stainless steel

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stainless steel

Postby hejian » Wed Oct 18, 2017 12:14 am

1. Stainless steel water tank used in 304 and 201 stainless steel, the surface is usually matte. So we look through the naked eye, hand touch the way to identify. Naked eye to see 304 stainless steel has a good shiny shiny, hand touch is very smooth; 201 stainless steel color is dark without shiny, touch the rough feeling is not smooth. Another hand wet, respectively, touch two kinds of stainless steel plate, touch the 304 plate after the water stains fingerprints easier to erase, 201 is not easy to erase.Cheap 304L stainless steel coil2. With a polisher installed on the grinding wheel gently polished two boards, polished when the 201 plate of the spark is relatively long, thick, and more, on the contrary, the 304 plate of the spark is relatively short, Polished force must be light, and two kinds of grinding force consistent, easy to distinguish.jaway metal,stainless steel sheet3. Apply a stainless steel pickling cream to 2 stainless steel plates. 2 minutes later, look at the changes in the color of stainless steel smear. Color black for 201, white or do not change color for the 304440a stainless steel sheet sold in China

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