Define destroy? The chrome will be burnt off if you try and unbraze them. Unbrazing is kinda tricky. Has to be hot enough for the braze to flow all the way around the joint but not too hot or the thin steel will be twisted and or crumpled from reefing on it . I'd practice on some junk frames then bars. Depending on far away it is from the heat the "cold" end might be too hot to grab with hands. It's easy to marr up the cold end with the pliers and or tong like grabber tool.