Corrosion-resistant steel, commonly known as stainless steel, is a durable alloy designed to resist rust and degradation caused by moisture, chemicals, or extreme environments. It primarily contains iron, chromium (at least 10.5%), and often nickel or other elements like molybdenum, which form a passive oxide layer to protect against corrosion.

It mainly includes acid resistance and weather resistance families.It develops a big data chain on the basis of design-test-service process that drive the development and engine-ering application of high-quality corrosion-resistant steel by massive data.The sub-application industries include: environmental protection industry,tobacco industry, railway vehicles, containers, photovoltaic industry, green building, ocean engineering, bridge engineering, etc.