1020 D.O.M mild steel roll cage $150.00 per point
4130 Cro-Moly $225.00 per point.

Cro-Moly has a stronger memoryi in relation to mild steel; if bent it wants to flex back to the original position, so for that reason Cro-Moly is more difficult to bend (takes more pressure) When welding cro-moly with a er70s2 filler rod the material is no longer 4130 cro-moly unless a cro-moly rod is used and the entire structure is heat treated.