• Choose Language
  • Cold-rolled - AHSS/UHSS (US Standard units)

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

    Originally developed for demanding automotive applications, they deliver benefits for your products and processes. 

    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.

    Tata Steel

    Chicago office

    475 N. Martingale Road, Suite 400

    Schaumburg, IL 60173

    T +1 847 619 0400 or 1800 542 6244 (N.America only)

    F +1 847 619 0468

    Overview

    This section is provided in metric units to align with automotive specification formats.

    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 of these things. As a result, you can achieve the lowest total cost of ownership. Using 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

    Our HQ1500 product is an uncoated, ultra high-strength boron steel designed for hot forming. It combines a strength level of 21.75 ksi with excellent shape accuracy. Compared with conventional high-strength, low-alloy grades, HQ1500 offers real opportunities for weight reduction through downgauging. It also ensures good repeatability in long production runs when compared with cold press forming.

     

    Applications

    • Automotive body-in-white
    • Automotive superstructure components
    • Precision tubes

    This section is provided in metric units to align with automotive specification formats.

     

    Relationship with standards

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

    Tata Steel Grade

    SAE J2745: 2007

    EN 10338: 2015

    EN 10083: 2009

    DP600

    DP 590T/340Y

    HCT590X

    -

    DP800

    DP 780T/420Y

    HCT780X

    -

    DP1000

    DP 980T/550Y

    HCT980X

    -

    HQ1500

    -

    -

    20MnB5 1

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

    Properties

    Mechanical properties

    Cold-rolled dual phase steels have the following mechanical properties.

    SAE J2745

    Yield
    strength 1

    Min.
    tensile strength

    Min. elongation after
    fracture A
    (L0 = 50mm)

    Min.
    n-value
    (A 10 - 20%)2

    Min. BH2

    Grade

    N/mm²

    N/mm²

    %

     

    N/mm²

    DP 590T/340Y

    340 - 440

    590

    21

    0.14

    30

    DP 780T/420Y

    420 - 550

    780

    15

    0.11

    30

    DP 980T/550Y

    550 - 730

    980

    8

    -

    30

    1. Yield strength refers to the 0.2% proof strength for the product.
    2. If maximum uniform elongation is less than 20%, then n-value shall be measured from 10% to end of uniform elongation.
    Test direction shall be shall be either longitudinal or transverse, but not both, as agreed upon between customer and supplier.
    In the absence of an agreement, the longitudinal direction shall be used.

     

     Our cold-rolled ultra high-strength boron steel has the following mechanical properties.

     

    As delivered

    Tata Steel

    Yield
    strength 1
    ReL

    Tensile strength
    Rm

    Elongation after fracture A (L0 = 80mm)

    n-value

    r-value

    Grade

    N/mm²

    N/mm²

    %

     

     

    HQ1500 - Guaranteed

    ≥ 300

    500 - 580

    ≥ 20

    -

    -

    HQ1500 - Typical

    340 - 440

    500 - 580

    > 21

    > 0.150

    0.90 - 1.0

     

     

     

    Hot formed

    Tata Steel

    Yield strength 1 ReL

    Tensile strength Rm

    Elongation
    after fraction A
    (L0 = 50mm)

    Grade

    N/mm²

    N/mm²

    %

    HQ1500 - Guaranteed

    1000 - 1250

    1300 - 1600

    ≥ 5

    HQ1500 - Typical

    1025 - 1100

    1420 - 1520

     ≥ 5

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

     

    Chemical composition

    Cold-rolled advanced high-strength steels supplied by Tata Steel comply to the following heat analysis with maximum values in weight percentages:

    SAE J2745

    C

    Si

    Mn

    P

    S

    Altot

    Cr + Mo 1

    Nb + Ti 2

    V

    B

    Grade

    Max.

    Max.

    Max.

    Max.

    Max.

     

    Max.

    Max.

    Max.

    Max.

    DP 590T/340Y

    0.17

    0.80

    2.20

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

    DP 780T/420Y

    0.18

    0.80

    3.00

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

    DP 980T/550Y

    0.23

    0.80

    3.00

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

     

     

     

     

     

     

     

     

     

     

     

    HQ1500 - Guaranteed

    0.23

    0.3

    1.3

    0.02

    0.010

    0.02 - 0.06

    0.3

    0.04

    -

    0.005

    HQ1500 – Typical

    0.22

    0.24

    1.2

    0.01

    0.005

    0.04

    0.2

    0.03

    -

    0.003

    1. Refers to Cr max for HQ1500.
    2. Refers to Ti max for HQ1500.

    Dimensions

    Order volumes may apply to some dimensions - please contact us.
    For continuously annealed (CA) Products.
    Dimensions in mm.

    Thickness

    Max width

    From - up to

    DP 590T/340Y1

    DP 780T/420Y2

    DP 980T/550Y3

    HQ1500

    0.70 - 0.80 1, 2

    -

    -

    -

    -

    0.80 - 0.90

    1450

    1260

    -

    1150

    0.90 - 1.00

    1450

    1260

    -

    1150

    1.00 - 1.20

    1450

    1260

    1240

    1150

    1.20 - 1.40

    1450

    1260

    1275

    1300

    1.40 - 1.60

    1468

    1415

    1275

    1300

    1.60 - 1.80

    1468

    1415

    -

    1300

    1.80 - 2.00

    1468

    1415

    -

    -

    1. DP 590T/340Y thicknesses from 0.7mm up to 0.8mm for widths up to 1500mm are under development.
    2. DP 780T/420Y thicknesses from 0.7mm up to 0.8mm for widths up to 1475mm are under development.
    3. DP 980T/550Y thicknesses from 0.8mm up to 1.0mm for widths up to 1520mm are under development.
    Please contact us for latest availability.
    Minimum width is 900mm for all grades.

