Pipe material
Thread Content
What material should be used for pipes to transport concentrated nitric acid? Can stainless steel be used, or should plastic pipes be employed?
316SS stainless steel will do, as well as 20 alloy, CD4MCu, etc. As for the plastic pipes mentioned by the original poster, it is best to use plastic-lined pipes. The material for lining is preferably polytetrafluoroethylene (PTFE). I recommend the use of lined pipes. Economy! However, when making the choice, the original poster still needs to consider the properties of the medium. Such as pressure, temperature, etc.! Specifically, choosing! This post was last edited by yy127328 on 2009-3-18 20:52.]
Plastic-lined pipes are not only useful and cost-effective, but they also offer good corrosion resistance
Carbon steel pipes can be used, as concentrated sulfuric acid does not corrode them very rapidly. I have been using carbon steel pipes to transport concentrated sulfuric acid for 3 years now, without any need to replace them. Remember, there must be no water or steam purging.
The answer given yesterday was incomplete; if the temperature of nitric acid is below 150 degrees, aluminum tubes can still be used. If it is above 150–200 degrees, the pressure is very low. One needs to think carefully under pressure.
It is recommended to use lined pipes. Safe, reliable, economical and practical.
If it is concentrated nitric acid, aluminum tubes can be used, as well as carbon steel tubes.
Our company specializes in the production of fluoroplastic equipment and pipes. Contact QQ59372170. This post was last edited by dyboy0178 on 2009-3-20 at 20:39.]