I think there's a high temp welding rod, was it 321 instead of 316? They were harder and did not soften as much with repeated use.
I plan to try it the next time I need to replace mandrels.
321 stainless steel is most similar to 304 stainless steel, however it contains the addition of Titanium making it an excellent choice for prolonged high temperature applications. The addition of Titanium stabilizes this grade of stainless steel against the formation of Chromium Carbide in heat ranges between 800 to 1500 degrees Fahrenheit.
Common Applications
* Aircraft exhaust stacks
* Manifolds
* Chemical processing equipment
* Welded equipment
* Jet engine parts
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Lynda
Cheetah, 5 lpm and 7lpm conc/generator (8-9 psi), natural gas (booster), started 11/06
"The time you enjoy wasting is not wasted time." -- Bertrand Russell
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