Properties

Blued steels are cold rolled sheets that have been oxidised by annealing in a special installation to produce a very thin magnetite layer (Fe304) on the surface (less than 1 Ám thick).

Advantages

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.

Applications

The main areas of use are:

 

Blued steels are suitable for food contact, under certain conditions laid down in the Regulation (EC) No. 1935/2004 and the 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 greater than for uncoated cold rolled steels, but is nevertheless limited, particularly in humid atmospheres.

Surface quality

Blued steels can be supplied with or without oil film.

Brand correspondence

 EN 10130:2006
DC01BS AM FCE DC01
DC03BS AM FCE DC03
DC04BS AM FCE DC04

Dimensions

Thickness (mm)Min widthDC01BS AM FCE, DC03BS AM FCE, DC04BS AM FCE
Max width
0.50 ≤ th < 2.006601650

Mechanical properties

 
Direction
Thickness (mm)
Re (MPa)
Rm (MPa)
A80 (%)
r 90
n 90
DC01BS AM FCET0.5 - 0.7140 - 300270 - 410≥ 26--
0.7 - 2140 - 280≥ 28
DC03BS AM FCET0.5 - 0.7140 - 260270 - 370≥ 32≥ 1.3-
0.7 - 2140 - 240≥ 34
DC04BS AM FCET0.5 - 0.7140 - 230270 - 350≥ 36≥ 1.8≥ 0.180
0.7 - 2140 - 210≥ 38


Chemical composition

 
C (%)
Mn (%)
P (%)
S (%)
Si (%)
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: 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.