Docol® 700LA high strength low alloy
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Acier automobile Docol® 700LA, HSLA laminé à chaud
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General Product Description
The Docol 700LA steels are high-strength low-alloy steels that offer consistent properties for modern, rapid production methods. The Docol 700LA steels are made for cold forming of stronger and lighter structures. Typical applications include components and parts in demanding load-bearing structures such as chassis. Docol HR700LA-UC can after agreement be adapted and delivered as dual certified with S700MC according to EN 10149-2.
Dimension Range
Hot rolled / UC: thickness 2.00-6.00 mm, width up to 1600 mm.
Hot rolled / EG: thickness 2.00-3.00 mm, width up to 1360 mm.
Hot rolled / GI: thickness 2.00-4.00 mm, width up to 1400 mm.
Slit strip and cut to length sheets are available upon request.
Grade and coating specific restrictions on available dimensions may occur.
Mechanical Properties
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| Standard | Coating | Test direction |
Yield strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Elongation A80 1) (min %) |
Elongation A5 3) (%) |
Min. inner bending radius for a 90° bend 4) | |
|---|---|---|---|---|---|---|---|---|
| Docol HR700LA | VDA 239-100 | UC, EG | L | 700 - 850 | 750 - 950 | 10 | 13 | 1.2 x t |
| VDA 239-100 | GI* | L | 700 - 850 | 750 - 950 | 10 2) | — | 1.2 x t |
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Comparison
Docol HR700LA
Standard
VDA 239-100
Coating
UC, EG
Test direction
L
Yield strength Rp0.2
(MPa)
(MPa)
700 - 850
Tensile strength Rm
(MPa)
(MPa)
750 - 950
Elongation A80 1)
(min %)
(min %)
10
Elongation A5 3)
(%)
(%)
13
Min. inner bending radius for a 90° bend 4)
1.2 x t
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Docol HR700LA
Standard
VDA 239-100
Coating
GI*
Test direction
L
Yield strength Rp0.2
(MPa)
(MPa)
700 - 850
Tensile strength Rm
(MPa)
(MPa)
750 - 950
Elongation A80 1)
(min %)
(min %)
10 2)
Elongation A5 3)
(%)
(%)
—
Min. inner bending radius for a 90° bend 4)
1.2 x t
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The testing of mechanical properties of electro galvanized products is conducted without coating.
* Available upon request.
1) A80 value applies for thicknesses < 3.00 mm.
2) For GI coatings the minimum elongation value is reduced by 1 unit.
3) A5 value applies for thicknesses ≥ 3.00 mm.
4) In some cases tight bending radius may cause micro-cracking of the coating in the bend area. Where design permits, users are encouraged to employ larger radius.
Chemical Composition (ladle analysis)
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| Coating | C (max %) |
Si (max %) |
Mn (max %) |
P (max %) |
S (max %) |
Al (%) |
Ti (max %) |
Nb (max %) |
Cu (max %) |
|
|---|---|---|---|---|---|---|---|---|---|---|
| Docol HR700LA | UC, EG, GI* | 0.12 | 0.60 | 2.10 | 0.030 | 0.025 | From 0.015 | 0.20 | 0.10 | 0.20 |
Compare parameters
Select one parameter to compare
Comparison
Docol HR700LA
Coating
UC, EG, GI*
C
(max %)
(max %)
0.12
Si
(max %)
(max %)
0.60
Mn
(max %)
(max %)
2.10
P
(max %)
(max %)
0.030
S
(max %)
(max %)
0.025
Al
(%)
(%)
From 0.015
Ti
(max %)
(max %)
0.20
Nb
(max %)
(max %)
0.10
Cu
(max %)
(max %)
0.20
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* Available upon request.
Tolerances
Hot rolled (UC, EG): Tolerances in accordance to EN 10051.
Hot-dip galvanized (GI): Tolerances in accordance to EN 10143.
Customized dimensional and shape tolerances are available upon request.
Coatings
The metal coating options for Docol products include:
Hot-dip zinc coating (GI) consists almost entirely of zinc (>99%). It is lead free, resulting in a small zinc spangle size. The coating provides good corrosion protection.
Electrogalvanized coating (EG) is applied continuously by electro deposition. The coating consists of zinc (>99%). Electrogalvanized steel is characterized by its excellent surface quality and uniform coating thickness.
Grade specific availability of metal coatings for Docol products is given in the Mechanical properties table (Coating).
