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  • Cold-rolled - Advanced and ultra high-strength steel

    Our cold-rolled dual phase and hot forming grades include advanced and ultra high-strength steels.

    Originally developed for the demanding automotive market, they also meet a variety of performance and processing requirements for other advanced applications.

    Cold rolled steel: consistent, reliable products

    Our advanced and ultra high-strength cold-rolled steels DP600, DP800, DP1000 and HQ1500 are lightweight and enable design freedom for complex parts.

    Their high yield and ductility ensure shape accuracy and tolerancing, which enable thickness reduction and maintained in-service performance for difficult-to-form parts.

    Contact us

    Tata Steel

    PO Box 10.000

    1970 CA IJmuiden

    Netherlands

    Helpdesk

    T +31 (0)251 494191

    Overview

    Dual phase grades

    Cold-rolled dual phase steels allow you to increase the strength of the finished component or reduce the thickness of the steel - or both. By increasing product performance and helping reduce weight, these steels support you to achieve your optimum performance parameters. The use of dual phase grades increases the output from each tonne of steel and produces products that are strong, light and safe under load. High strain-hardening capacity ensures our dual phase steels have good formability.

     

    Hot forming steel - HQ1500 CR

    Our HQ1500 CR product is an uncoated, ultra high-strength hot forming steel. It combines a strength level of 1500 N/mm2 with excellent shape accuracy. Compared with conventional high-strength, low-alloy grades, HQ1500 CR offers real opportunities for weight reduction through down-gauging. It also ensures good repeatability in long production runs when compared with cold press forming.

     

    Applications

    Automotive body-in-white
    Precision tubes

    Relationship with standards

    Tata Steel can supply the following cold-rolled advanced and ultra high-strength steel grades: 

    Tata Steel

    EN 10338: 2015

    EN 10083: 2009

    DP600

    HCT590X

     

    DP800

    HCT780X

     

    DP1000

    HCT980X

     

    HQ1500 CR

     

    20MnB5 1

    1. This grade is also widely known as 22MnB5.

     

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    Properties

    Mechanical properties

    The values shown for the mechanical properties in the table below are for test pieces taken parallel to the rolling direction.

    Product

    Yield
    strength 1 Rp0.2

    Tensile strength Rm

    Elongation after fraction A
    (L0 = 80mm)

    Min. n-value (10% - Ag)

    Min. BH2

    Grade

    N/mm²

    N/mm²

    %

     

    N/mm²

    DP600

    340 - 420

    600

    20

    0.14

    30

    DP800

    450 - 560

    780

    14

    -

    30

    DP1000

    600 - 750

    980

    10

    -

    30

    1. Yield strength refers to the 0.2% proof strength for the product.

    The mechanical properties of the uncoated product before and after hot forming (taken parallel to the rolling direction) are shown in the table below.

    Product

    As delivered

    Yield
    strength 1 Rp0.2

    Tensile strength Rm

    Elongation after fracture A
    (L0 = 80mm)

    n-value

    r-value

    Grade

    N/mm²

    N/mm²

    %

     

     

    HQ1500 CR - Guaranteed

    ≥ 300

    500 - 580

    ≥ 20

    -

    -

    HQ1500 CR - Typical

    340 - 440

    500 - 580

    > 21

    > 0.150

    0.90 - 1.0

     

    Product

    Hot formed

    Yield strength 1 Rp0.2

    Tensile strength Rm

    Elongation after fracture A
    (L0 = 80mm)

    Grade

    N/mm²

    N/mm²

    %

    HQ1500 CR -
    Guaranteed

    1000 - 1250

    1300 - 1600

    ≥ 5

    HQ1500 CR -
    Typical

    1025 - 1100

    1420 - 1520

    5 - 7

    1. Yield strength refers to the 0.2% proof strength for the product.

     

    Chemical composition

    The table below shows the chemical composition to the draft EN 10338: 2015 (for dual phase) and EN 10083-3: 2006 (for hot forming steel) specifications.

    Product

    C

    Si

    Mn

    P

    S

    Altot

    Cr + Mo 1

    Nb + Ti 2

    V

    B

     

    Max.

