CR DP800-GI HyperForm
Specification details for CR DP800 HyperForm

EN-Automotive-Product-Metallic coated-AHSS UHSS-All Grades OverviewTSE

Overview

Meeting design demands

Body-in-white design demands affordability and improved crash performance, combined with low weight. Our advanced high-strength steels (AHSS) and ultra high-strength steels (UHSS) help meet those demands and provide good formability.

Tata Steel supports customers in finding the optimum balance between cost, lightweight design potential and performance for specific applications. Total cost of ownership (TCO) concept studies identify and quantify the TCO reduction potential offered by Tata Steel’s advanced steel solutions like HyperForm® for specific automotive applications.

Applications

Applications for our advanced high-strength and ultra high-strength steels include:

  • automotive A-, B- and C-pillars
  • box girders for chassis
  • crash boxes
  • crossbeams and cross members
  • roofbows
  • door and sill reinforcements
  • support components

Relationship with standards

Tata Steel offers the following grades:

Grade VDA 239-100 EN 10346:2015
Dual-phase    
CR DP600-GI/GA CR330Y590T-DP-GI/GA HCT590X+Z/ZF
CR DP600-GI HyperForm® CR330Y590T-DH-GI 1 -
CR DP800-GI/GA CR440Y780T-DP-GI/GA HCT780X+Z/ZF
CR DP800-GI HyperForm® CR440Y780T-DH-GI -
CR DP1000LY-GI CR590Y980T-DP-GI HCT980X+Z
CR DP1000HY-GI CR700Y980T-DP-GI HCT980XG+Z

Please contact us for AHSS with MagiZinc® coating. 
1) VDA draft

EN-Automotive-Product-Metallic coated-All Grades Coatings Surface aspectsTSE

Coatings and Surface aspects

Coatings

Three types of metallic coating are available:

  • Pure zinc. Galvanised steel (GI) is coated with an almost pure zinc coating (>99% zinc)
  • Zinc-iron alloy. Galvannealed steel (GA) is coated with a zinc coating containing approximately 8-12% iron
  • MagiZinc Auto. MagiZinc Auto steel (ZM) is coated with a zinc coating containing additional magnesium and aluminium.
     

Coating weight

Coating

Minimum

Maximum

Pure zinc (Z)90 (6 µm/side)600 (42 µm/side)
Zinc-iron (ZF)90 (6 µm/side)140 (10 µm/side)
MagiZinc (ZM)70 (5 µm/side)200 (14 µm/side)

Coating weight measured in g/m2 double-sided (µm, per side).
 

Surface condition

Surface condition complies with standard: EN 10346:2015. Galvanised steels are available in surface conditions with minimised spangle MB or MC. Galvannealed steels and MagiZinc Auto are available in surface conditions B or C.

Surface condition B: improved surface, suitable for unexposed parts

With this surface condition, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

Surface condition C: best quality surface, suitable for exposed parts

Surface condition C is obtained by skin passing. The controlled surface for the exposed side enables application of a uniform paint finish. The reverse surface has, at least, the characteristics of surface quality B.

Surface finish

Galvanised (GI) grades with surface condition MC are available with different levels of surface finish. For exposed body panels with stringent paint appearance requirements we offer ‘regular’ surface finish. For panels with the highest paint appearance requirements we recommend the premium surface finish Serica FLO®.

Surface roughness

Metallic coated steel for automotive applications can be supplied in various grades of roughness to comply with individual customer norms. If no roughness is specified, roughness will be as shown in the table below

Roughness Ra (µm)
cut off 0.8mmcut off 2.5mm
0.6 - 1.90.7 - 2.2

​​​Surface treatments

The surface treatments available are oiling and T-treatment.

Oiling (O)

The material surface can be oiled with preservative oil. Other types of oil - for increasing strength or reducing weight – are available to help achieve your optimum performance parameters. Please contact us for details.

Tata Steel offers the following range of oiling levels:

Coating typeOiling level
Pure zinc (GI)0.25 - 1.5 g/m2
Zinc-iron(GA)0.5 - 1.5 g/m2
MagiZinc Auto(ZM)0.25 - 1.5 g/m2

Other oiling levels are available on request.
 

T-treatment

Please contact us for further information.

Prime Lubrication Treatment (PLT)

Prime Lubrication Treatment facilitates the manufacturing of stamped components by minimising known issues in stamping and joining.

For further information please visit our Prime Lubrication Treatment (PLT) page.

EN-Automotive-Product-Metallic Coated-AHSS-CR DP800 HyperForm-Properties TSN

Properties

Properties


Mechanical properties

DP800 HyperForm® values are measured longitudinal to the rolling direction.

  Grade CR DP800 HyperForm®
Coating type   GI
Yield strength Rp0,2 N/mm2 440 - 550
Min. BH2 N/mm2 30
Tensile strength Rm N/mm2 780 - 900
Elongation % 18
Min. r-value   -
Min. n-value   0.13
For galvannealed grades (ZF) the minimum elongation before fracture is lowered by 2%.
Elongation after fracture A uses test piece length L0 = 80 mm.
 

Chemical composition

Tata Steel supplies the following cast analysis with maximum values in weight percentages:

  Grade CR DP800 HyperForm®
C Max. 0.18
Mn Max. 2.50
P Max. 0.050
S Max. 0.010
Si Max. 0.80
Al Max. 1.00
Cr+Mo Max. 1.40
All values in weight%.

