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  • Cold-rolled - High-strength steel (US Standard units)

    Tata Steel offers a range of steels for applications requiring high strength without the weight penalty.

    The range comprises microalloyed, rephosphorized and carbon manganese high-strength steels in cold-rolled uncoated condition.

     

    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

    These steels are ideal for manufacturing strong, thin gauge products. Our high-strength steels are a popular choice in the automotive industry where they deliver benefits including dent-resistance, crash-resistance, formability and good weldability.

    Microalloyed grades

    Microalloyed grades have high-strength levels through precipitation and grain refinement hardening. Careful use of alloying elements ensures high mechanical resistance and good weldability. There is limited scope for cold forming.

    Tata Steel supplies high-strength microalloyed (HSLA) steel which complies with ASTM standard A1008: 2013.

    Rephosphorized grades

    These grades deliver high mechanical resistance and good suitability for cold forming due to solid solution hardening by phosphorus. Our rephosphorized grades are highly suited to the manufacture of car body panels and structural components because of their good resistance to impact and fatigue.

    Carbon manganese grades

    Our carbon manganese product combines high strength with excellent formability for the most difficult cold-forming applications.

    Applications

    • Automotive parts
    • Construction parts
    • Furniture
    • Precision tubes

    Relationship with standards

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

    ASTM A1008: 2013

    HSLAS Grade

    HSLAS Grade 45 class 1

    HSLAS Grade 45 class 2

    HSLAS Grade 50 class 1

    HSLAS Grade 50 class 2

    HSLAS Grade 55 class 2

    HSLAS-F Grade 50

     Please contact us for information on our range of rephosphorized and carbon managenese grades.

    Properties

    Mechanical properties

    The available grades have the following mechanical properties measured parallel to the rolling direction (longitudinal test pieces):

    ASTM A1008: 2013

    Min. yield
    strength

    Min. tensile strength

    Min. elongation
    2 inch

    HSLAS Grade

    ksi

    ksi

    %

    HSLAS Grade 45 class 1

    45

    60

    22

    HSLAS Grade 45 class 2

    45

    55

    22

    HSLAS Grade 50 class 1

    50

    65

    20

    HSLAS Grade 50 class 2

    50

    60

    20

    HSLAS Grade 55 class 2

    55

    65

    18

    HSLAS-F Grade 50

    50

    60

    22

     

    Chemical composition

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

    Microalloyed grades

    ASTM A1008: 2013

    C

    Mn

    P

    S

    Cu

    Ni

    Cr

    Mo 1

    V 1

    Cb 1

    Ti 1

    Grade

    Max.

    Max.

    Max.

    Max.

    Max.

    Max.

    Max.

    Max.

    Min.

    Min.

    Min.

    HSLAS Grade 45 class 1

    0.22

    1.65

    0.04

    0.04

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    HSLAS Grade 45 class 2

    0.15

    1.65

    0.04

    0.04

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    HSLAS Grade 50 class 1

    0.23

    1.65

    0.04

    0.04

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    HSLAS Grade 50 class 2

    0.15

    1.65

    0.04

    0.04

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    HSLAS Grade 55 class 2

    0.15

    1.65

    0.04

    0.04

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    HSLAS-F Grade 50

    0.15

    1.65

    0.020

    0.025

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    1. singly or in combination.

     

    Dimensions

    For continuously annealed (CA) products.
    Dimensions in inches.

    Thickness

    Max. width

    From - up to

    HSLAS Grade 45
    class 1, class 2

    HSLAS Grade 50
    class 1, class 2

    HSLAS-F Grade 50

    0.024 - 0.035

    53

    49

    49

    0.035 - 0.037

    53

    51

    51

    0.037 - 0.040

    60

    52

    52

    0.040 - 0.050

    60

    54

    54

    0.050 - 0.059

    60

    55

    55

    0.059 - 0.073

    57

    55

    55

    0.073 - 0.079

    57

    57

    57

    Please consult us for dimensional availability of HSLA Grade 55 class 2
    Minimum width is 36 inch.

    Tolerances on thickness

    Tolerances comply with standard ASTM A 568: 2011. (click here) - excluding 1 inch minimum edge distance.

