Solfer® CA

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Description

Solfer® grades are obtained by decarburisation.

Surface decarburisation during continuous annealing process – Solfer® CA grade: this patented steel grade has been developed for the two-coat / one-fire enamelling process. Nevertheless, it can also be used for ground or conventional enamelling processes.

Solfer® CA grade is suitable for light to medium drawing and is compatible, after degreasing, with the two-coat / one-fire enamelling process using the wet/dry or dry/dry method. This grade can also be used for the ground enamelling process. It offers excellent resistance to "fish scale" defects. A minimum TH of 100 is guaranteed, in accordance with EN 10209:2013.

Surface appearance after enamelling is excellent: no pinholes or black spots. This is linked to the ultra-low carbon content of these grades (throughout for Solfer® and Solfer®+ grades and on the surface for Solfer® CA grade). Moreover, for Solfer® and Solfer®+ grades, deformation at high temperature (e.g. sagging, during pyrolytic cycles) is limited.

Related Standards

Los datos sobre este material han sido proporcionados por ArcelorMittal.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

Ashby charts

Propiedades

Medidas

PropertyValue

Dimensions

Please feel free to check the figure on the right side of the material page for more details.

Mecánica

PropertyValueComment

Elongación

32 %

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min. | for thickness 0.4-0.5 mm | Transverse | A80

34 %

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min. | for thickness 0.5-0.7 mm | Transverse | A80

36 %

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min. | for thickness 0.7-2 mm | Transverse | A80

Límite elástico

140 - 260 MPa

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for thickness 0.4-0.5 mm | Transverse

140 - 240 MPa

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for thickness 0.5-0.7 mm | Transverse

140 - 220 MPa

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for thickness 0.7-2 mm | Transverse

Resistencia a la tracción

270 - 390 MPa

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for thickness 0.4-2 mm | Transverse

Chemical properties

PropertyValueComment

Azufre

0.018 %

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max.

Carbono

0.025 - 0.045 %

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heat analysis

Fósforo

0.018 %

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max.

Manganeso

0.16 - 0.24 %

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Silicona

0.03 %

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max.

Technological properties

Property
Application areas

Solfer® grades are particularly suitable for the manufacture of casing panels for domestic appliances (hobs, covers, control panels, side panels etc) and for kitchen utensils (pots and pans). They can also be used for architectural applications, thanks to their excellent resistance to deformation during enamel firing.

Chemical composition

The manufacturing conditions guarantee very good resistance to "fish scale” defects (TH > 100 in accordance with EN 10209:2013).

Coating

Two-coat / one-fire enamelling process: Solfer® CA, Solfer® and Solfer®+ grades

Surface preparation:

  • Very meticulous degreasing before enamel application is essential

    Enamel application and firing:

  • Solfer® grades are compatible with all the common enamelling processes: wet spraying, electrostatic liquid or powder deposition.
  • It is essential that the following requirements are met:
    • Use of ground-coat enamel containing a high level of metallic adhesion oxides
    • The thickness of the ground-coat enamel should not be less than 35 microns or more than 45 microns
    • The thickness of the cover-coat enamel should be about 100 microns
    • Where wet application is used, it is imperative to dry the enamel layer before firing

    Finally, firing is performed at a temperature of about 830°C

  • Joining

    Solfer® grades can easily be welded, whatever the welding process may be. Other joining processes (clinching, crimping) may also be used.

    Other

    Solfer® CA: mechanical properties as well as fish scale resistance comply with EN 10209:2013.

    Processing methods

    Solfer® grades can be formed by bending, profiling or deep drawing.