This method examines the relative resistance of the anti-corrosion layer to cracking and spalling when the pipe is deformed by observing the impact on the anti-corrosion layer during radial compression of the annular specimen of the anti-corrosion layer pipe. This method is only applicable to thin film anti-corrosion layers with an elongation not greater than 5%.
SY/T 0084-1994 history
2019SY/T 4113.5-2019 Test methods for performance of pipeline anti-corrosion coatings Part 5: Bending resistance test
2012SY/T 0084-2012 Standard test methods for ring bendabity of pipeline coatings
1994SY/T 0084-1994 Standard test method for ring bendability of pipeline coatings