Hobart Welding Products 230 manual Typical MIG Process Control Settings, Wire Size Amperage Range

6-2. Typical MIG Process Control Settings

.These settings are guidelines only. Material and wire type, joint design, fitup, position, shielding gas, etc. affect settings. Test welds to be sure they comply to specifications.

Material thickness determines weld
parameters.
1/8 or 0.125 in	Convert Material
	Thickness to
	Amperage (A)
	(0.001 in = 1 ampere)
	0.125 in = 125 A

.035 in

Wire Size	Amperage Range
0.023 in		30 − 90 A
0.030 in	40 − 145 A
0.035 in	50 − 180 A

Select Wire Size

Wire		Recommendation		Wire Speed	Select Wire Speed
Size				(Approx.)	(Amperage)
0.023 in		3.5 in per ampere	3.5 x 125 A = 437 ipm		125 A based on 1/8 in
0.030 in		2 in per ampere	2 x 125 A = 250 ipm		material thickness
0.035 in		1.6 in per ampere	1.6 x 125 A = 200 ipm
					ipm = inches per minute
		Low voltage: wire stubs into work			Select Voltage
	High voltage: arc is unstable (spatter)
Set voltage midway between high/low voltage
Voltage		controls height and			Wire speed (amperage) controls weld
width of weld bead.					penetration (wire speed = burn-off rate)

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