DC01 CR coil is an EN 10139 cold rolled steel coil. DC01 CR coil, DC03 and DC04 grades are Cold rolled strip. DC01 CR cold rolled coils and strips can be produced in various conditions such as skin-rolled, quarter hard, half hard, full hard depending on how much cold work has been performed. This cold working (hardness) is often called temper, although this has nothing to do with heat treatment temper.
DC01 CR Coil Cold Rolled Coils and Strips cold rolling mills. A reversing mill is where the steel enters the rolling mill from one side, passes through the other side and then comes back through the mill again. Normally it will go left to right through the mill a number of times being rolled a little thinner each time it goes through.Prior to cold rolling, the mill scale has to be removed, normally by the Pickling Process which uses mechanical manipulation (around small diameter rolls) and acid to dissolve the surface scale. The surface is then washed to remove the acid and a light oil added to prevent rusting.
DC01 CR Coil Equivalents and Chemistry
Euronorm Germany UK USA
EN 10139 DIN 1624 BS 1449 ASTM %C %Mn %Si %S %P %Al
DC04 St4 CS1 SAE 1006 .03 - .06 .18 - .40 .02 max .02 max .02 max .02 - .06
DC04/DC03 St4/RRSt3 CS1/CS3 SAE 1006 .04 - .08 .40 max .03 max .02 max .02 max .02 - .06
DC01 St2 CS4 SAE 1010 .08 - .13 .30 - .40 .03 max .03 max .03 max .02 - .06
- - - SAE 1018 .14 - .17 .60 - .80 .15 - .25 .02 max .025 max .02 - .09