Galvanised Bolts on 316L Piping System
Galvanised Bolts on 316L Piping System
(OP)
I have another unusual question. Is the use of galvanised cs bolts (A193)acceptable on SS (316L) piping system in view of zinc embrittlement during fire etc?
The second question, is cadmium plated flurorocarbon coated bolts better in terms of performance/durability in an offshore marine environment compared to galvnised bolts?
Thanks in advance.
The second question, is cadmium plated flurorocarbon coated bolts better in terms of performance/durability in an offshore marine environment compared to galvnised bolts?
Thanks in advance.





RE: Galvanised Bolts on 316L Piping System
RE: Galvanised Bolts on 316L Piping System
2nd answer: Industry is beginning to shy away from cadmium owing to HSE concerns. As to whether fluorocarbon is any good, it will depend on the skills of the fitters employed and the number of times the joints need to be made and broke.
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdo/
RE: Galvanised Bolts on 316L Piping System
As to what I would recommend - the answer depends on the system, the environment, and the piping system material. Often monel alloys are recommended for immersion or splash zones; and CRES for topside applications, but more specifics may be needed to verify these very general recommendations.
RE: Galvanised Bolts on 316L Piping System
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Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm