well congrats for producing alot of bull!! 1stley, 4130 is a high quality material that all top end bmx frames and some steel trials bikes are made of. its not pig iron you idiot. 2ndley, all metals go white at the neds if they snap, i snapped my old shite bmx frame, the places where it went were white. i snapped a stainless steel knife blade yesterday, the tip of the break was white.