Rust spots appear on stainless steel elbows, indicating that the elbow is not made of pure stainless steel, but is an electroplated stainless steel elbow. The rust spots can be polished with ultra-fine sandpaper and then sprayed with colorless varnish for rust prevention before use. If the rust spots are not treated, they will gradually expand, affecting the appearance and shortening the service life of the elbow.
When brown rust spots (spots) appear on the surface of stainless steel elbows, people are surprised: they think “Stainless steel does not rust, rust is not stainless steel, there may be problems with the steel quality”. This is a one-sided and wrong view of stainless steel due to a lack of understanding. Stainless steel will also rust under certain conditions.
When stainless steel rusts, the surface of the product can be cleaned with rust removal liquid to remove rust, and then passivation and rust prevention treatment can be performed to prevent the surface from oxidizing again.
Post time: Sep-02-2024