    Max.

    Max.

    Max.

    Max.

     

    Max.

    Max.

    Max.

    Max.

    DP600

    0.17

    0.80

    2.20

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

    DP800

    0.18

    0.80

    3.00

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

    DP1000

    0.23

    0.80

    3.00

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

     

     

     

     

     

     

     

     

     

     

     

    HQ1500 CR - Guaranteed

    0.23

    0.3

    1.3

    0.02

    0.010

    0.02 - 0.06

    0.3

    0.04

    -

    0.005

    HQ1500 CR – Typical

    0.22

    0.24

    1.2

    0.01

    0.005

    0.04

    0.2

    0.03

    -

    0.003

    EN 10083 20MnB5

    0.23

    0.4

    1.4

    0.025

    0.035

    -

    -

    -

    -

    0.0008 - 0.005

    1. Refers to Cr max for HQ1500 CR.
    2. Refers to Ti max for HQ1500 CR.
    Values in weight %.


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    Dimensions

    Dimensional capability

    Order volumes may apply to some dimensions - please contact us for details.

    For continuously-annealed (CA).

    Dimensions in mm.

    Thickness Max. width      
    From - up to DP600 1 DP800 2 DP1000 HQ1500 CR
    0.70 - 0.80 - - - -
    0.80 - 0.85 1437 1400 1240 -
    0.85 - 0.90 1437 1400 1255 -
    0.90 - 0.95 1437 1400 1280 1188
    0.95 - 1.00 1437 1400 1330 1188
    1.00 - 1.10 1437 1400 1380 1188
    1.10 - 1.20 1437 1400 1420 1188
    1.20 - 1.30 1437 1400 1420 1238
    1.30 - 1.40 1437 1400 1440 1238
    1.40 - 1.60 1500 1400 1460 1313
    1.60 - 1.70 1500 1400 1460 1363
    1.70 - 1.80 1500 1400 1480 1363
    1.80 - 1.90 1500 1419 1480 1388
    1.90 - 1.95 1500 1419 1480 1388
    1.95 - 2.00 1500 1419 1500 1388

    1. DP600 thicknesses from 0.7 mm up to 0.8mm are under development. Please contact us for latest availability.
    2. DP800 thicknesses from 0.7 mm up to 0.8mm for widths up to 1475mm are under development. Please contact us for latest availability.
    Minimum width is 900mm for all grades.




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    Overview

    Overview

    Dual phase grades

    Cold-rolled dual phase steels allow you to increase the strength of the finished component or reduce the thickness of the steel - or both. By increasing product performance and helping reduce weight, these steels support you to achieve your optimum performance parameters. The use of dual phase grades increases the output from each tonne of steel and produces products that are strong, light and safe under load. High strain-hardening capacity ensures our dual phase steels have good formability.

     

    Hot forming steel - HQ1500 CR

    Our HQ1500 CR product is an uncoated, ultra high-strength hot forming steel. It combines a strength level of 1500 N/mm2 with excellent shape accuracy. Compared with conventional high-strength, low-alloy grades, HQ1500 CR offers real opportunities for weight reduction through down-gauging. It also ensures good repeatability in long production runs when compared with cold press forming.

     

    Applications

    Automotive body-in-white
    Precision tubes

    Relationship with standards

    Tata Steel can supply the following cold-rolled advanced and ultra high-strength steel grades: 

    Tata Steel

    EN 10338: 2015

    EN 10083: 2009

    DP600

    HCT590X

     

    DP800

    HCT780X

     

    DP1000

    HCT980X

     

    HQ1500 CR

     

    20MnB5 1

    1. This grade is also widely known as 22MnB5.

     

    back to top

    Properties

    Properties

    Mechanical properties

    The values shown for the mechanical properties in the table below are for test pieces taken parallel to the rolling direction.

