Comprehensive analysis of 316L stainless steel tube

1、 Core Features

Low carbon corrosion resistance

316L stainless steel pipes have a carbon content of ≤ 0.03%, and can maintain corrosion resistance without annealing after welding, especially suitable for environments with strong acids, high temperatures, and sulfur-containing media.

Enhance mechanical performance

The tensile strength is ≥ 480 MPa, which is slightly lower than that of ordinary 316 stainless steel (≥ 520 MPa), but the addition of molybdenum significantly improves the resistance to pitting corrosion and high-temperature strength.

Processing adaptability

Supporting various processing techniques such as welding, cutting, and cold forming, the surface can be treated in different states such as wire drawing, polishing, or pickling.

2、 Specification parameters

Size range:

Outer diameter: minimum 12mm, maximum 1020mm;

Wall thickness: Conventional 0.8mm~3mm (in medical and construction fields), industrial thick walled pipes can reach 10mm~200mm.

Execution standards: ASTM A312 (universal pipe material), GB12771 (domestic standard), etc.

3、 Main application areas

Chemical energy: pre hydrogenation product cooling system heat exchanger tubes, reaction vessel liners (such as CNOOC continuous reforming unit).

Medical and Food: Aseptic gas pipeline, corrosion-resistant liquid delivery system (such as 316LBA capillary).

Architecture and Marine Engineering: Seawater transportation pipelines, structural components in high humidity environments (such as water supply systems for marine buildings).

Note: The selection should be based on parameters such as the corrosiveness of the medium and pressure level, with priority given to verifying the material's resistance to intergranular corrosion and welding performance.