So important to have a basic idea of steel compounds, its no good taking the time and effort to fabricate something only for it to fail by being not fit for purpose because the right type of steel wasn't used, ie tensile strength, hardness, ductility, wear resistance ect. It brings it home to think of a 50kg or hundred weight sack of coal as compared to the minute amount of carbon required to change it from low carbon to high carbon steel. Anyway enough of me harping on, i just want to say brilliant and easy to understand video. Thank you so much.
Very very useful. Thank you sir. I have always wanted to learn about this. I am in steel business (family business) . But i inow nothing about steel content. I did not study mettallurgy at university. I feel regret all the time. Now your video give me light. Thank you for sharing it. May your business be always successful.
You can watch metallurgy related videos at nptel youtube channel. It has all University level subject courses for metallurgy and other engineering branches.
I have US drawing and the base material is : "material - 9531476; opt. material - 8493933". The SAE/AISI material grade codes are 4 digits. how do I decode these nombers?
First numbers the metal it's made of ... 4 is molybdenum.. the second number is impurities ( weld rods 6010/7010/7018,very clean to avoid viscosity) 1 I think is lead ... last 2 numbers are carbon compounds making it harder So 4140 is softer than 4160 but same steel
