About Stainless Steel

Stainless Steel (Stainless Steel) according to the definition of GB/T20878-2007 is stainless, corrosion resistance as the main characteristics, and the chromium content of at least 10.5%, carbon content of maximum not more than 1.2% steel.

In general, the hardness of stainless steel is higher than that of aluminum alloy, the cost of stainless steel is higher than that of aluminum alloy.

Stainless steel is often divided into: martensitic steel, ferritic steel, austenitic steel, austenitic ferritic (two-phase) stainless steel and precipitation hardening stainless steel, etc. In addition, according to the composition can be divided into: chromium stainless steel, chromium nickel stainless steel and chromium manganese nitrogen stainless steel. There are special stainless steel for pressure vessels "GB24511_2009_ pressure equipment with Stainless Steel Plate and steel belt".

Most of the requirements are to maintain the original appearance of the building for a long time. In determining the type of stainless steel to be selected, the main consideration is the required aesthetic standards, the corrosion of the location of the atmosphere and the cleaning system to be used. However, other applications increasingly seek only structural integrity or impermeability. For example, the roofs and side walls of industrial buildings. In these applications, the owner's cost of construction may be more important than aesthetics, even if the surface is not very clean. 304 stainless steel works quite well in dry indoor environments.