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What are the product characteristics of stainless steel seamless pipes?

Time:2025-06-05 16:07:24

Stainless steel seamless pipe is a long steel strip with a hollow cross-section and no seams around it. The thicker the wall thickness of the product, the more economical and practical it is. The thinner the wall thickness, the higher its processing cost will be. So do you know what are the product characteristics of stainless steel seamless pipe?


The product characteristics of stainless steel seamless pipe are as follows:

1. Chemical analysis: Chemical analysis of the chemical composition of the material, the chemical composition meets the standard requirements.

2. Air pressure and water pressure test: The pressure-resistant pipes are subjected to water pressure test one by one. The specified pressure value is not maintained for no less than 5 seconds and there is no leakage. The conventional supply water pressure test is 2.45MPa. The air pressure test is P=0.5MPaa.

3. Corrosion test: The industrial corrosion-resistant steel pipes supplied are tested for corrosion resistance according to the standard requirements or the corrosion method agreed by both parties, and there shall be no tendency of intergranular corrosion.

4. Process performance test: flattening test, tensile test, impact test, expansion test, hardness test, metallographic test, bending test, non-destructive testing.


The process of stainless steel seamless pipe determines its limited performance. Generally, seamless steel pipe has low precision: uneven wall thickness, low brightness of the inner and outer surfaces of the pipe, high cost of fixed length, and pitting and black spots on the inner and outer surfaces are not easy to remove; its detection and shaping must be processed offline. Therefore, it has demonstrated its superiority in high pressure, high strength, and mechanical structure materials.