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  • Automotive - Hot-rolled - Advanced and ultra high-strength steel

    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.

    • Ferrite-bainite – HR FB590-UC

      HR FB590-UC is a ferrite-bainite advanced high-strength steel offering excellent formability characteristics.

      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.

       

    • Complex phase – HR CP800-UC

      HR CP800-UC is a complex phase advanced high-strength steel featuring a very fine-grained bainitic matrix microstructure combined with a small fraction of ferrite and martensite phases.

      It enables the design of relatively complex-shaped components requiring high strength and fatigue performance to be manufactured by cold stamping or roll forming.

    • Hot forming steel – HR HQ1500-UC

      Our die-quenched hot forming steel HR HQ1500-UC 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.

    Contact us

    Tata Steel

    Automotive

    PO Box 10.000, 7H-04

    1970 CA IJmuiden

    The Netherlands

    T +31 (0) 251 495748

    Overview

     

    Applications

    • upper and lower control arms
    • engine sub-frames
    • other chassis and suspension components
    • twist beam rear axles
    • wheels

    Strength and ductility

    Utilising the superior combination of strength and ductility of Tata Steel’s advanced steel portfolio can yield significant lightweighting potential. Component shapes which were previously considered too challenging to make, are now a possibility. This enables designers to integrate high strength and durable materials into their designs to fully unlock the potential of steel.

    Increased performance

    Application of our advanced steel grades – in place of lower strength, conventional steel grades - can lead to the increased performance of finished components.

    Weight reduction

    Application of our advanced steel with a lower thickness - in comparison with lower strength, conventional steel grades - can help reduce component weight without compromising performance. This can increase your output per tonne of steel.

    Product choice

    Our hot-rolled advanced and ultra high-strength steels include ferrite-bainite, complex phase and hot forming steel grades.

     

    Ferrite-bainite – HR FB590-UC

    HR FB590-UC is a ferrite-bainite advanced high-strength steel offering excellent formability characteristics. 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. HR FB590-UC offers a high hole expansion capacity (HEC) 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.

    HR XPF800-UC

    HR XPF800-UC combinines high strength with good fatigue resistance, outperforming HSLA and multiphase products of equivalent strength levels, due to it outstanding hole expansion capacity (HEC), averaging 90%, and a far superior minimum elongation of 14%.

    Complex phase – HR CP800-UC

    HR CP800-UC is a complex phase advanced high-strength steel featuring a very fine-grained bainitic matrix microstructure combined with a small fraction of ferrite and martensite phases. This microstructure results in a strength of at least 780MPa combined with an optimal balance between hole expansion capacity (HEC) and material elongation. The balance enables the design of relatively complex-shaped components requiring high strength and fatigue performance to be manufactured by cold stamping or roll forming.

    Hot forming steel – HR HQ1500-UC

    Our die-quenched hot forming steel HR HQ1500-UC 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 HR HQ1500-UC 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’ non-pickled 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.

     

    Relationship with standards

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

    Tata Steel VDA prEN 10338: 2009 EN 10083-3:2006
    HR FB590-UC HR440Y580T-FB HDT580F -
    HR XPF800-UC - - -
    HR CP800-UC HR660Y780T-CP HDT800C -
    HR HQ1500-UC - - 20MnB5 1

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

     

     

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    Properties

     

    Mechanical properties

     

    HR FB590-UC

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

    Grade Yield  Tensile  Elongation after fracture A
      strength 1 strength   
      Rp0,2 Rm (L0 = 80mm)
    EN10338: HDT580F 440 - 600 ≥ 580 > 15
    HR FB590-UC - 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 for details.

