"The temperature you should be looking for is the working range of
glass. This is the temperature range between the softening point and the
proper personal protective equipment is needed when working with glass
at these temperatures."
In actual practice for copper systems, most soldering is done at
temperatures from about 450 degrees F to 600 degrees F, while most
brazing is done at temperatures from 1,100 degrees F to 1,500 degrees F."
There is a little gap there, but in reality there may be some overlap
depending on how exactly the tool is used. It might pay to look for the
highest temp brazing media you can find that is proven to work with
steel and carbide.
I know nuthink. Seriously this was just using my search engine results
based on my first thoughts on the subject. I'm sure you already did the
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