scope:

This International Standard applies to cold-reduced carbon steel sheet of commercial and drawing qualities. It is suitable for applications where surface is of prime importance.

Commercial quality sheet (CR1) is intended for general fabricating purposes where sheet is used in the flat or for bending, moderate forming, and welding operations. It is produced in thicknesses of 0,36 mm and thicker (commonly produced up to 4 mm) and in widths of 600 mm and over, in coils and cut lengths.

Drawing quality sheet (CR2, CR3, CR4, CR5) is intended for drawing or severe forming, including welding. It is produced in thicknesses of 0,36 mm and thicker (commonly produced up to 4 mm) and in widths of 600 mm and wider, in coils and cut lengths. Drawing quality sheet shall be furnished to all the requirements of this International Standard, or, by agreement when ordered, to fabricate an identified part, in which case the mechanical properties of Table 3 do not apply. Drawing qualities are identified as follows:

- CR2 - Drawing quality

- CR3 - Deep drawing quality

- CR4 - Deep drawing quality aluminum killed (non-ageing)

- CR5 - Extra deep drawing quality (stabilized interstitial free)

Cold-reduced sheet less than 600 mm wide may be slit from wide sheet and will be considered as sheet.