Cold Roll Stainless Steel 304 Coil Hairline Finish 

For 304 stainless steel, the Ni element in its composition is very important, directly determines the corrosion resistance of 304 stainless steel and its value. The most important elements in 304 are Ni and Cr, but they are not limited to these two elements. Specific requirements are specified by product standards. Industry common judgment situation that as long as the Ni content is greater than 8%, Cr content is greater than 18%, it can be considered 304 stainless steel. This is why the industry will call this type of stainless steel 18/8 stainless steel. In fact, the relevant product standards have very clear provisions for 304, and these product standards for different shapes of stainless steel and there are some differences. Below are some common product standards and tests. To determine whether a material is 304 stainless steel, must meet the requirements of each element in the product standard, as long as there is a does not meet, can not be called 304 stainless ste…