Metallic coated
Steel for forming

Our cold-rolled forming steels are available in a wide range of grades and corrosion-resistant coatings. Each grade is designed for specific applications and comes with a choice of surface quality. Extensive dimensional choice provides opportunities for cutting waste and maximizing yield.

MagiZinc® improves corrosion resistance with half the thickness of conventional zinc coatings, increasing yield, reducing cost and facilitating stronger, lighter products. It offers improved automotive corrosion protection and higher process efficiency.

 

    Hot dip galvanizing line, IJmuiden
    Steel solar frame profile formed using MagiZinc metallic coated steel
    Product specification
    Steel for forming is currently available in the following grades

    EN_US-Engineering-Product-Metallic coated-Forming-CS type

    CS type
    Specification details for CS type

    EN_US-Engineering-Product-Metallic coated-Forming-All Grades Overview

    Overview

    Applications:

    • Automotive components
    • Building components
    • Domestic appliances
    • Electrical goods
    • Tubes and sections

    Relationship with standards

    ASTM A653: 2008 ISO standard 3575 SAE JIS G3302-98
    Designation Name Designation    
    CS type A Commercial, lock forming 01, 02 - SGCC + SGCH
    CS type B Commercial, lock forming 01, 02 - -
    CS type C Commercial, lock forming 01, 02 - -
    FS type A Drawing 3 - -
    FS type B Deep drawing 4 - -
    DDS type A Deep drawing special killed 5 - -
    EDDS Extra deep drawing stabilized 6 - SGCD2

    See dimensional tables for available coating types per grade.

    EN_US-Engineering-Product-Metallic coated-All Grades Surface aspects

    Surface aspects

    Surface Aspects

    Surface quality

    Surface quality complies with ASTM standards A653: 2008 and A924: 2009. The products can be delivered with the following coating/surface types:

    Minimized spangle (standard surface)

    Imperfections such as pimples, marks, scratches, pits, variations in surface appearance, dark spots, stripe marks and light passivation stains are permissible.

    Stretch levelling breaks or run-off marks may appear. Coil breaks and stretcher strains may also appear.

    Minimized spangle temper rolled (improved surface)

    With this surface quality, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

    Extra smooth (best surface, exposed)

    Surface quality is obtained by skin passing. The controlled surface shall make it possible to apply a uniform high-class paint finish. The other surface shall at least have the characteristics of surface quality B. As a rule, the upper side of the strip is inspected; on request the strip can be turned over so that the underside is the inspected side.

    MagiZinc® is currently only available with standard or improved surface qualities.

    Surface roughness

    Metallic coated steel will normally be supplied with a regular matte finish:

    Description Roughness µinch CLA
    regular matte 30 - 61

    Surface treatments

    The surface treatments available are O, C and CO.

    Oiling (O)

    The material surface can be oiled with preservative oil. Other types of oil may be available to meet your requirement – please contact us.

    Tata Steel offers the following range of oiling levels for all coating types:

    Lightly oiled:  55 mg/ft2 per side
    Regular oiled:  110 mg/ft2 per side

    Other oiling levels are available on request. If no amount is indicated in your specification, a regular amount of oil will be applied.

    Chromium-free passivation (C)

    This surface treatment temporarily protects the zinc coated material against white rust during transportation and storage (not applicable to all qualities – please consult us).

    Chromium-free passivation and oiled (CO)

    Please request this combination of surface treatments if you require extra protection against white rust formation (not applicable to all qualities – please consult us).

     

    Please contact us on the availability of other surface treatments.

     

    EN_US-Engineering-Product-Metallic coated-Forming-CS TYPE-Properties

    Properties

    Properties

    Mechanical properties

    Zinc coated steel for forming has the following typical (non mandatory) mechanical properties parallel to the rolling direction:

    ASTM A653: 2008 Designation CS type A CS type B CS type C
    Yield strength ksi 25 - 55 30 - 55 25 - 60
    Elongation 2 inch % ≥ 20 ≥ 20 ≥ 15
    rm - value   - - -
    n - value   - - -


    Chemical composition

    The heat analysis of the base metal confirms to the following maximum composition values (in weight percentage), unless otherwise shown.

