Properties

Solfer® grades are obtained by decarburisation. Two decarburisation processes are used:

 

 

It is worth noting that the DC06EK EN 10209:2013 and DC07EK AM FCE grades are also compatible with the two-coat / one-fire enamelling process.

Advantages

Solfer® and Solfer®+ grades are suitable for the manufacture of complex parts (medium to deep drawing) and are compatible with all existing enamelling processes (direct-on white or coloured enamelling after degreasing, pickling and coating with nickel, two-coat / one-fire or ground enamelling after degreasing), with enamel layers being applied as either a liquid or a powder. These grades offer excellent resistance to "fish scale" defects. A minimum TH of 100 is guaranteed, in accordance with EN 10209:2013.

 

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 steel 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.

Applications

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.

Recommendations for use

Forming

 

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


Joining

 

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


Direct-on enamelling: Solfer® and Solfer®+ grades

 

Surface preparation:

 
Surface preparation before enamelling must be performed with the greatest care (degreasing, pickling and coating with nickel). This is essential to achieve a good surface appearance of the part after enamelling and good adhesion of the enamel. The level of iron loss after pickling and the quantity of nickel deposited must therefore be monitored very precisely.

 

Application of the enamel and firing:


The thickness of the enamel layer deposited is generally about 130 microns. Moreover, Solfer® and Solfer®+ grades are compatible with all the common enamelling processes: wet spraying, electrostatic liquid or powder deposition. Taking into account its limited Al content, the Solfer® grade is particularly suitable for the ETE application process.

 

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.

 


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

 

Surface preparation:

 

 

Enamel application and firing:

 

Brand correspondence

 EN 10209:2013DIN 1623/3ASTM A424JIS 3141 + 3133
Solfer® DC03EDED3Type 1 CSSPP
Solfer®+ DC04EDED4Type 1 DSSPP
Solfer® CA     

Dimensions

 

Thickness (mm)Min widthSolfer®, Solfer®+Solfer® CA
Max widthMax width
0.40 ≤ th < 0.50650-1460
0.50 ≤ th < 0.701640
0.70 ≤ th < 0.801800
0.80 ≤ th < 1.601680
1.60 ≤ th < 2.001365


Mechanical properties


 
Direction
Thickness (mm)
Re (MPa)
Rm (MPa)
A80 (%)
Solfer®T0.5 - 0.7140 - 260270 - 370≥ 32
0.7 - 2140 - 240≥ 34
Solfer®+T0.5 - 0.7140 - 230270 - 350≥ 36
0.7 - 2140 - 210≥ 38
Solfer® CAT0.4 - 0.5140 - 260270 - 390≥ 32
0.5 - 0.7140 - 240≥ 34
0.7 - 2140 - 220≥ 36

Mechanical properties as delivered

 

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



Chemical composition


  Notes
C (%)
Mn (%)
P (%)
S (%)
Si (%)
Al (%)
Solfer®   ≤ 0.004 ≤ 0.40 - - ≤ 0.030 ≤ 0.020
Solfer®+   ≤ 0.004 ≤ 0.40 - - ≤ 0.030 ≤ 0.060
Solfer® CA 1 0.025 - 0.045 0.16 - 0.24 ≤ 0.018 ≤ 0.018 ≤ 0.030 -
1. C (%): heat analysis

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



For commercial information (quotations, deliveries, product availability):

For technical questions about these products: flateurope.technical.assistance@arcelormittal.com


All details provided in the ArcelorMittal Flat Carbon Europe S.A. catalogue are for information purposes only. ArcelorMittal Flat Carbon Europe S.A. reserves the right to change its product range at any time without prior notice.