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Friday, May 29, 2009

ELECTRODE SIZE AND AMPS USED


The following will serve as a basic guide of the amp range that can be used for different size electrodes. Note that these ratings can be different between various electrode manufactures for the same size rod. Also the type coating on the electrode could effect the amperage range. When possible, check the manufactures info of the electrode you will be using for their recommended amperage settings.

Electrode Table

ELECTRODE DIAMETER (THICKNESS)

AMP RANGE

PLATE


1/16"

20 - 40

UP TO 3/16"

3/32"

40 - 125

UP TO 1/4"

1/8

75 - 185

OVER 1/8"

5/32"

105 - 250

OVER 1/4"

3/16"

140 - 305

OVER 3/8"

1/4"

210 - 430

OVER 3/8"

5/16"

275 - 450

OVER 1/2"

Note! The thicker the material to be welded, the higher the current needed and the larger the electrode needed.

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