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I'm beginning to restore a 1963 Caretta that had the seat hoop moved in the 60s and the frame promptly cracked around the welds. My welder/fabricator wants to know if there is any information on the frame material so we can repair it properly. We are guessing it's not mild steel, given the wall thickness and cracking around the weld, maybe CrMo?? The upside to the cracked frame is that the Kart was preserved as-was with the original Mac-8, and upholstery, both in reasonable condition.
ER70S-2 (GTAW) TIG
Description: Mild Steel Welding Alloy
A premium, multiple deoxidized, wire. Produces high quality welds in most grades of carbon steels. E70S-2 is a triple deoxidized wire which provides defect free weld deposits when properly used on most carbon steels. It is used especially for pipe welding. ER70S-2 Conforms to AWS A5.18 ER70S-2
Last edited on Sun Oct 18th, 2020 11:32 pm by Tom Smith
Tom:Thank you! I'm taking your info to my fabricator that keeps my Lotus in one piece ;-)... It will be my AZ summer project for 2021, only a few missing pieces, motor mount and clutch...
Thank you !Brett Engel
