This is purely MICROBIOLOGICAL INDUCED CORROSION. RESAON IS HIGH CHLORIDE THIS PIN HOLE CREATE WELD HAZ AREA, DUE TO CHROMIUM CARBIDE PRECEPITATION
On Wednesday, February 11, 2015 at 6:22:55 AM UTC+3, sunilkumar kundothara wrote:
-- On Wednesday, February 11, 2015 at 6:22:55 AM UTC+3, sunilkumar kundothara wrote:
Dear experts,
3" size SS piping (sa 312 tp 304) is found as leaking in few places (near to weld joint, base pipe area etc..).the service is potable water.sub- contractor saying it might be due to high chloride content (830ppm) or defective material (leaks mostly found in 1 heat no.).which could be more relevant? If for material, what are the tests for confirmations? Kindly share your views.
Thanks in advance,
Kumar.
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