Steel Products - Cold Rolled/Hot Rolled Coil, H Beams, Rebar & More

Carbon steel coil thickness is a critical specification that directly influences mechanical properties, formability, and application suitability. Thicknesses range from thin gauge (0.1mm) to heavy plate (200mm+), with precise control achieved through hot rolling or cold rolling processes. Hot rolled coils typically have thicker gauges (2mm to 200mm), with some surface scale but good ductility for general forming. Cold rolled coils offer thinner, more precise thicknesses (0.1mm to 6mm), improved surface finish, and higher strength from work hardening. Thickness tolerance is tightly controlled, with standards like ASTM A6 specifying allowable variations based on coil width and thickness. Thinner coils (0.5mm to 3mm) are ideal for lightweight applications such as automotive body panels, home appliance shells, or container fabrication, where formability and weight reduction are key.