    Tighter tolerances are available, please contact us.

     

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    Overview

    Overview

    These steels are ideal for manufacturing strong, thin gauge products. Our high-strength steels are a popular choice in the automotive industry where they deliver benefits including dent-resistance, crash-resistance, formability and good weldability.

    Microalloyed grades

    Microalloyed grades have high-strength levels through precipitation and grain refinement hardening. Careful use of alloying elements ensures high mechanical resistance and good weldability. There is limited scope for cold forming.

    Tata Steel supplies high-strength microalloyed (HSLA) steel which complies with ASTM standard A1008: 2013.

    Rephosphorized grades

    These grades deliver high mechanical resistance and good suitability for cold forming due to solid solution hardening by phosphorus. Our rephosphorized grades are highly suited to the manufacture of car body panels and structural components because of their good resistance to impact and fatigue.

    Carbon manganese grades

    Our carbon manganese product combines high strength with excellent formability for the most difficult cold-forming applications.

    Applications

    • Automotive parts
    • Construction parts
    • Furniture
    • Precision tubes

    Relationship with standards

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

    ASTM A1008: 2013

    HSLAS Grade

    HSLAS Grade 45 class 1

    HSLAS Grade 45 class 2

    HSLAS Grade 50 class 1

    HSLAS Grade 50 class 2

    HSLAS Grade 55 class 2

    HSLAS-F Grade 50

     Please contact us for information on our range of rephosphorized and carbon managenese grades.

    Properties

    Properties

    Mechanical properties

    The available grades have the following mechanical properties measured parallel to the rolling direction (longitudinal test pieces):

    ASTM A1008: 2013

    Min. yield
    strength

    Min. tensile strength

    Min. elongation
    2 inch

    HSLAS Grade

    ksi

    ksi

    %

    HSLAS Grade 45 class 1

    45

    60

    22

    HSLAS Grade 45 class 2

    45

    55

    22

    HSLAS Grade 50 class 1

    50

    65

    20

    HSLAS Grade 50 class 2

    50

    60

    20

    HSLAS Grade 55 class 2

    55

    65

    18

    HSLAS-F Grade 50

    50

    60

    22

     

    Chemical composition

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

    Microalloyed grades

    ASTM A1008: 2013

    C

    Mn

    P

    S

    Cu

    Ni

    Cr

    Mo 1

    V 1

    Cb 1

    Ti 1

    Grade

    Max.

    Max.

    Max.

    Max.

    Max.

    Max.

    Max.

    Max.

    Min.

    Min.

    Min.

    HSLAS Grade 45 class 1

    0.22

    1.65

    0.04

    0.04

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    HSLAS Grade 45 class 2

    0.15

    1.65

    0.04

    0.04

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    HSLAS Grade 50 class 1

    0.23

    1.65

    0.04

    0.04

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    HSLAS Grade 50 class 2

    0.15

    1.65

    0.04

    0.04

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    HSLAS Grade 55 class 2

    0.15

    1.65

    0.04

    0.04

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    HSLAS-F Grade 50

    0.15

    1.65

    0.020

    0.025

    0.20

    0.20

    0.15

    0.06

    0.005

    0.005

    0.005

    1. singly or in combination.

     

    Dimensions

    Dimensions

    For continuously annealed (CA) products.
    Dimensions in inches.

    Thickness

    Max. width

    From - up to

    HSLAS Grade 45
    class 1, class 2

    HSLAS Grade 50
    class 1, class 2

    HSLAS-F Grade 50

    0.024 - 0.035

    53

    49

    49

    0.035 - 0.037

    53

    51

    51

    0.037 - 0.040

    60

    52

    52

    0.040 - 0.050

    60

    54

    54

    0.050 - 0.059

    60

    55

    55

    0.059 - 0.073

    57

    55

    55

    0.073 - 0.079

    57

    57

    57

    Please consult us for dimensional availability of HSLA Grade 55 class 2
    Minimum width is 36 inch.

    Tolerances on thickness

    Tolerances comply with standard ASTM A 568: 2011. (click here) - excluding 1 inch minimum edge distance.

    Tighter tolerances are available, please contact us.

     

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