Weldability
Stainless steel sculpture
Different product uses have different requirements for welding performance. A type of tableware generally does not require welding performance, and even includes 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 water dispensers.
Corrosion resistance
Most stainless steel products require good corrosion resistance, such as Class I and 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 it to boiling, and then pour it after a period of time. Remove the solution, wash and dry, and weigh the weight loss to determine the degree of corrosion (Note: When the product is polished, the Fe content in the emery cloth or sandpaper will cause rust spots on the surface during the test)
Polishing performance
In today's society, stainless steel products generally go through the process of polishing during production, and only a few products such as water heaters and water dispenser inner tanks do not need to be polished. 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.
② The material quality problem. If the hardness is too low, it is not easy to polish during polishing (BQ performance is not good), 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.
③ After deep-drawn products, small black spots and RIDGING will appear on the surface of the area where the deformation is extremely large, which will affect the BQ performance.
Heat resistance