Docol® 1700M martensitic

General Product Description

A martensitic steel for automotive applications, Docol 1700M allows for increased crashworthiness, lightweight design and cost-efficient production methods for the automotive industry. Docol 1700M is one of the strongest cold rolled advanced high-strength steels on the market and has become the material of choice for automotive applications such as bumper systems and structural components.

Dimension Range

Cold rolled / UC: thickness 1.00-2.10 mm, width up to 1250 mm.

Mechanical Properties

	Standard	Coating	Test direction	Yield strength R_p0.2 (MPa)	Tensile strength R_m (MPa)	Elongation A₈₀ (min %)	BH₂ (min MPa)	Min. inner bending radius for a 90° bend
Docol CR1350Y1700T-MS	VDA 239-100	UC	L	1350 - 1700	1700 - 2000	3	30	4.0 x t

Docol CR1350Y1700T-MS

Standard

VDA 239-100

Coating

UC

Test direction

L

Yield strength R_p0.2
(MPa)

1350 - 1700

Tensile strength R_m
(MPa)

1700 - 2000

Elongation A₈₀
(min %)

3

BH₂
(min MPa)

30

Min. inner bending radius for a 90° bend

4.0 x t

Chemical Composition (ladle analysis)

	Coating	C (max %)	Si (max %)	Mn (max %)	P (max %)	S (max %)	Al (%)	Nb+Ti (max %)	Cr+Mo (max %)	B (max %)	Cu (max %)
Docol CR1350Y1700T-MS	UC	0.35	1.00	3.00	0.020	0.010	From 0.010	0.15	1.00	0.010	0.20

Docol CR1350Y1700T-MS

Coating

UC

C
(max %)

0.35

Si
(max %)

1.00

Mn
(max %)

3.00

P
(max %)

0.020

S
(max %)

0.010

Al
(%)

From 0.010

Nb+Ti
(max %)

0.15

Cr+Mo
(max %)

1.00

B
(max %)

0.010

Cu
(max %)

0.20

Tolerances

Cold rolled (UC): Tolerances in accordance to EN 10131.

Customized dimensional and shape tolerances are available upon request.

The following improved flatness tolerances are available for cold rolled martensitic products upon request. The tolerances are valid for mother coils only before slitting.

Thickness (mmin)	Max height¹⁾ (mm)
1.00 - 1.390.0394 - 0.0547	8
1.40 - 1.590.0551 - 0.0626	7
1.60 - 1.790.0630 - 0.0705	6
1.80 - 2.100.0709 - 0.0827	5

Thickness
(mmin)

1.00 - 1.390.0394 - 0.0547

Max height¹⁾
(mm)

8

Thickness
(mmin)

1.40 - 1.590.0551 - 0.0626

Max height¹⁾
(mm)

7

Thickness
(mmin)

1.60 - 1.790.0630 - 0.0705

Max height¹⁾
(mm)

6

Thickness
(mmin)

1.80 - 2.100.0709 - 0.0827

Max height¹⁾
(mm)

5

¹⁾ Distance from the top surface of the strip normal to flat surface. Measured with a ruler on sheets of mother coil width and minimum length 1200 mm. Cross bow and coil set excluded.

Surface Treatments

Uncoated (UC): available as oiled.

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® Martensitic steel product offer

Docol® 1700M martensitic

General Product Description

Dimension Range

Mechanical Properties

Chemical Composition (ladle analysis)

Tolerances

Surface Treatments

Fabrication and Other Recommendations

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