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3 characteristics of stainless steel pipe

Views:0     Author:Site Editor     Publish Time: 2020-09-28      Origin:Site

Weldability

Different product uses have different requirements for welding performance. A class of tableware generally does not require welding performance, even including some pot companies. However, most products require good welding performance of raw materials, such as Class II tableware, thermos cups, steel pipes, water heaters, and drinking fountains.


Corrosion resistance

Most stainless steel products require good corrosion resistance. Stainless steel pipes are like Class I or II tableware, kitchen utensils, water heaters, water dispensers, etc. Some foreign merchants also conduct corrosion resistance tests on the products: use NACL aqueous solution to heat to boiling for a period of time Then pour out the solution, wash and dry, and weigh the weight loss to determine the degree of corrosion (note: when the product is polished, the abrasive cloth or sandpaper contains Fe components, which will cause rust spots on the surface during the test)


Polishing performance

At present, stainless steel products generally go through the polishing process during production, and only a few products such as water heaters and water dispenser tanks do not need polishing. Therefore, this requires good polishing performance of the raw material.


The main factors affecting polishing performance are as follows:

① Surface defects of raw materials. Such as scratches, pitting, pickling, etc.

②Material problem of stainless steel pipe material. If the hardness is too low, it is not easy to polish during polishing, and if the hardness is too low, orange peel will easily appear on the surface during deep drawing, which will affect the BQ performance. BQ with high hardness is relatively good.

③After deep-drawn products, small black spots and RIDGING will appear on the surface of the area with extremely large deformation, which will affect the BQ.


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