Yesterday I drove around getting scrap steel:50 pounds of 3/8" x 4" x L" for 25 cents/ pound, that is painted red on the end.
100 pounds of annealed 4140 for 40 cents / pound, in various shapes and sizes with a purple paint on the end. The purple paint has a slight hue of pink, but it is still purple.
Are these color codes universal? or does it depend on where the steel came from?