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  • Hot-rolled - Advanced and ultra high-strength steel (US Standard units)

    Tata Steel’s range of versatile and advanced and ultra high-strength steels has been developed primarily to meet the needs of the automotive industry – increasing strength or reducing weight to help achieve optimal performance parameters.

    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

    Use of our steels allows increased performance of finished components through using steel with an increased strength. Alternatively, we can help reduce the component weight using steel with a lower thickness without compromising performance. This can increase your output per tonne of steel. Our hot-rolled advanced high-strength steels include ferrite-bainite and hot forming steel grades.
     

    Ferrite-bainite - FB590

    Hot-rolled FB590 is a ferrite-bainite advanced high-strength steel offering excellent ductility and formability.

    It is particularly suited to automotive chassis and suspension applications where a combination of superior strength and fatigue performance is required on relatively complex shaped parts.

    FB590 offers a high hole expansion coefficient and high tensile strength – ideal for components with a significant amount of edge stretching. The tensile strength levels deliver excellent fatigue resistance as an additional benefit.

     

    Hot forming steel - HQ1500

    Our die quenched hot forming steel HQ1500 is a hot-rolled ultra high-strength steel. It enables an excellent degree of shape accuracy and mechanical performance. Its ultra high strength delivers significant benefits– especially when it comes to weight saving. By switching to HQ1500 from high-strength low-alloy or dual phase steels, designers can reduce the material gauge - creating stronger, lighter structures.

    We can supply our hot forming steel in either an ‘as rolled’ dry condition or pickled and oiled. The ‘as rolled’ condition is suitable for forming both prior to or during heat and quenching treatments. The steel’s hardness properties after heat treatment make it highly suitable for applications requiring high wear resistance.

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

     

    Applications

    • Automotive components

     

    Relationship with standards

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

    Tata Steel

    prEN 10338: 2009

    10083-3:2006

    SAE J 2745-2007

    FB590

    HDT580F

    -

    -

    HQ1500

    -

    20MnB5 1

    -

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

     

    Properties

    Mechanical properties

     

     

    The values shown for the mechanical properties of FB590 are for test pieces taken parallel to the rolling direction. 

    Grade

    Yield strength 1

    Tensile strength

    Elongation after
    fracture A (%)

     

    N/mm²

    N/mm²

    (L0 = 80 mm)

    FB590 - Guaranteed

    440 - 600

    ≥ 580

    > 15

    FB590 - Typical

    490

    595

    20

     

    530 2

    600 2

    18 2

    1. Lower yield strength or 0.2% proof stress applies. 
    2. These mechanical property values are quoted for the transverse rolling direction.

    Hole expansion coefficient values can be supplied (although not as part of the production release test) – please contact us.

     

    The mechanical properties of uncoated HQ1500 before and after hot forming are shown below in the table.
    Values are for test pieces taken parallel to the rolling direction.

     

    As delivered

     

     

     

     

    Grade

    Yield strength 1

    Tensile strength

    Elongation after
    fracture A (%)

    n-value

    r-value

     

    N/mm²

    N/mm²

    (L0 = 80 mm)

     

     

    HQ1500 - Guaranteed

    ≥ 320

    ≥ 500

    ≥ 15

     

     

    HQ1500 - Typical

    350 - 450

    520 - 650

    > 17

    ≥ 0.150

    0.90 - 1.0

     

     

    Hot formed

     

     

    Grade

    Yield strength 1

    Tensile strength

    Elongation after fracture A (%)

     

    N/mm²

    N/mm²

    (L0 = 50 mm)

    HQ1500 - Guaranteed

    1000 - 1250

    1300 - 1600

    ≥ 5

    HQ1500 - Typical

    1023 - 1105

    1420 - 1520

    5-7

    1. Lower yield strength or 0.2% proof stress applies

     

    Chemical composition

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

     

    C

    Mn

    Si

    P

    S

    Altot

    Cr+Mo

    Cb+Ti

    V

    B

    Grade

    Max.

    Max.

    Max.

    Max.

    Max.

     

    Max. 1

    Max. 2

    Max.

    Max.

    FB590 Guaranteed

    0.18

    2.0

    0.5

    0.05

    0.01

    0.015-2.0

    1

    0.15

    0.15

    0.01

    FB590 typical

    0.085

    1.4

    0.25

    0.018

    0.003

    0.015-2.0

    0.05

    0.05

    0.001

    0.001

    HQ1500

    0.20-0.23

    1.1-1.3

    0.2-0.3

    0.025

    0.01

    0.02-0.06

    0.1-0.3

    0.02-0.04

     

    0.002-0.005

    HQ1500 typical

    0.22

    1.2

    0.24

    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 in inch. 

    Thickness

    Max. width 

     

    From - up to

    FB590

    HQ1500

    1.80 - 2.00

    -

    1150

    2.00 - 2.50

    -

    1300

    2.50 - 3.00

    1300

    1300

    3.00 - 3.50

    1400

    1300

    3.50 - 4.00

    1400

    1300

    4.00 - 4.50

    1400

    1300

    4.50 - 5.00

    1400

    -

    Minimum width is 900mm.

     

    Tolerances on thickness

    Tolerances for wide strip and slit wide strip comply with standard ASTM A568: 2007 and A635: 2007 (click here).
    Tighter tolerances are available, please contact us. Tolerances are over, no under.

