I have the end of a (hidden) knife tang that is unhardened. Some sort of carbon steel of the "old truck leaf springs" variety. I need to flux up this tang end, preen it as well as I can and then heat it enough for the solder to take and lock it in place and cover it up. Then grind and polish it to a uniform thing.
It's a very small piece at the end of the tang, but obviously crucial to keep the whole thing together. As this is a huge differentially (edge only) hardened blade meant for chopping, the "springyness" of the unhardened steel is likely crucial for the integrity of the piece. This solder needs about 600 degrees celcius (1100ish farenheit) to start flowing. Although this is far from the red hot hardening range temperature for the steel, I'm still worrying about somehow making the steel brittle...
Am I worrying needlessly?
It's a very small piece at the end of the tang, but obviously crucial to keep the whole thing together. As this is a huge differentially (edge only) hardened blade meant for chopping, the "springyness" of the unhardened steel is likely crucial for the integrity of the piece. This solder needs about 600 degrees celcius (1100ish farenheit) to start flowing. Although this is far from the red hot hardening range temperature for the steel, I'm still worrying about somehow making the steel brittle...
Am I worrying needlessly?