    HR XPF800-UC

    Grade Standard Test Yield strength Tensile strength  A80 A50
        direction Rp  (Mpa) Rm  (Mpa) % %
              ≤ 3mm >3mm
    HR XPF800-UC - Guaranteed Tata Steel L 680 - 820 780 - 920 ≥ 14 ≥ 16
    HR XPF800-UC - Typical Tata Steel L 730 820 16 18
    T 760 840 14 15
    HR660Y760T-CP VDA L 660-820 760 - 960 10 11

    HEC values : average 90% (min. 70% - between 2.5mm/4.5mm)

     

    HR CP800-UC

    The mechanical properties of HR CP800-UC are shown below in the table. Values are for test pieces taken parallel to the rolling direction unless otherwise stated.

    Grade Yield strength 1 Tensile strength Elongation after fracture A Elongation after fracture A Elongation after fracture A
    ReL  Rm (L0 = 50mm) (L0 = 5mm) (L0 = 80mm)
    HR660Y760T-CP
    (VDA239-100)
    660-820
    760-960
    ≥11
    ≥13
    ≥10
    HDT780C
    (prEN 10338)
    660-830
    ≥760
    -
    ≥12
    ≥10
    HR CP800-UC - Typical
    700
    790
    16
    17
    14

     

    HR HQ1500-UC

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

    Grade As delivered        
      Yield  Tensile strength  Elongation after fracture A n-value r-value
      strength  Rm      
      ReL   (L0 = 80mm)    
      N/mm² N/mm² %    
    HR HQ1500-UC - Guaranteed ≥320 ≥500 ≥15    
    HR HQ1500-UC - Typical 350 - 450 520 - 650 >17 ≥0.150 0.90 - 1.0

     

    Grade Hot formed    
      Yield  Tensile strength Elongation after fracture A
      strength1  Rm  
      ReL   (L0 = 50mm)
      N/mm² N/mm² %
    HR HQ1500-UC - Guaranteed 1000 - 1250 1300 - 1600 ≥5
    HR HQ1500-UC - Typical 1023 - 1105 1420 - 1520 5 - 7

    1. Lower yield strength or 0.2% proof stress applies.

     

    Chemical composition

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

      C Mn Si P S Al Cr+Mo Nb+Ti V B
    Grade Max. Max. Max. Max. Max. Max. Max. 1 Max. 2 Max. Max.
    EN10338: HDT580F 0.18 0.5 2 0.05 0.01 0.015 - 2.0 1 0.15 0.15 0.01
    HR FB590-UC 0.085 0.25 1.4 0.018 0.003 0.04 0.05 0.05 0.001 0.001
    HR XPF800-UC
    0.08 1.7 0.5 0.02

    0.005

    0.015 0.3 0.2 0.3 0.008
    HR CP800-UC - Typical
    0.18 2.5 1 0.08 0.015 0.015 - 1.2 1 0.25 - 0.005
    HR HQ1500-UC 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
    HR HQ1500-UC  - Typical 0.22 1.2 0.24 0.01 0.005 0.04 0.2 0.03 0.003
    EN 10083-3:2006 20MnB5 0.17 - 0.23 1.1 - 1.4 0.4 0.025 0.035 - - - - 0.0008 - 0.005

    1. Refers to Cr max. for HQ1500.  Refers to Mo max. for XPF800
    2. Refers to Ti max. for HQ1500

     

     

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    Dimensions

    HR CP800-UC is available in pickled condition.
    HR FB590-UC and HR HQ1500-UC are available in pickled and non-pickled condition.

    Dimensions in mm.

    Thickness Max. width       
    From - up to HR FB590-UC 2 HR XPF800-UC 1 HR CP800-UC 1 HR HQ1500-UC 2
    1.80 - 2.00 -

    14003

    - 1150
    2.00 - 2.50 - 14003  - 1300
    2.50 - 3.00 1300 1700 1450 1300
    3.00 - 3.50 1400 1700 1505 1300
    3.50 - 4.00 1400 1700 1560 1300
    4.00 - 4.10 1400 1700 1571 1300
    4.10 - 4.30 1400 1700 1650 1300
    4.30 - 4.50 1400 1700 1583 1300
    4.50 - 4.70 1400 19503 1450 -
    4.70 - 5.00 1400 19503 - -
    5.00 - 6.00 - 19503 - -

    1. HR XPF800 and HR CP800-UC minimum width is 1000mm.
    2. HR FB590-UC and HR HQ1500-UC minimum width is 900mm.
    3. Dimensional capability under development.

