Yes and this can change a little if you use 100% Argon or 100% Co2 or argon Co2 mixes and then a little Helium mix changes thing again or the size of wire to thickness of steel, aluminum or grade of material to many variables or as Rambozo put it as a good start is baseline 1 amp per .001" on most material but aluminum alloys change alot on types of welders and now with welding advancements as Advanced Squarewave, Soft Squarewave,Sinewave and Triangle Wave with AC balance and in AC Frequency with Independent AC EP-EN or EN-EP then comes the type of Tungstens that change things again. Welding is so much fun. I learn new things weekly some times daily every day it changes like yesterday I welded 1/4 armor plate.