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See Chinese contents: GB/T 37619-2019 GB/T 37619-2019: Corrosion of metals and alloys -- Potentiostatic test and evaluation method for determination of susceptibility to grooving corrosion of high frequency electric resistance welded steel pipes
This Standard specifies a method for evaluating the grooving corrosion of highfrequency electric resistance welded steel pipes by using the constant potential anodic polarization method in a 3.5% NaCl solution. This Standard is applicable to the test of grooving corrosion for carbon steel high frequency electric resistance welded pipes.
