Cold Rolled Full Hard Unprocessed Sheet is produced by UNICOIL for direct use by customers for applications that do not require any formability beyond very limited bending and/or roll forming and also as a feed for Hot Dip Galvanizing process (Flux & Furnace type). The steel is highly work-hardened, and exhibits a high resistance to denting, etc. with Hardness of Rockwell B 85 minimum.
Since the product is supplied directly after cold rolling without further processing, Full Hard Cold Rolled Unprocessed Sheet will have residual cold mill oils on the sheet surface. The product is supplied, in coil form, with precise thickness tolerance, by removing off-gauge coil ends.
|Specification||JIS G 3141|
|Thickness (mm)||0.18 to 1.50|
|Width (mm)||Standard widths 1000, 1219, 1250|
|Thickness Tolerance||½ of JIS 3141|
|Width Tolerance||≤ 1200 mm +5 / -0 mm |
> 1200 mm +6 / – mm
|Surface Finish||Bright ,as rolled, residual cold mill oil|
|Hardness (HRB)||85 Min|
|Coil ID||508 mm|
|Coil weight (tons)*||3 to 15|
*Note: CRFH material can also be supplied with off gauge material at ID with the coil weight range of 12 to 25 Mt