MickB Posted March 29, 2010 Share Posted March 29, 2010 Hi, My brother-in-law hopes to start helping me with welding chassis, sills etc over Easter, on my 1974 A, but although he has done them way in the past he is not sure of what gauge these are made from. Apparently it is best to weld the same gauge to gauge. He seems to remember it is maybe 18 gauge that was used on the A but is not sure. The metal used to be measured in gauge and there was 16, 18 & 20 gauge rather than mm as I suspect it is now. Does this make sense and can anyone offer advice? Many thanks Mick Quote Link to comment Share on other sites More sharing options...
stradacab Posted March 29, 2010 Share Posted March 29, 2010 I use 20 for most structural repairs, 22 is like tin foil and only good for panel repair for my money. The legs on Mantas are reinforced with additional plates at key areas anyway, make sure they don't need repair too. That's my take on the subject...anyone? Quote Link to comment Share on other sites More sharing options...
mantadoc Posted March 29, 2010 Share Posted March 29, 2010 Convenient conversion table from gauge / in / to mm Here Your easiest way of matching like for like it to buy a measuring device. A vernier caliper, even a cheap one will usually be accurate enough. Beware burs on edges if you cut out steel to measure. Of course you have to know if you are measuring original steel or something already replaced. Full sills are available for the A. Quote Link to comment Share on other sites More sharing options...
plumster Posted March 30, 2010 Share Posted March 30, 2010 Hi, you will find 18swg (1.2mm) a good all rounder. Quote Link to comment Share on other sites More sharing options...
lamchop77 Posted March 30, 2010 Share Posted March 30, 2010 Hi, you will find 18swg (1.2mm) a good all rounder. 18/20 gauge for the panel work, but 16 gauge (1.6mm) definately a minimum for the chassis. HTH Chris Quote Link to comment Share on other sites More sharing options...
MickB Posted March 31, 2010 Author Share Posted March 31, 2010 Hey guys, Thanks very much for all the info. Very grateful and hopefully can get welding soon. Mick Quote Link to comment Share on other sites More sharing options...
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