    Overview

    Overview

    This section is provided in metric units to align with automotive specification formats.

    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 of these things. As a result, you can achieve the lowest total cost of ownership. Using 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

    Our HQ1500 product is an uncoated, ultra high-strength boron steel designed for hot forming. It combines a strength level of 21.75 ksi with excellent shape accuracy. Compared with conventional high-strength, low-alloy grades, HQ1500 offers real opportunities for weight reduction through downgauging. It also ensures good repeatability in long production runs when compared with cold press forming.

     

    Applications

    • Automotive body-in-white
    • Automotive superstructure components
    • Precision tubes

    This section is provided in metric units to align with automotive specification formats.

     

    Relationship with standards

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

    Tata Steel Grade

    SAE J2745: 2007

    EN 10338: 2015

    EN 10083: 2009

    DP600

    DP 590T/340Y

    HCT590X

    -

    DP800

    DP 780T/420Y

    HCT780X

    -

    DP1000

    DP 980T/550Y

    HCT980X

    -

    HQ1500

    -

    -

    20MnB5 1

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

    Properties

    Properties

    Mechanical properties

    Cold-rolled dual phase steels have the following mechanical properties.

    SAE J2745

    Yield
    strength 1

    Min.
    tensile strength

    Min. elongation after
    fracture A
    (L0 = 50mm)

    Min.
    n-value
    (A 10 - 20%)2

    Min. BH2

    Grade

    N/mm²

    N/mm²

    %

     

    N/mm²

    DP 590T/340Y

    340 - 440

    590

    21

    0.14

    30

    DP 780T/420Y

    420 - 550

    780

    15

    0.11

    30

    DP 980T/550Y

    550 - 730

    980

    8

    -

    30

    1. Yield strength refers to the 0.2% proof strength for the product.
    2. If maximum uniform elongation is less than 20%, then n-value shall be measured from 10% to end of uniform elongation.
    Test direction shall be shall be either longitudinal or transverse, but not both, as agreed upon between customer and supplier.
    In the absence of an agreement, the longitudinal direction shall be used.

     

     Our cold-rolled ultra high-strength boron steel has the following mechanical properties.

     

    As delivered

    Tata Steel

    Yield
    strength 1
    ReL

    Tensile strength
    Rm

    Elongation after fracture A (L0 = 80mm)

    n-value

    r-value

    Grade

    N/mm²

    N/mm²

    %

     

     

    HQ1500 - Guaranteed

    ≥ 300

    500 - 580

    ≥ 20

    -

    -

    HQ1500 - Typical

    340 - 440

    500 - 580

    > 21

    > 0.150

    0.90 - 1.0

     

     

     

    Hot formed

    Tata Steel

    Yield strength 1 ReL

    Tensile strength Rm

    Elongation
    after fraction A
    (L0 = 50mm)

    Grade

    N/mm²

    N/mm²

    %

    HQ1500 - Guaranteed

    1000 - 1250

    1300 - 1600

    ≥ 5

    HQ1500 - Typical

    1025 - 1100

    1420 - 1520

     ≥ 5

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

     

    Chemical composition

    Cold-rolled advanced high-strength steels supplied by Tata Steel comply to the following heat analysis with maximum values in weight percentages:

    SAE J2745

    C

    Si

    Mn

    P

    S

    Altot

    Cr + Mo 1

    Nb + Ti 2

    V

    B

    Grade

    Max.

    Max.

    Max.

    Max.

    Max.

     

    Max.

    Max.

    Max.

    Max.

    DP 590T/340Y

    0.17

    0.80

    2.20

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

    DP 780T/420Y

    0.18

    0.80

    3.00

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

    DP 980T/550Y

    0.23

    0.80

    3.00

    0.080

    0.015

    ≤ 2.00

    1.00

    0.15

    0.20

    0.005

     

     

     

     

     

     

     

     

     

     

     

    HQ1500 - Guaranteed

    0.23

    0.3

    1.3

    0.02

    0.010

    0.02 - 0.06

    0.3

    0.04

    -

    0.005

    HQ1500 – Typical

    0.22

    0.24

    1.2

    0.01

    0.005

    0.04

    0.2

    0.03

    -

    0.003

    1. Refers to Cr max for HQ1500.
    2. Refers to Ti max for HQ1500.

    Dimensions

    Dimensions

    Order volumes may apply to some dimensions - please contact us.
    For continuously annealed (CA) Products.
    Dimensions in mm.

    Thickness

    Max width

    From - up to

    DP 590T/340Y1

    DP 780T/420Y2

    DP 980T/550Y3

    HQ1500

    0.70 - 0.80 1, 2

    -

    -

    -

    -

    0.80 - 0.90

    1450

    1260

    -

    1150

    0.90 - 1.00

    1450

    1260

    -

    1150

    1.00 - 1.20

    1450

    1260

    1240

    1150

    1.20 - 1.40

    1450

    1260

    1275

    1300

    1.40 - 1.60

    1468

    1415

    1275

    1300

    1.60 - 1.80

    1468

    1415

    -

    1300

    1.80 - 2.00

    1468

    1415

    -

    -

    1. DP 590T/340Y thicknesses from 0.7mm up to 0.8mm for widths up to 1500mm are under development.
    2. DP 780T/420Y thicknesses from 0.7mm up to 0.8mm for widths up to 1475mm are under development.
    3. DP 980T/550Y thicknesses from 0.8mm up to 1.0mm for widths up to 1520mm are under development.
    Please contact us for latest availability.
    Minimum width is 900mm for all grades.