I am tooling up a new/old stick welder, and I have a pile of used welding cables with various connector styles and types. None of the cable is marked at all, so I'll have to ID its gage by exposing copper and measuring diameter. But even if I do that, I can't find a table which maps cable diameter to gage size. Anyone?
GWE
Mcmaster page 3263,
AWG Per Foot Per Foot Cable Overall No. of
10- 250- Overall No. of 10- 250- Size Standard Lengths, ft. OD Strands249 Up OD Strands
249 Up 6 10, 20, 25, 30, 50, 100, 250 0.332" 259 7940A21 $1.07 $0.95 0.370" 660 7818A18 $1.41 $1.20 4 10, 20, 25, 30, 50, 100, 250 0.380" 406 7940A22 1.59 1.31 0.420" 1045 7818A11 2.62 2.11 2 10, 20, 25, 30, 50, 100, 250 0.450" 648 7940A24 2.37 1.98 0.475" 1650 7818A12 3.49 2.86 1 10, 20, 25, 30, 50, 100, 250 0.520" 804 7940A25 3.10 2.43 0.525" 2090 7818A13 4.24 3.63 1/0 10, 20, 25, 30, 50, 100, 250 0.565" 1026 7940A26 3.80 3.05 0.610" 2640 7818A14 5.02 4.23 2/0 10, 20, 25, 30, 50, 100, 250 0.625" 1273 7940A27 4.68 3.50 0.635" 3300 7818A15 6.54 5.37 3/0 10, 20, 25, 30, 50, 100, 250 0.665" 1596 7940A28 5.93 4.52 0.700" 4180 7818A16 7.50 6.44 4/0 10, 20, 25, 30, 50, 100, 250 0.740" 2014 7940A29 7.45 5.85 0.800" 5225 7818A17 10.37 9.02 i
The page link is
Well, that's for sure *way* different than the McMaster Carr table. And that one was way different than the other tables people pointed out. Here they all are for your comparison:
Grant
RoyJ wrote:
Only one of the tables refers to the copper wire size INSIDE the cable. All of the others refer to 'nominal outside diameter' And the AWG table is not particularly accurate for highly stand , highly flexible cable. It will run around 10% to 15% larger in diameter to account for the air space in between the conductors.
For identificati> Well, that's for sure *way* different than the McMaster Carr table. And > that
"Grant Erwin" wrote
Is your intent to identify the cable, or to choose one that is right for the welder/amperage and the length of cables you want to run?
Steve
I would trust the McMaster table and would not take AWG sizes for solid or low strand count wires.
i
ID the cable, Steve. I need to do that in order to buy fittings. I have one piece which was believed to be 4/0 but if it's 3/0 it would need different fittings, for example.
GWE
Have something to add? Share your thoughts — no account required.
Ask the community — no account required