size, galvanized quantity, chemical composition, surface, packaging, shape, machine function and other aspects.

1. Size. Generally speaking, galvanized steel sheet will clearly list its thickness, length, width and other aspects of data indicators after production. Of course, this index is not fixed, it can be determined according to the needs of customers.

2. Packaging. Galvanized steel plate is generally divided into two categories, one is cut into the specified scale of galvanized plate, the other is the package galvanized steel plate rolled up. General iron sheet packaging is to place moisture-proof paper between the layers, and then tie with iron kidneys outside, so as to firm up, mainly in order to place friction damage between galvanized steel plates.

3, galvanized quantity. A widely used method for estimating the thickness of the galvanized layer of galvanized steel is to look at the amount of galvanization. Generally speaking, the standard of galvanized quantity is g/m2.

4. Surface. There will be different galvanized process on the steel plate, so there are no profiles, like flat galvanized, fine zinc flower, ordinary zinc flower and so on.

5, plate shape. There are two main goals in kanban black and white, namely sickle and straightness. The maximum allowable values of the two are also divided differently.

6. Chemical composition. Testing of the chemical composition of galvanized steel plate Some countries have a request for this some countries do not. Japan has none and the United States has none.

7. Machine function. Tensile test and bending test are required for this test. Among them, bending test is an important test item to balance the craft skills of thin plate. However, different countries have different requirements for different types of zinc plates in this respect.

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