This specification covers the requirements for continuous cast sheet steel with specified minimum yield strengths of (180...550) MPa applicable to uncoated and coated, cold or hot rolled low carbon, solid solution strengthened, bakehardenable, or high strength low alloy substrates with good formability. 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.