Docol® 550LA high strength low alloy

Loading component...

Loading component...

General Product Description

The Docol 550LA steels are high-strength low-alloy steels that offer consistent properties for modern, rapid production methods. It offers consistent properties for modern, rapid production methods. Typical applications include bent profiles. Docol HR550LA-UC can after agreement be adapted and delivered as dual certified with S550MC according to EN 10149-2.

Dimension Range

Hot rolled / UC: thickness 2.00-6.00 mm, width up to 1600 mm.

Hot rolled / GI: thickness 2.00-2.50 mm, width up to 1170 mm.

Slit strip and cut to length sheets are available upon request.

Grade and coating specific restrictions on available dimensions may occur.

Mechanical Properties

Docol HR​550LA

Standard
VDA239-100:2016
Coating
UC, GI*
Test direction
L
Yield strength Rp0.2
(MPa)
550 - 670
Tensile strength Rm
(MPa)
610 - 750
Elongation A80
(min %)
12
Elongation A5
(%)
16
Min. inner bending radius for a 90° bend
1.0 x t

* Available upon request.

1)A80 value applies for thicknesses < 3.00 mm.

2)A5 value applies for thicknesses ≥ 3.00 mm.

3)In some cases tight bending radius may cause micro-cracking of the coating in the bend area. Where design permits, users are encouraged to employlarger radius.

4)For GI coated material the elongation is reduced by 1 units.

Chemical Composition (heat analysis)

Docol HR​550LA

Coating
UC
C
(max %)
0.12
Si
(max %)
0.60
Mn
(max %)
1.80
P
(max %)
0.025
S
(max %)
0.025
Al
(%)
From 0.015
Ti
(max %)
0.15
Nb
(max %)
0.09
V
(max %)
0.20

Tolerances

Hot rolled (UC): Tolerances in accordance to EN10051.

Hot-dip galvanized (GI): Tolerances in accordance to EN10143.

Customized dimensional and shape tolerances are available upon request.

Surface treatments

Uncoated (UC): available as oiled.

Hot-dip galvanized (GI): available as oiled and/or chemically passivated.

All surface treatments are in accordance with RoHS directive (2011/65/EU) and do not contain Chromium VI (Cr6+). Surface treatments provide only temporary surface protection during transportation and storage. In order to avoid corrosion damages, care must be taken to keep the products dry during transportation and storage. If they become wet, they must be separated and situated so that they are dried quickly.

Fabrication and Other Recommendations

For information concerning fabrication, see SSAB’s brochures on www.ssab.com or consult Tech Support, [email protected].

Appropriate health and safety precautions must be taken when bending, welding, cutting, grinding or otherwise working on the product.

Docol® High Strength Low Alloy steel product offer

Loading component...

Loading component...

Related content

Loading component...