Currently most alloy manufacturers, petroleum refineries, and other businesses responsible for alloy grade verification use technology to quickly and easily separate various grades of stainless steel. The most common, portable, and easy-to-use tool for this purpose is a handheld XRF (x-ray fluorescence) analyzer. These instruments are highly accurate at determining the chemical composition of alloys, and thereby their grade. Moreover, they do so within a matter of 5 seconds or less for most stainless steel grades, without significant sample preparation, and safely. They pay for themselves in terms of reducing materials mix-ups and getting the best price for scrap identification, and they do not require any advanced training to operate. An operator can be trained to use one within a few hours. Please come to consult us, you will get a great help.