COLD ROLLED STRIP STEELS

COPPER BASE ALLOYS Acid Dipped – Dry rolled finished. Produced by dry cold rolling bi-chromate dipped alloy with polished rolls, resulting in a burnished appearance and retaining the color obtained by dipping (True Metal Color). Bright Dipped Finish – Finish resulting from an acid dip. Buffed or Polished Surface – A finish obtained by buffing, resulting in a high gloss or polished finish. Cold Rolled Finish – A relatively smooth finish obtained by cold rolling plain pickled strip with a lubricant. Dry Rolled Finish – A burnished finish resulting from dry cold rolling by use of polished rolls without any metal lubricant. Hot Rolled Finish – A dark relatively rough oxidized finish resulting from rolling the metal while hot. May subsequently be pickled or bright dipped but the rough surface remains. Stretched Brushed Finish (Satin Finish) – Obtained by mechanically brushing with wire brushes or by buffing.

FLAT WIRE No. 2 Finish – A regular bright finish. No. 3 Finish – Best Bright High Gloss Finish produced by use of polished rolls. Or by special buffing – this is a negotiated finish

STAINLESS COLD ROLLED SHEET and STRIP Nos. 1, 2B & 3B. No. 1 Finish – CR. Annealed and pickled appearance varies from dull gray matte finish to a fairly reflective surface. No. 2b Finish – Same as number 1 Finish followed by a final light cold rolled pass generally on highly polished rolls. No. 2D Finish – A dull cold rolled finish produced by cold rolling on dull rolls.

STAINLESS C.R. SHEET – Polished Finishes No.3 Finish – This is an intermediate polished finish. No.4 Finish – Ground and Polished. No.6 Finish – Ground, Polished and Tampico Brushed. No.7 Finish – Ground and High Luster Polished. No.8 Finish – Ground and Polished to Mirror Finish.

STAINLESS C.R. SHEET – Polished Finishes No.3 Finish – This is an intermediate polished finish. No.4 Finish – Ground and Polished. No.6 Finish – Ground, Polished and Tampico Brushed. No.7 Finish – Ground and High Luster Polished. No.8 Finish – Ground and Polished to Mirror Finish.

TEMPERED and UNTEMPERED COLD ROLLED CARBON SPRING STEET STRIP Classified by description as follows: (A) Black Oil Tempered. (B)Scaleless Tempered. (C) Bright Tempered. (D) Tempered and Polished. (E) Tempered, Polished and Colored (Blue or Straw).

TIN PLATE(A) Bright hot dipped finish. (B) Electro Matte Dull Finish. (C) Electro Bright Reflow Finish – produced by the in-the-line thermal treatment following electrodeposition