    Product

    Yield
    strength 1 Rp0.2

    Tensile strength Rm

    Elongation after fraction A
    (L0 = 80mm)

    Min. n-value (10% - Ag)

    Min. BH2

    Grade

    N/mm²

    N/mm²

    %

     

    N/mm²

    DP600

    340 - 420

    600

    20

    0.14

    30

    DP800

    450 - 560

    780

    14

    -

    30

    DP1000

    600 - 750

    980

    10

    -

    30

    1. Yield strength refers to the 0.2% proof strength for the product.

    The mechanical properties of the uncoated product before and after hot forming (taken parallel to the rolling direction) are shown in the table below.

    Product

    As delivered

    Yield
    strength 1 Rp0.2

    Tensile strength Rm

    Elongation after fracture A
    (L0 = 80mm)

    n-value

    r-value

    Grade

    N/mm²

    N/mm²

    %

     

     

    HQ1500 CR - Guaranteed

    ≥ 300

    500 - 580

    ≥ 20

    -

    -

    HQ1500 CR - Typical

    340 - 440

    500 - 580

    > 21

    > 0.150

    0.90 - 1.0

     

    Product

    Hot formed

    Yield strength 1 Rp0.2

    Tensile strength Rm

    Elongation after fracture A
    (L0 = 80mm)

    Grade

    N/mm²

    N/mm²

    %

    HQ1500 CR -
    Guaranteed

    1000 - 1250

    1300 - 1600

    ≥ 5

    HQ1500 CR -
    Typical

    1025 - 1100

    1420 - 1520

    5 - 7

    1. Yield strength refers to the 0.2% proof strength for the product.

     

    Chemical composition

    The table below shows the chemical composition to the draft EN 10338: 2015 (for dual phase) and EN 10083-3: 2006 (for hot forming steel) specifications.

    Product

    C

    Si

    Mn

    P

    S

    Altot

    Cr + Mo 1

    Nb + Ti 2

    V

    B

     

    Max.

    Max.

    Max.

    Max.

    Max.

     

    Max.

    Max.

    Max.

    Max.

    DP600

    0.17

    0.80

    2.20

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

    DP800

    0.18

    0.80

    3.00

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

    DP1000

    0.23

    0.80

    3.00

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

     

     

     

     

     

     

     

     

     

     

     

    HQ1500 CR - Guaranteed

    0.23

    0.3

    1.3

    0.02

    0.010

    0.02 - 0.06

    0.3

    0.04

    -

    0.005

    HQ1500 CR – Typical

    0.22

    0.24

    1.2

    0.01

    0.005

    0.04

    0.2

    0.03

    -

    0.003

    EN 10083 20MnB5

    0.23

    0.4

    1.4

    0.025

    0.035

    -

    -

    -

    -

    0.0008 - 0.005

    1. Refers to Cr max for HQ1500 CR.
    2. Refers to Ti max for HQ1500 CR.
    Values in weight %.


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    Dimensions

    Dimensions

    Dimensional capability

    Order volumes may apply to some dimensions - please contact us for details.

    For continuously-annealed (CA).

    Dimensions in mm.

    Thickness Max. width      
    From - up to DP600 1 DP800 2 DP1000 HQ1500 CR
    0.70 - 0.80 - - - -
    0.80 - 0.85 1437 1400 1240 -
    0.85 - 0.90 1437 1400 1255 -
    0.90 - 0.95 1437 1400 1280 1188
    0.95 - 1.00 1437 1400 1330 1188
    1.00 - 1.10 1437 1400 1380 1188
    1.10 - 1.20 1437 1400 1420 1188
    1.20 - 1.30 1437 1400 1420 1238
    1.30 - 1.40 1437 1400 1440 1238
    1.40 - 1.60 1500 1400 1460 1313
    1.60 - 1.70 1500 1400 1460 1363
    1.70 - 1.80 1500 1400 1480 1363
    1.80 - 1.90 1500 1419 1480 1388
    1.90 - 1.95 1500 1419 1480 1388
    1.95 - 2.00 1500 1419 1500 1388

    1. DP600 thicknesses from 0.7 mm up to 0.8mm are under development. Please contact us for latest availability.
    2. DP800 thicknesses from 0.7 mm up to 0.8mm for widths up to 1475mm are under development. Please contact us for latest availability.
    Minimum width is 900mm for all grades.




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