The rust phenomenon of material 304 May have the following reasons:

1. Chlorine ions exist in the use environment.

Chlorine ions are found in salt, sweat, sea water, wind, and soil.

Stainless steel in the presence of chloride ions in the environment, corrosion quickly, even more than ordinary low-carbon steel.

So the use of stainless steel environment requirements, and often need to wipe, remove dust, keep clean and dry.

Stainless steels 316 and 317 (see below for properties of 317 stainless steels) are molybdenum containing stainless steels.

The molybdenum content of 317 stainless steel is slightly higher than that of 316 stainless steel. Due to the molybdenum content of steel, the overall performance of the steel is better than 310 and 304 stainless steel.

Stainless steel also has good properties of chloride erosion, so it is usually used in Marine environments.

Theoretical weight of stainless steel tubes: W=(outside diameter - wall thickness)x wall thickness x0.02491.