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After 10 years of operation a stainless steel pressure vessel have lost 9mm of thickness. Actual thickness was 7 mm below t-min and the pressure vessel was not allowed to operate.
Pressure vessel was not allowed to operate in future production and had to be either scrapped or partly replaced.
Uddcomb developed triple layer weld build-up weld overlay solution. The solution added 9mm of pressure retaining material and after extensive NDT measures the pressure vessel was operational again.
The current pressure vessel was saved and refurbished for many years of future production. No need for replacement. No need for investments in new production equipment.