Blued steels are cold rolled steels that have been oxidised by annealing in a special installation to produce a very thin magnetite layer (Fe304) on the surface (less than 1 µm thick).
Blued steels provide protection against corrosion for parts whose surface cannot be protected by normal painting or any metallic coating processes. The magnetite layer can withstand moderate bending and drawing operations. The sheet surface is very clean and retains its attractive appearance during storage.
The main areas of use are:
- Stove pipes
- Food contact other than packaging
- Cake and biscuit moulds
- Baking trays
- Lining of industrial bread ovens
Blued steels are suitable for food contact, under certain conditions laid down in European Regulation (EC) No. 1935/2004 and French standard NF A 36-714. Please contact us for further information on this subject.
Recommendations for use
The processing conditions for blued steels are similar to those for cold forming. However, in the case of difficult drawing operations, the oxide layer may crack and lose its continuity.
Corrosion resistance (salt spray test)
Corrosion resistance is better than for uncoated cold rolled steels, but is nevertheless limited, particularly in humid atmospheres.
Blued steels can be supplied with or without oil film.
|DC01BS AM FCE||DC01|
|DC03BS AM FCE||DC03|
|DC04BS AM FCE||DC04|
|Thickness (mm)||Min width||DC01BS AM FCE, DC03BS AM FCE, DC04BS AM FCE|
|0.50 ≤ th < 2.00||660||1650|
|DC01BS AM FCE||T||0.5 - 0.7||140 - 300||270 - 410||≥ 26||-||-|
|0.7 - 2||140 - 280||≥ 28|
|DC03BS AM FCE||T||0.5 - 0.7||140 - 260||270 - 370||≥ 32||≥ 1.3||-|
|0.7 - 2||140 - 240||≥ 34|
|DC04BS AM FCE||T||0.5 - 0.7||140 - 230||270 - 350||≥ 36||≥ 1.8||≥ 0.180|
|0.7 - 2||140 - 210||≥ 38|
|DC01BS AM FCE||≤ 0.120||≤ 0.60||≤ 0.045||≤ 0.035||-|
|DC03BS AM FCE||≤ 0.100||≤ 0.45||≤ 0.025||≤ 0.025||≤ 0.03|
|DC04BS AM FCE||≤ 0.080||≤ 0.40||≤ 0.030||≤ 0.030||≤ 0.03|
|Values in bold: tighter than the standard|
For commercial information (quotations, deliveries, product availability):
For technical questions about these products: email@example.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.