This specification covers the requirements for low carbon continuous cast steel for exposed and unexposed applications and is applicable to all low carbon steel sheet products and coated substrates. Continuously hot or cold rolled flat products shall be supplied as coils or sheet. Hot rolled flat products are usually supplied in thicknesses 1.75 mm. These flat products are used for cold forming and for manufacturing of welded tubes. Cold rolled flat products with the appropriate surface type and surface finish are suitable for the application of surface coatings (metallic plating by melt dipping or thermal spray painting, electrolytic plating, organic coating and/or other coatings). This specification does not apply to steel for case hardening or strip applications. Additional requirements or agreements shall be specified by local business units (e.g., NAO, Opel ITDC, GM do Brazil, Holden Ltd., etc.).