Many ‘experts’ in the welding industry talk about high heat input as something that should always be avoided. Unfortunately, this is not good advice. High heat input can be detrimental in many cases, but other times we want to have higher heat input. Heat input is directly related to amperage and voltage and inversely related […]
We receive several calls about welding stainless and the beautiful rainbow colors, or lack thereof, on the weld and heat affected zone. Is the tinting an indication of quality? Are these colors acceptable? Do they show that the weld had enough heat to penetrate? Why do they need to be cleaned? The questions are endless. […]
Stainless steels are iron based alloys that contain a minimum of 10.5% chromium. This chromium reacts with the air and forms a very thin but very tenacious chromium oxide layer which is what prevents stainless from rusting. There are 5 types of stainless steels which are categorized depending on additional alloying elements. One thing they […]
