Re: [MW:25244] Pitting corrosion test failure

Hi Prasad,
Most of the tests fail also due to improper sample preparation or wrong dimensions during calculation of weight loss. Ask for a retest for 2 samples.

Regards
Harish.

On Aug 11, 2016 10:31, "Prasu Cutie" <pracuty@gmail.com> wrote:

Dear experts,

We had pittng corrosion failure in duplex stainless  steel 2205
Process: GTAW
Thk: 7.62mm
Filler: ER2209
Product: pipe
Heat input observed: 1.5 to 2.5kj
Gas: argon 99.9997purity
Weight loss reqd is <4g/sq.mtr, achieved 21g/sq.mtr
Testing is done as per ASTM G48

Can any one tell me why this failure occured, what could be the reason?

Regards
Prasad

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