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Letter 37094
Material selection SS304 vs SS316
[Canada]
+++++
We are manufacturing packaging equipment and just sold a project
to China, we would like to select the best Stainless Steel and wonder
if we must used the SS316, we are trying to find a selection guide,
the only information we have tell us that the SS316 would not perform
better.
Humidity 95-98%
Tropical environment
Temperature can drop from 40 to 0 celcius during night
There is condensation on equipment and accumulation of corrosive dust
on it.
Products: 1 line-Salt NaCl, 2 line Amonium Chloride Nh4Cl, 3 line
light and heavy Soda Ash Na2COl
Patrick Couturier, Eng
Jr.
- Canada
First of two simultaneous responses -- +++++
Neither 304 not 316 stainless will stand up to a chloride
environment. Perhaps you should investigate duplex or super-duplex
stainless steels (2205 or 2507) for these service conditions.
Bill Reynolds
- Melbourne, Victoria, Australia
Second of two simultaneous responses -- +++++
T316 will perform better than T304 in chloride, however neither
may be entirely satisfactory. I'd suggest you look into duplex
satinless alloys for this application.
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Jeffrey Holmes,
CEF
- Spartanburg, SC, USA
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