Heavy Equipment Spindle

Q3 2025, WA USA sold High Tech Reman an R3000 weld lathe under a wire supply agreement. This involved them swapping from Lincoln 96-S to our Chromecore 420-S as a close chemistry cross. Going into the application, we knew they were having small cracking issues, likely attributed to hydrogen cracking due to their chrome plating and stripping process. We also thought it could have been process issues with an old, home-build, weld lathe. After selling our machine and supplying 420-S, the continued having issues, even after process optimization. We then switched them over to Chromecore 420L-S at the beginning of 2026 to lower the carbon level from .3% to .2%. Their re-works went from 25% to complete elimination by this simple wire change.

420L-S to lower the carbon from .3% to .2% to help with the already poor weldability of 4340 and martensite formation.