Requirements for installation of stainless steel piping

The installation method of stainless steel pipe is basically the same as plain carbon steel, and has the following process requirements in some process.

The stainless steel material can be carried by the non-metallic materials such as planks or rubber plates.

Pipe cutting should not be cut with ordinary grinding wheel, it should be made of stainless steel special grinding wheel or plasma cutting.

The inside of stainless steel tube and pipe fittings shall be protected by argon.

Arc starting and arc, arc starting to use collect their welding, arc extinguishing should fill arc crater. The arc must be made within the groove, forbid arc in the pipeline, pipe parent metal surface and striking. If the holes and cracks are found in the arc and arc, the defects should be cleaned in time.

Stainless steel pipes, pipe fittings and stainless steel pipes, pipe fittings and stainless steel pipes, pipe fittings connection, before backing welding butt joint welding tube and cavity should be filled with argon gas protection, to tungsten argon arc welding.

The arc of multiple multi-layer welding and the arc of arc should be staggered.

Continuous welding, stainless steel materials, the interlayer temperature less than 60 ℃.

The welding seam of the pipe connecting the welder shall be treated with acid and passivation after welding.

The water pressure test of the stainless steel pipe is required for water temperature and water quality, and the water temperature must not be less than 5 degrees Celsius. The chlorine ion content in water must not be greater than 25Pmm.

Source: China Steel Pipe Manufacturer – Yaang Pipe Industry Co., Limited (

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