There are many grades of stainless steel and we buy them all. Stainless Steel is found in all areas including home and industry. The price of Stainless Steel scrap is based on the amount of Nickel content. Common grades are 301, 304, 305, 309, 310, 316, 317, 320, 330, 409, 410, 430, Inconel, and Monel.