     

    Tolerances

    Tolerances for wide strip and slit wide strip comply with standard EN 10051:2010 (click here).
    Tighter tolerances are available, please contact us.

     

     

    back to top

     

     

    Overview

    Overview

     

    Applications

    • upper and lower control arms
    • engine sub-frames
    • other chassis and suspension components
    • twist beam rear axles
    • wheels

    Strength and ductility

    Utilising the superior combination of strength and ductility of Tata Steel’s advanced steel portfolio can yield significant lightweighting potential. Component shapes which were previously considered too challenging to make, are now a possibility. This enables designers to integrate high strength and durable materials into their designs to fully unlock the potential of steel.

    Increased performance

    Application of our advanced steel grades – in place of lower strength, conventional steel grades - can lead to the increased performance of finished components.

    Weight reduction

    Application of our advanced steel with a lower thickness - in comparison with lower strength, conventional steel grades - can help reduce component weight without compromising performance. This can increase your output per tonne of steel.

    Product choice

    Our hot-rolled advanced and ultra high-strength steels include ferrite-bainite, complex phase and hot forming steel grades.

     

    Ferrite-bainite – HR FB590-UC

    HR FB590-UC is a ferrite-bainite advanced high-strength steel offering excellent formability characteristics. 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. HR FB590-UC offers a high hole expansion capacity (HEC) 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.

    HR XPF800-UC

    HR XPF800-UC combinines high strength with good fatigue resistance, outperforming HSLA and multiphase products of equivalent strength levels, due to it outstanding hole expansion capacity (HEC), averaging 90%, and a far superior minimum elongation of 14%.

    Complex phase – HR CP800-UC

    HR CP800-UC is a complex phase advanced high-strength steel featuring a very fine-grained bainitic matrix microstructure combined with a small fraction of ferrite and martensite phases. This microstructure results in a strength of at least 780MPa combined with an optimal balance between hole expansion capacity (HEC) and material elongation. The balance enables the design of relatively complex-shaped components requiring high strength and fatigue performance to be manufactured by cold stamping or roll forming.

    Hot forming steel – HR HQ1500-UC

    Our die-quenched hot forming steel HR HQ1500-UC 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 HR HQ1500-UC 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’ non-pickled 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.

     

    Relationship with standards

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

    Tata Steel VDA prEN 10338: 2009 EN 10083-3:2006
    HR FB590-UC HR440Y580T-FB HDT580F -
    HR XPF800-UC - - -
    HR CP800-UC HR660Y780T-CP HDT800C -
    HR HQ1500-UC - - 20MnB5 1

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

     

     

    back to top

    Properties

    Properties

     

    Mechanical properties

     

    HR FB590-UC

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

    Grade Yield  Tensile  Elongation after fracture A
      strength 1 strength   
      Rp0,2 Rm (L0 = 80mm)
    EN10338: HDT580F 440 - 600 ≥ 580 > 15
    HR FB590-UC - 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 for details.

    HR XPF800-UC

    Grade Standard Test Yield strength Tensile strength  A80 A50
        direction Rp  (Mpa) Rm  (Mpa) % %
              ≤ 3mm >3mm
    HR XPF800-UC - Guaranteed Tata Steel L 680 - 820 780 - 920 ≥ 14 ≥ 16
    HR XPF800-UC - Typical Tata Steel L 730 820 16 18
    T 760 840 14 15
    HR660Y760T-CP VDA L 660-820 760 - 960 10 11

    HEC values : average 90% (min. 70% - between 2.5mm/4.5mm)

     

    HR CP800-UC

    The mechanical properties of HR CP800-UC are shown below in the table. Values are for test pieces taken parallel to the rolling direction unless otherwise stated.