EN-Automotive-Product-Metallic Coated-AHSS-CR DP800 HyperForm-Dimensions TSN

Dimensions

Dimensional capability
 

Galvanised (GI) products

Dimensions in mm.

Thickness Max. width
From - up to CR DP800 HyperForm®
0.80 - 0.90 1300
0.90 - 1.00 1335
1.00 - 1.10 1370
1.10 - 1.20 1390
1.20 - 1.30 1410
1.30 - 1.40 1440
1.40 - 1.50 1470
1.50 - 1.60 1430
1.60 - 1.70 1400
1.70 - 1.80 1370
1.80 - 2.00 1350
For widths below 900 mm, please contact us.
The tightest available thickness tolerances are according to the ‘Special’ tolerances of EN10143:2006.

 

Tolerances

Tolerances comply with standard EN 10143: 2006.
Tighter tolerances are available - please contact us for details.

EN-EngineeringAutomotive-Product-Metallic Coated-All Grades Shape and Dimensional TolerancesTSE

Shape and dimensional tolerances

Tolerances on thickness

The tolerances comply with standard EN 10143: 2006.
Tighter tolerances are available on request.
Thickness tolerance availability is shown below:

Thickness tolerance

Availability

Full thickness tolerance

Available

Special thickness tolerance

Available

50% of full thickness tolerance

Refer before ordering

 

The following tolerances apply to the grades with a minimum value for the yield strength lower than 260N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.035

± 0.040

± 0.045

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.090

± 0.100

± 0.110

> 2.50

≤ 3.00

± 0.17

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 3.00

≤ 5.00

± 0.20

± 0.20

± 0.21

± 0.15

± 0.16

± 0.17

> 5.00

≤ 6.50

± 0.22

± 0.22

± 0.23

± 0.17

± 0.18

± 0.19

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 260N/mm² ≤ Rp0.2 < 360N/mm² and for grades DX51D and S550GD.

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.035

± 0.040

-

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.16

± 0.080

± 0.090

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.19

± 0.20

± 0.20

± 0.130

± 0.140

± 0.150

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 360N/mm² ≤ Rp0.2 ≤ 420N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.040

± 0.045

-

> 0.40

≤ 0.60

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.090

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.090

± 0.110

± 0.120

> 2.00

≤ 2.50

± 0.18

± 0.20

± 0.21

± 0.120

± 0.130

± 0.140

> 2.50

≤ 3.00

± 0.22

± 0.22

± 0.23

± 0.140

± 0.150

± 0.160

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 420N/mm² < Rp0.2 ≤ 900N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.06

± 0.07

-

± 0.045

± 0.050

-

> 0.40

≤ 0.60

± 0.06

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.60

≤ 0.80

± 0.07

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 0.80

≤ 1.00

± 0.09

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.00

≤ 1.20

± 0.11

± 0.13

± 0.14

± 0.080

± 0.090

± 0.110

> 1.20

≤ 1.60

± 0.15

± 0.16

± 0.18

± 0.090

± 0.110

± 0.120

> 1.60

≤ 2.00

± 0.18

± 0.19

± 0.21

± 0.110

± 0.120

± 0.140

> 2.00

≤ 2.50

± 0.21

± 0.22

± 0.24

± 0.140

± 0.150

± 0.170

> 2.50

≤ 3.00

± 0.24

± 0.25

± 0.26

± 0.170

± 0.180

± 0.190

> 3.00

≤ 5.00

± 0.26

± 0.27

± 0.28

± 0.23

± 0.24

± 0.26

> 5.00

≤ 6.50

± 0.28

± 0.29

± 0.30

± 0.25

± 0.26

± 0.28

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

Tolerances on width

The tolerances on width comply with standard EN 10143: 2006
MagiZinc is not included in the standard, but fulfils EN 10143: 2006 requirements.
Tighter tolerances are available on request.

Tolerances in mm.

Nominal width w Normal tolerances Special tolerances (S)
600 ≤ w ≤ 1200 + 5
0
+ 2
0
1200 < w ≤ 1500 + 6
0
+ 2
0
1500 < w ≤ 1800 + 7
0
+ 3
0
w > 1800 + 8
0
+ 3
0

 

Dimensions and coil weights

Description Availability
Coil diameter inner 610mm
(508 mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2500mm max.
Coil weight 30t max.
33t max available after consultation
Coil weight limited by maximum outer diameter
Maximum weight allowed by road/rail transport
Some products may have different coil weight ranges available
Usually a minimum coil weight up to 85% of the maximum coil weight can be requested
KIM: width ≤ 1200 mm 11.7 - 22.7 kg/mm width
KIM: 1200mm < width ≤ 1700 mm 11.6 - 21.7 kg/mm width
KIM: width > 1700 mm 11.0 kg/mm width and 11.6 - 21.7 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

EN-EngineeringAutomotive-Product-Metallic coated-All grades Further processingTSE

Further processing

Further processing

We have a broad network of Tata Steel service centres across Europe, offering decoiling and slitting services from stock and against short lead times

Light gauge processing

Processing type Slitting Decoiling Blanking
Thickness range (mm) 0.2 - 7.0 0.3 - 6.0 0.3 - 6.0
Width range (mm) 10 - 2050 50 - 2600 200 - 2600
Length range - up to 6 m up to 6 m
Locations Netherlands
Germany
France
Spain
Sweden
Norway
Finland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
Netherlands

For further information please visit our Service Centre webpages.

 

 

EN-Automotive-Product-Metallic coated-AHSS UHSS-DownloadsTSE

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