Corrosion and repairs of ammonium carbamate decomposers
Journal Article
·
· Materials Performance
OSTI ID:231157
- Pequivan S.A., Maracaibo (Venezuela)
Corrosion-erosion problems occurred in the carbon steel base metal of the ammonium carbamate decomposers in an urea extraction process lined with type 316L (UNS S31603) urea grade stainless steel. The cladding was replaced by weld overlay using a semiautomatic gas metal arc welding process. The first layer was alloy 25%Cr-15%Ni-2%Mo (UNS W30923); the second layer was alloy 25%Cr-22%Ni-2%Mo (UNS W31020).
- OSTI ID:
- 231157
- Journal Information:
- Materials Performance, Vol. 35, Issue 5; Other Information: PBD: May 1996
- Country of Publication:
- United States
- Language:
- English
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