[Tig알곤용접]서스입문자_서스용접이란?

Have you tried welding a SUS (Stainless Steel) pipe by feeding the welding wire just like you did with carbon steel, only to end up with a burnt, warped pipe and total frustration? You might have blamed your lack of skill or the amperage settings, but the real answer lies in your lack of understanding of 'material properties.' SUS is a high-alloy steel containing chromium and nickel, making it completely different from carbon steel in terms of thermal conductivity, thermal expansion, and even the surface tension (viscosity) of the molten pool. Since the properties are entirely different, sticking to your old carbon steel habits will only ruin your weld. In this video ([SUS Beginner Course 1]), I will break down the 4 crucial differences between carbon steel and stainless steel with cold, hard facts. Before you use any technique, get the true 'essence' of the material into your head before picking up that welding torch! 📌 Video Timeline 00:00 Intro (Why welding stainless steel like carbon steel leads to failure) 01:11 1. Understanding Material Properties (The unique nature of SUS created by Chromium and Nickel) 02:15 2. Thermal Conductivity (Why heat stays localized and melts only specific areas) 03:37 3. Thermal Expansion (The root cause behind pipes warping and sagging during welding) 04:37 4. Molten Pool Surface Tension (How to catch the keyhole with sticky molten steel) 05:25 5. Oxidation Prevention & Purging (Why L-grade filler metal and back purging are mandatory) 07:36 Director's Final Advice (Understand the material before blaming your skills) 🛠️ Meister Pipe Welding Academy From field-ready practical welding to master technician certification courses, we teach the true essence of welding. If you found this video helpful, please Subscribe, Like, and turn on Notifications! Leave any questions in the comments below. #SUSWelding #PipeWelding #TIGWelding #StainlessSteelWelding #RootPassWelding #WeldingTheory