When there are brown rust spots (spots) on the surface of stainless steel pipes, people are surprised: they think that stainless steel is not rusty, and rust is not stainless steel. It may be a problem with the steel quality. In fact, this is a one-sided wrong view of the lack of understanding of stainless steel. Stainless steel will rust under certain conditions
Stainless steel has the ability to resist atmospheric oxidation, namely, rust resistance, and also has the ability to resist corrosion in the medium containing acid, alkali and salt, namely, corrosion resistance. However, its corrosion resistance varies with its chemical composition, additive state, service conditions and environmental media type. as
304 steel pipe has absolutely excellent corrosion resistance in dry and clean atmosphere, but when it is moved to the coastal area, it will soon rust in the sea fog containing a lot of salt, while 316 steel pipe performs well. Therefore, not any kind of stainless steel can resist corrosion and rust in any environment.
Stainless steel pipe has good mechanical properties, so it is used more and more in various industries. Do you know the six major factors that cause stainless steel pipes to rust? If you want to know, let’s take a look with the editor. Rust of stainless steel pipes may be caused by the following six reasons:
1. Responsibilities of steel mills Strip flaking and trachoma can cause rust. Unqualified raw materials can cause rust.
2. Responsibilities of the rolling mill The annealed steel strip turns black, and ammonia leakage from the perforated furnace lining will cause rust.
3. Duties of the pipeline factory The welding seam of the pipeline factory is rough, and the black line will rust.
4. Responsibilities of distributors The dealer does not pay attention to the maintenance of the pipeline during transportation. Contaminated and corroded chemical products in the pipeline are mixed or transported in rain, and the two water seeps into the packaging film, causing rust.
5. Responsibilities of the processor When the processing plant cuts stainless steel or iron in the process of producing products, iron filings will splash on the surface of the steel pipe, causing rust.
6. Environmental Responsibility Users can use corrosive chemicals to clean stainless steel in areas with high pollution (such as seashores, chemical plants, brick factories, electroplating pickling plants, water plants, sewage treatment plants, etc.). This may cause rust. Therefore, a reasonable approach is to require skilled technicians to deepen investigation and research, divide labor reasonably, and be responsible for their own problems.
HEBEI XINQI PIPELINE EQUIPMENT CO.,LTD
Post time: Sep-18-2021
