4140 & 4130 Alloy Tubing Industrial Tube and Steel sa1c 42 7 1 5 aluminized steel tube . 4140/42 and 4130 Mechanical Tubing are medium carbon alloy grades, which are widely used for many general-purpose applications that require high tensile strength and toughness.shs 150x150x8mm s355j0h square pipe s355j0h hollow shs 150x150x8mm s355j0h square pipe s355j0h hollow S355J0H 150X150X8MM SHS perfil cuadrado de acero para construcción con 6mtrs. $550.00-$650.00 / Tonelada. 1.0