Hobart Welding Products 250 Weld Parameters, Voltage switch position, While welding

4-2. Weld Parameters

Selecting Wire, Gas and Control Settings

	What Material	Suggested	Suggested	Wire Sizes
			Shielding Gases
	are You Welding?	Wire Types		(Diameter)
			and Flow Rate
	Steel	Solid (or hard)	100% CO2, 20 cfh
				.023”(0.6 mm)
		ER70S−6		.030”(0.8 mm)
				.035”(0.9 mm)
				.045”(1.1 mm)
			75% Ar/25% CO2, 20cfh	.023”(0.6 mm)
			(Ar/CO2 produces less	.030”(0.8 mm)
			spatter − better overall	.035”(0.9 mm)
			appearance.	.045”(1.1 mm)
Steel − for outdoor,		Flux Cored	No shielding gas required
				.030”(0.8 mm)
windy applications or		E71T−GS
				.035”(0.9 mm)
when weld appearance
				.045”(1.1 mm)
	is not critical.
	Stainless steel	Stainless steel	Tri−Mix, 20 cfh
				.023”(0.6 mm)
		ER 308	(90% He/7.5% Ar/
				.030”(0.8 mm)
			2.5% CO2)	.035”(0.9 mm)
	Aluminum − with	Aluminum	100% Ar, 20 cfh
				.030”(0.8 mm)
	Optional Hobart	4043 AL
				.035”(0.9 mm)
	3545−20			.047”(1.2 mm)
	Spool Gun	Aluminum	100% Ar, 20 cfh	.030”(0.8 mm)
		5356 AL		.035”(0.9 mm)
				.047”(1.2 mm)

	3	4	5	CAUTION! Do not change
2				6 Voltage switch position
1				while welding.

VOLTAGE

40		50	60
				Wire Speed listed is a starting value only − Wire Speed
30			70
20			80	setting can be fine−tuned while welding. Wire Speed
10			90	also depends on other variables, such as stick out,
				travel speed, weld angle, cleaniness of metal, etc.
	WIRE SPEED

Input Line Voltage

Higher e.g. 240 Volts AC

230 Volts AC

Lower e.g. 218 Volts AC

Parameter

Chart Settings

Weld Will Be

Hotter

Lower Settings

Use Parameter

Chart Inside

Door

Weld Will Be

Colder

Raise Settings

OM-192 440 Page 22