Goods high definition for Tool Steel to Thailand Manufacturer
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Goods high definition for Tool Steel to Thailand Manufacturer, The product will supply to all over the world, such as: , , ,
How to test stainless steel grade 304
A. Instruments for testing
1. Any stainless steel material for testing
2. High power 9v battery
3. Electrolyte for detection of molybdenum.
B. Procedure:
Take a stainstainless steel material put few drops of electrolyte on it. Now get high power battery of 9v deep (-ve) pin of battery in drops & another on dry area just drag it on stainless steel material till you found the colour change at (-ve) end of battery. If you found it RED or DARK BROWN then stainless steel grade is 304 (300 series) & if it is black then it is of grade 202. (200 Series)
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