     

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    Overview

    Overview

    Use of our steels allows increased performance of finished components through using steel with an increased strength. Alternatively, we can help reduce the component weight using steel with a lower thickness without compromising performance. This can increase your output per tonne of steel. Our hot-rolled advanced high-strength steels include ferrite-bainite and hot forming steel grades.
     

    Ferrite-bainite - FB590

    Hot-rolled FB590 is a ferrite-bainite advanced high-strength steel offering excellent ductility and formability.

    It is particularly suited to automotive chassis and suspension applications where a combination of superior strength and fatigue performance is required on relatively complex shaped parts.

    FB590 offers a high hole expansion coefficient and high tensile strength – ideal for components with a significant amount of edge stretching. The tensile strength levels deliver excellent fatigue resistance as an additional benefit.

     

    Hot forming steel - HQ1500

    Our die quenched hot forming steel HQ1500 is a hot-rolled ultra high-strength steel. It enables an excellent degree of shape accuracy and mechanical performance. Its ultra high strength delivers significant benefits– especially when it comes to weight saving. By switching to HQ1500 from high-strength low-alloy or dual phase steels, designers can reduce the material gauge - creating stronger, lighter structures.

    We can supply our hot forming steel in either an ‘as rolled’ dry condition or pickled and oiled. The ‘as rolled’ condition is suitable for forming both prior to or during heat and quenching treatments. The steel’s hardness properties after heat treatment make it highly suitable for applications requiring high wear resistance.

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

     

    Applications

    • Automotive components

     

    Relationship with standards

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

    Tata Steel

    prEN 10338: 2009

    10083-3:2006

    SAE J 2745-2007

    FB590

    HDT580F

    -

    -

    HQ1500

    -

    20MnB5 1

    -

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

     

    Properties

    Properties

    Mechanical properties

     

     

    The values shown for the mechanical properties of FB590 are for test pieces taken parallel to the rolling direction. 

    Grade

    Yield strength 1

    Tensile strength

    Elongation after
    fracture A (%)

     

    N/mm²

    N/mm²

    (L0 = 80 mm)

    FB590 - Guaranteed

    440 - 600

    ≥ 580

    > 15

    FB590 - Typical

    490

    595

    20

     

    530 2

    600 2

    18 2

    1. Lower yield strength or 0.2% proof stress applies. 
    2. These mechanical property values are quoted for the transverse rolling direction.

    Hole expansion coefficient values can be supplied (although not as part of the production release test) – please contact us.

     

    The mechanical properties of uncoated HQ1500 before and after hot forming are shown below in the table.
    Values are for test pieces taken parallel to the rolling direction.

     

    As delivered

     

     

     

     

    Grade

    Yield strength 1

    Tensile strength

    Elongation after
    fracture A (%)

    n-value

    r-value

     

    N/mm²

    N/mm²

    (L0 = 80 mm)

     

     

    HQ1500 - Guaranteed

    ≥ 320

    ≥ 500

    ≥ 15

     

     

    HQ1500 - Typical

    350 - 450

    520 - 650

    > 17

    ≥ 0.150

    0.90 - 1.0

     

     

    Hot formed

     

     

    Grade

    Yield strength 1

    Tensile strength

    Elongation after fracture A (%)

     

    N/mm²

    N/mm²

    (L0 = 50 mm)

    HQ1500 - Guaranteed

    1000 - 1250

    1300 - 1600

    ≥ 5

    HQ1500 - Typical

    1023 - 1105

    1420 - 1520

    5-7

    1. Lower yield strength or 0.2% proof stress applies

     

    Chemical composition

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

     

    C

    Mn

    Si

    P

    S

    Altot

    Cr+Mo

    Cb+Ti

    V

    B

    Grade

    Max.

    Max.

    Max.

    Max.

    Max.

     

    Max. 1

    Max. 2

    Max.

    Max.

    FB590 Guaranteed

    0.18

    2.0

    0.5

    0.05

    0.01

    0.015-2.0

    1

    0.15

    0.15

    0.01

    FB590 typical

    0.085

    1.4

    0.25

    0.018

    0.003

    0.015-2.0

    0.05

    0.05

    0.001

    0.001

    HQ1500

    0.20-0.23

    1.1-1.3

    0.2-0.3

    0.025

    0.01

    0.02-0.06

    0.1-0.3

    0.02-0.04

     

    0.002-0.005

    HQ1500 typical

    0.22

    1.2

    0.24

    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

    Dimensions in inch. 

    Thickness

    Max. width 

     

    From - up to

    FB590

    HQ1500

    1.80 - 2.00

    -

    1150

    2.00 - 2.50

    -

    1300

    2.50 - 3.00

    1300

    1300

    3.00 - 3.50

    1400

    1300

    3.50 - 4.00

    1400

    1300

    4.00 - 4.50

    1400

    1300

    4.50 - 5.00

    1400

    -

    Minimum width is 900mm.

     

    Tolerances on thickness

    Tolerances for wide strip and slit wide strip comply with standard ASTM A568: 2007 and A635: 2007 (click here).
    Tighter tolerances are available, please contact us. Tolerances are over, no under.

     

    back to top