    Grade Yield strength 1 Tensile strength Elongation after fracture A Elongation after fracture A Elongation after fracture A
    ReL  Rm (L0 = 50mm) (L0 = 5mm) (L0 = 80mm)
    HR660Y760T-CP
    (VDA239-100)
    660-820
    760-960
    ≥11
    ≥13
    ≥10
    HDT780C
    (prEN 10338)
    660-830
    ≥760
    -
    ≥12
    ≥10
    HR CP800-UC - Typical
    700
    790
    16
    17
    14

     

    HR HQ1500-UC

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

    Grade As delivered        
      Yield  Tensile strength  Elongation after fracture A n-value r-value
      strength  Rm      
      ReL   (L0 = 80mm)    
      N/mm² N/mm² %    
    HR HQ1500-UC - Guaranteed ≥320 ≥500 ≥15    
    HR HQ1500-UC - Typical 350 - 450 520 - 650 >17 ≥0.150 0.90 - 1.0

     

    Grade Hot formed    
      Yield  Tensile strength Elongation after fracture A
      strength1  Rm  
      ReL   (L0 = 50mm)
      N/mm² N/mm² %
    HR HQ1500-UC - Guaranteed 1000 - 1250 1300 - 1600 ≥5
    HR HQ1500-UC - Typical 1023 - 1105 1420 - 1520 5 - 7

    1. Lower yield strength or 0.2% proof stress applies.

     

    Chemical composition

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

      C Mn Si P S Al Cr+Mo Nb+Ti V B
    Grade Max. Max. Max. Max. Max. Max. Max. 1 Max. 2 Max. Max.
    EN10338: HDT580F 0.18 0.5 2 0.05 0.01 0.015 - 2.0 1 0.15 0.15 0.01
    HR FB590-UC 0.085 0.25 1.4 0.018 0.003 0.04 0.05 0.05 0.001 0.001
    HR XPF800-UC
    0.08 1.7 0.5 0.02

    0.005

    0.015 0.3 0.2 0.3 0.008
    HR CP800-UC - Typical
    0.18 2.5 1 0.08 0.015 0.015 - 1.2 1 0.25 - 0.005
    HR HQ1500-UC 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
    HR HQ1500-UC  - Typical 0.22 1.2 0.24 0.01 0.005 0.04 0.2 0.03 0.003
    EN 10083-3:2006 20MnB5 0.17 - 0.23 1.1 - 1.4 0.4 0.025 0.035 - - - - 0.0008 - 0.005

    1. Refers to Cr max. for HQ1500.  Refers to Mo max. for XPF800
    2. Refers to Ti max. for HQ1500

     

     

    back to top

    Dimensions

    Dimensions

    HR CP800-UC is available in pickled condition.
    HR FB590-UC and HR HQ1500-UC are available in pickled and non-pickled condition.

    Dimensions in mm.

    Thickness Max. width       
    From - up to HR FB590-UC 2 HR XPF800-UC 1 HR CP800-UC 1 HR HQ1500-UC 2
    1.80 - 2.00 -

    14003

    - 1150
    2.00 - 2.50 - 14003  - 1300
    2.50 - 3.00 1300 1700 1450 1300
    3.00 - 3.50 1400 1700 1505 1300
    3.50 - 4.00 1400 1700 1560 1300
    4.00 - 4.10 1400 1700 1571 1300
    4.10 - 4.30 1400 1700 1650 1300
    4.30 - 4.50 1400 1700 1583 1300
    4.50 - 4.70 1400 19503 1450 -
    4.70 - 5.00 1400 19503 - -
    5.00 - 6.00 - 19503 - -

    1. HR XPF800 and HR CP800-UC minimum width is 1000mm.
    2. HR FB590-UC and HR HQ1500-UC minimum width is 900mm.
    3. Dimensional capability under development.

     

    Tolerances

    Tolerances for wide strip and slit wide strip comply with standard EN 10051:2010 (click here).
    Tighter tolerances are available, please contact us.

     

     

    back to top