Why does the Stainless Steel on the Pipe Making Machine Rust?

March 05, 2024

Pipe making machine, as the name suggests is the production of pipe equipment, stainless steel materials mostly use this type of equipment, 

I believe that many people think that stainless steel is not rust, but in fact, if there is no good maintenance work, 

the best material is inevitable rust, then the next will introduce you, which reasons may lead to rust on the stainless steel material on the pipe making machine:

1, In the polluted air (containing a large number of sulfides, oxides, hydrogen oxide atmosphere), in the case of condensate, 

the formation of nitric acid, acetic acid liquid point, causing chemical corrosion.

2, The surface of stainless steel adhered to organic juice, in the case of water oxygen, 

forming organic acids, long-term formation of organic acids on the metal surface corrosion.

3, Stainless steel surface adhesion containing acid, alkali, salt substances (such as the decoration of the wall of alkali, lime water spray test) cause local corrosion.

4, Stainless steel pipe in the atmosphere, fresh water and other weak corrosion environment does not produce rust steel pipe, and the chromium content of steel must be ≥12%. 

If the chromium content is low or is not used in a weak corrosive environment such as the atmosphere (including although in a weak corrosive environment such as the atmosphere, 

but there are Cl- local rich collection concentration conditions), rust will be produced.

5, Stainless steel surface storage containing other metal elements of dust or exotic metal particles, in the humid air, 

the attachment and stainless steel condensate between the two into a microbattery, triggered an electrochemical reaction, the protective film is damaged, called electrochemical corrosion.

Stainless steel typically does not rust easily because it contains chromium, which forms a protective layer on the surface of the metal that prevents corrosion. 

However, if the stainless steel on a pipe making machine is rusting, it could be due to various factors:


Contamination from other metals, chemicals, or materials can damage the protective layer on stainless steel and make it susceptible to rust.

Improper cleaning: 

If the surface of the stainless steel is not cleaned properly or if harsh chemicals are used for cleaning, it can damage the protective layer and lead to rusting.

Exposure to corrosive environments: 

If the pipe making machine is operating in a highly corrosive environment with chemicals or high humidity levels, it can accelerate the corrosion of stainless steel.

Damage to the protective layer: 

Physical damage such as scratches or dents on the stainless steel surface can compromise the protective layer and expose the metal to corrosion.

To prevent rust on stainless steel, ensure proper cleaning, avoid contamination, protect the surface from damage, and consider the operating environment of the pipe making machine.

The above points may cause the stainless steel material on the pipe making machine to rust, we can according to the above mentioned, 

do a good check whether there are these problems, if there are, it must be dealt with, otherwise it will affect the production efficiency in the long run.

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