[alfy65]

Something that has not been touched on is a comprehensive knowledge of metallurgy.This is a must for joining similar or dissimilar metals.Not to discourage , but you need to know how metals react to heat, joint preparation ,work hardening..etc etc..etc.Your safety will depend on it. Practice on various coupons and check for penetration ... get a good technique and enjoy...Get a copy of richard Finch " welders handbook" simple but helpfull.