EDGES

COPPER BASE ALLOYS – Slit, Slit and Edge Rolled, Sheared, Sawed, Machined.

SHEET STEELS OR ALUMINUM SHEET – Mill Edge, Slit Edge or Sheared Edge.

STRIP STEELS and STAINLESS STRIP

No.1 Edge –

A smooth, uniform, round or square edge, either slit or filed or slit and edge rolled as specified, width tolerance +/-,QQ5”.

No.2 Edge –

A natural round mill edge carried through from the hot rolled band. Has not been slit, filed, or edge rolled. Tolerances not closer than hot-rolled strip limits.

No.3 Edge –

Square, produced by slitting only. Not filed. Width tolerance close.

No.4 Edge –

A round edge produced by edge rolling either from a natural mill edge or from slit edge strip. Not as perfect as No.1 edge. Width tolerances liberal.

No.5 Edge –

An approximately square edge produced by slitting and tiling or slitting and rolling to remove burr.

No.6 Edge –

A square edge produced by square edge rolling, generally from square edge hot-rolled occasionally from slit strip. Width tolerances and finish not as exacting as No.1 edge.