Classification According to the production process: it can be divided into hot-rolled stainless steel coil and cold-rolled stainless steel coil. Hot-rolled steel coil is rolled after high temperature heating, with oxide scale on the surface and usually thicker; cold-rolled steel coil is further rolled at room temperature, with good surface quality, high precision, uniform thickness and thinner. According to the material: it can be divided into austenitic stainless steel coil (such as 304, 316, etc.), ferritic stainless steel coil (such as 430, etc.), martensitic stainless steel coil (such as 410, etc.) and duplex stainless steel
coil, etc.