carbon steel bolts in stainless steel ball valve
carbon steel bolts in stainless steel ball valve
(OP)
Hello every body
ASTM A-351 2 ball valve with bonnet bolted with carbon steel bolts is that normal, will the stainless steel body of the valve will affected or contaminated by corrosion
Regards,
Farid
ASTM A-351 2 ball valve with bonnet bolted with carbon steel bolts is that normal, will the stainless steel body of the valve will affected or contaminated by corrosion
Regards,
Farid





RE: carbon steel bolts in stainless steel ball valve
Conversely, if the valve is outside in an oceanside environment, I would expect accelerated galvanic corrosion of the bolts. Staining would certainly flow over the stainless body.
RE: carbon steel bolts in stainless steel ball valve
RE: carbon steel bolts in stainless steel ball valve
How do you ensure that any galvanic cell does not get established(between bolts and valve body)even in the indoor environment, especially when valves are meant to work in wet environments.
How can one avoid corrosion during any wetlay up or fluid stagnation?
Considering the price you pay for the valves, the cost of switching to S.S bolts would be very minimal.
Thanks
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario, Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299
RE: carbon steel bolts in stainless steel ball valve
RE: carbon steel bolts in stainless steel ball valve
As per the certificate delivered from the vendor, it is shows nuts are in stainless steel(A194 GR8), but unfortunately it is not the case.nuts are in carbon steel and rusrt starts to build-up
i think i will reject these valves
Regards,
Farid