Cold-rolled flat steel for vitreous enamelling – EN 10209

Enamelling steels are designed with strict control over the chemical composition and microstructure, to ensure good resistance during the enamelling process and an optimal surface appearance. Enamelling, which involves applying a vitreous layer at temperatures between 780–880°C, bonds the steel and the enamel, combining the advantages of both materials.

Grades DC01EK, DC04EK, and DC06EK are suitable for conventional enamelling, while DC04ED and DC06ED are ideal for deep drawing. These steels are generally supplied with oil protection to prevent oxidation and can be produced using either static or vacuum annealing.

 

EN 10209 standard

Cold rolled low carbon steel flat
products for vitreous enamelling
Steels for traditional enamelling
DC01EK for profiling and bending
DC04EK for deep drawing
DC06EK for very deep drawing
Steels for direct enamelling
DC03ED for light drawing
DC04ED for deep drawing
DC06ED for very deep drawing

 

There are two main types:

  • Steels for traditional enamelling: featuring good inclusion cleanliness and chemical homogeneity, they minimise surface defects such as black spots or craters. These steels are ideal for conventional enamelling with one or two layers.
  • Steels for direct enamelling: having a carbon content below 0,004%, they are intended for direct enamelling, with a single enamel layer applied in one firing, or through pickling and nickel plating. They are decarburised and ensure a high surface quality.

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