1. Excellent corrosion resistance

The core advantage of stainless steel pipes lies in their excellent corrosion resistance, especially suitable for harsh environments:

Composition protection: When the chromium content is ≥10.5%, a dense chromium oxide film is formed on the surface to resist acid, alkali, seawater, and chloride ion corrosion. For example, the service life of 316L stainless steel pipes in marine environments can reach more than 50 years, which is 5-8 times that of galvanized steel pipes.

Application scenarios:

Chemical industry: transporting strong corrosive media such as concentrated sulfuric acid and nitric acid, replacing traditional plastic-lined steel pipes, and reducing maintenance costs by 70%.

Municipal engineering: underground sewage pipes resist hydrogen sulfide corrosion and avoid the risk of cracking of concrete pipes.

2. High-strength and lightweight design

Through cold rolling, cold drawing and other processes, stainless steel pipes have both high strength and lightweight characteristics:

Mechanical properties:

Duplex stainless steel (such as 2205) has a tensile strength of more than 620MPa, which is twice as high as ordinary carbon steel pipes, and the wall thickness can be reduced by 30% and the weight can be reduced by 40%.

The pressure resistance is above 30MPa, which is suitable for high-pressure hydrogen storage and transportation (such as hydrogen station pipelines).

Typical cases:

Aerospace: Ultra-thin-wall stainless steel pipes (thickness 0.1mm) are used in hydraulic systems, which is 15% lighter than aluminum alloys.

New energy vehicles: Battery cooling pipes use laser-welded stainless steel pipes, which improve shock resistance by 50%.

3. Health, safety and cleanliness

Stainless steel pipes are irreplaceable in food, medicine and other fields:

Sterile surface:

The inner wall is electrolytically polished (Ra≤0.4μm) to avoid microbial attachment and meet FDA and GMP certification standards.

Lead-free and plasticizer-free precipitation ensures drinking water safety (in accordance with GB/T 19228 standards).

Industry applications:

Pharmaceutical companies: 316L stainless steel is used for injection water pipes to eliminate the risk of pyrogen contamination.

Food processing: CIP (cleaning in place) system pipes are resistant to high-temperature alkali erosion and have a service life of 20 years.