There are different kinds of grade 201 flows in the current market.
Since there’s no consolidated standard for its chemical composition in the country, each steel mill have their standard for the stainless steel strip, for example, strip that contains 1% nickel, 0.5%nickel, 0%nickel and so on. Apart from the Nickel rate, there’s also difference of the copper rate, like strip that contains copper over 1%, 0.5%, 0% and so on. That makes we have material like high copper and half copper.
Even the same grade material has different price because of the material and content of chemical composition. This makes the steel market appear many kinds of sales price. What’s more, the price difference can over 1500RMB (240.2USD) per ton.
Therefore, the corrosive resistance and antiseptic property could be totally different if you use different material.