Cladding vs Overlay for Sour Service
Cladding vs Overlay for Sour Service
(OP)
1)Do we need NACE compliance for carbon steel if cladded with 625 or 825 ?
2)and do we need NACE compliance for parent metal for weld overlay ?
3) I believe, we need compliance for weldoverlay and not cladding .. Why ?
Also for HDPE lining, why do we need NACE for base material ?
2)and do we need NACE compliance for parent metal for weld overlay ?
3) I believe, we need compliance for weldoverlay and not cladding .. Why ?
Also for HDPE lining, why do we need NACE for base material ?





RE: Cladding vs Overlay for Sour Service
2) This is question 1 reworded. Still a yes.
The reason is in case the cladding or lining integrity is compromised, you don't want your base metal cracking.
RE: Cladding vs Overlay for Sour Service
2) See 1
3) Compliance = compliance for the overlay, cladding or substrate? The question is not clear.
HDPE liners can permeate acid gases and water vapour, thus the corrosion process can occur at the metallic pipe surface
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Cladding vs Overlay for Sour Service
RE: Cladding vs Overlay for Sour Service
RE: Cladding vs Overlay for Sour Service
RE: Cladding vs Overlay for Sour Service
Thanks..
RE: Cladding vs Overlay for Sour Service
SSC is required. HIC is not required.
RE: Cladding vs Overlay for Sour Service