AWWA C200 steel pipe is widely used in the following fields/industries:
Hydraulic power station, drinking water
Water Supply Industry, Irrigation Pressure Pipeline, Sewage Treatment Pipeline


AWWA C200 standard includes 6 inches (150 mm) or larger butt welded, straight or spiral seam steel pipes for conveying and distributing water, including pipe manufacturing, welding operation requirements, allowable weight changes and sizes, end preparation, special manufacturing, inspection and testing procedures.


inspect
Buyers may inspect all work and materials provided in accordance with this Standard, but such inspections shall not exempt manufacturers from their responsibility to provide and perform work in accordance with this Standard.


QA
Manufacturers should maintain quality assurance plans to ensure that minimum standards are met. It should include a certified welding inspector (AWS QC1) to verify that welders and welding procedures are qualified, that procedures are being followed and testing is restricted, and that quality assurance functions are being implemented.


defect
There should be no unacceptable defects in the finished pipe. When the defect depth is greater than 12.5% of nominal wall thickness, the defect in seamless pipe or welded pipe base material will be considered unacceptable.
If the depth of the defect exceeds 1/3 of the nominal wall thickness of the pipeline, and if the length of the defect part whose depth exceeds 12.5% is greater than 25%, it is not allowed to repair the defect. The outside diameter of the pipe. Each repaired pipe shall be hydrostatic tested in accordance with the standard requirements.


Marketing
Sequence numbers or other identifications should be painted on each pipe segment and the prominent position of each particular part.