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| Coating type | Coating class | Standard | Closest in EN standard, informative 1) | Coating mass per side, single spot test (g/m2) | Thickness per side informative (µm) |
|---|---|---|---|---|---|
| GI | 40/40 | VDA 239-100 | Z100 | 40 - 60 2) | 5.6 - 8.5 |
| GI | 50/50 | VDA 239-100 | — | 50 - 70 2) | 7.0 - 9.9 |
| GI | 60/60 | VDA 239-100 | Z140 | 60 - 90 | 8.5 - 12.7 |
| GI | 70/70 | VDA 239-100 | — | 70 - 100 | 9.9 - 14.1 |
| GI | 85/85 | VDA 239-100 | — | 85 - 115 | 12.0 - 16.2 |
| GI | 115/115 | VDA 239-100 | Z275 | 115 - 155 | 16.2 - 21.8 |
| EG | 12/12 | VDA 239-100 | ZE25/25 | 12 - 32 | 1.7 - 4.5 |
| EG | 18/18 | VDA 239-100 | — | 18 - 38 | 2.5 - 5.4 |
| EG | 29/29 | VDA 239-100 | ZE50/50 | 29 - 49 | 4.1 - 6.9 |
| EG | 47/47 | VDA 239-100 | ZE75/75 | 47 - 61 | 6.6 - 8.6 |
| EG | 50/50 | VDA 239-100 | — | 50 - 70 | 7.0 - 9.9 |
| EG | 53/53 | VDA 239-100 | — | 53 - 73 | 7.5 - 10.3 |
| EG | 60/60 | VDA 239-100 | — | 60 - 80 | 8.5 - 11.3 |
| EG | 65/65 | VDA 239-100 | ZE100/100 | 65 - 85 | 9.2 - 12.0 |
| EG | 70/70 | VDA 239-100 | — | 70 - 90 | 9.9 - 12.7 |
Compare parameters
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Comparison
Coating type
GI
Coating class
40/40
Standard
VDA 239-100
Closest in EN standard, informative 1)
Z100
Coating mass per side, single spot test (g/m2)
40 - 60 2)
Thickness per side informative (µm)
5.6 - 8.5
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Coating type
GI
Coating class
50/50
Standard
VDA 239-100
Closest in EN standard, informative 1)
—
Coating mass per side, single spot test (g/m2)
50 - 70 2)
Thickness per side informative (µm)
7.0 - 9.9
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Coating type
GI
Coating class
60/60
Standard
VDA 239-100
Closest in EN standard, informative 1)
Z140
Coating mass per side, single spot test (g/m2)
60 - 90
Thickness per side informative (µm)
8.5 - 12.7
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Coating type
GI
Coating class
70/70
Standard
VDA 239-100
Closest in EN standard, informative 1)
—
Coating mass per side, single spot test (g/m2)
70 - 100
Thickness per side informative (µm)
9.9 - 14.1
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Coating type
GI
Coating class
85/85
Standard
VDA 239-100
Closest in EN standard, informative 1)
—
Coating mass per side, single spot test (g/m2)
85 - 115
Thickness per side informative (µm)
12.0 - 16.2
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Coating type
GI
Coating class
115/115
Standard
VDA 239-100
Closest in EN standard, informative 1)
Z275
Coating mass per side, single spot test (g/m2)
115 - 155
Thickness per side informative (µm)
16.2 - 21.8
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Coating type
EG
Coating class
12/12
Standard
VDA 239-100
Closest in EN standard, informative 1)
ZE25/25
Coating mass per side, single spot test (g/m2)
12 - 32
Thickness per side informative (µm)
1.7 - 4.5
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Coating type
EG
Coating class
18/18
Standard
VDA 239-100
Closest in EN standard, informative 1)
—
Coating mass per side, single spot test (g/m2)
18 - 38
Thickness per side informative (µm)
2.5 - 5.4
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Coating type
EG
Coating class
29/29
Standard
VDA 239-100
Closest in EN standard, informative 1)
ZE50/50
Coating mass per side, single spot test (g/m2)
29 - 49
Thickness per side informative (µm)
4.1 - 6.9
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Coating type
EG
Coating class
47/47
Standard
VDA 239-100
Closest in EN standard, informative 1)
ZE75/75
Coating mass per side, single spot test (g/m2)
47 - 61
Thickness per side informative (µm)
6.6 - 8.6
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Coating type
EG
Coating class
50/50
Standard
VDA 239-100
Closest in EN standard, informative 1)
—
Coating mass per side, single spot test (g/m2)
50 - 70
Thickness per side informative (µm)
7.0 - 9.9
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Coating type
EG
Coating class
53/53
Standard
VDA 239-100
Closest in EN standard, informative 1)
—
Coating mass per side, single spot test (g/m2)
53 - 73
Thickness per side informative (µm)
7.5 - 10.3
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Coating type
EG
Coating class
60/60
Standard
VDA 239-100
Closest in EN standard, informative 1)
—
Coating mass per side, single spot test (g/m2)
60 - 80
Thickness per side informative (µm)
8.5 - 11.3
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Coating type
EG
Coating class
65/65
Standard
VDA 239-100
Closest in EN standard, informative 1)
ZE100/100
Coating mass per side, single spot test (g/m2)
65 - 85
Thickness per side informative (µm)
9.2 - 12.0
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Coating type
EG
Coating class
70/70
Standard
VDA 239-100
Closest in EN standard, informative 1)
—
Coating mass per side, single spot test (g/m2)
70 - 90
Thickness per side informative (µm)
9.9 - 12.7
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Docol metal coated products are available with surface quality for unexposed applications.
In addition to these coating masses, OEM specific coatings are available upon request.
1) For GI and GA the closest informative value refers to EN 10346. For EG to EN 10152.
2) For hot-dipped (GI, ZA, GA) hot rolled (HR) grades, the coating mass tolerance is increased to 30 g/m² by increasing the upper limit.
Surface Treatments
Uncoated (UC): available as oiled.
Hot-dip galvanized (GI): available as oiled and/or chemically passivated.
Electrogalvanized (EG): available as oiled and/or chemically passivated or phosphated.
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.
Appropriate health and safety precautions must be taken when bending, welding, cutting, grinding or otherwise working on the products.
Docol® High Strength Low Alloy steel product offer
Docol® 420LA high strength low alloy
Docol HR100XF
Docol HR110XF
Docol® S600MC high strength low alloy
Docol® S650MC high strength low alloy
Docol® S700MC high strength low alloy
Docol® S900MC high strength low alloy
Docol S960MC
Docol® 460LA high strength low alloy
Docol® 500LA high strength low alloy
Docol® 550LA high strength low alloy
Docol® 600LA high strength low alloy
Docol® 650LA high strength low alloy
Docol® 700LA high strength low alloy
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