      Designation CS type A CS type B CS type C
    C Max. 0.1 0.02 - 0.15 0.08
    Mn Max. 0.6 0.6 0.6
    P Max. 0.03 0.03 0.1
    S Max. 0.035 0.035 0.035
    Al Min. - - -
    V Max. 0.008 0.008 0.008
    Cb Max. 0.008 0.008 0.008
    Ti Max. 0.025 0.025 0.025
    All values are in weight%.
     

     

    EN_US-Engineering-Product-Metallic coated-Forming-CS TYPE-Dimensions

    Dimensions

    Dimensions

    Galvanized dimensional capability.

    Dimensions in inches.

    Thickness Max. width
    From - up to CS Type A
      CS Type B
      CS Type C
    0.014 - 0.016 54
    0.016 - 0.018 60
    0.018 - 0.020 60
    0.020 - 0.024 62
    0.024 - 0.026 69
    0.026 - 0.028 73
    0.028 - 0.030 74
    0.030 - 0.031 78
    0.031 - 0.035 79
    0.035 - 0.040 79
    0.040 - 0.055 79
    0.055 - 0.060 79
    0.060 - 0.065 79
    0.065 - 0.070 78
    0.070 - 0.080 77
    0.080 - 0.090 67
    0.090 - 0.095 64
    0.095 - 0.100 61
    0.100 - 0.110 60
    0.110 - 0.115 60
    The minimum width is 36 inch.
    Please contact us about the availability of lower widths, specific coating weights and surface finishes, as well as the availability of other extra formable grades.

     

    MagiZinc® dimensional capability.

    Dimensions in inches.

    Thickness Max. width
    From - up to CS Type A
      CS Type B
      CS Type C
    0.016 - 0.018 60
    0.018 - 0.020 60
    0.020 - 0.024 60
    0.024 - 0.026 61
    0.026 - 0.028 61
    0.028 - 0.047 61
    0.047 - 0.079 61
    The minimum width is 36 inch.
    Please contact us on the availability of lower widths and thicknesses in the range 0.079 - 0.098.
    Please contact us for details on the availability of other coating types.

    Tolerances on thickness

    The tolerances comply with standard ASTM A924: 2013.
    Tighter tolerances are available on request.

    EN_US-Engineering-Product-Metallic coated-All grades Shape and dimensional tolerances

    Shape and dimensional tolerances

    Shape and dimensional tolerances

    Tolerances on thickness

    The thickness tolerances comply with standard ASTM A924: 2013 – 1 inch minimum edge distance.
    Thickness tolerances over, no tolerance under. Dimensions in inches:

    Specified thickness Normal tolerances for a specified width of
    From - up to 0 - 32 32 - 40 40 - 60 60 - 75
    0.000 - 0.023 0.003 0.003 0.003 0.003
    0.023 - 0.043 0.004 0.004 0.004 0.004
    0.043 - 0.061 0.005 0.005 0.005 0.005
    0.061 - 0.075 0.006 0.006 0.006 0.006
    0.075 - 0.101 0.01 0.012 0.012 0.014
    0.101 - 0.187 0.012 0.012 0.014 0.014

    Around cold-rolled welds an increase of 20 % at the most over the thickness tolerance is allowed over a length of 50 ft.
    Thickness tolerance availability is shown below:

    Thickness tolerance Availability
    Full thickness tolerance Available
    Special thickness tolerance Refer before ordering
    50% of full thickness tolerance Refer before ordering

    Tolerances on width

    The tolerances for width comply with standard ASTM A924: 2013.
    Thickness tolerances over, no tolerance under. Dimensions in inches:

    Specified width Tolerances for a specified width of
    From - up to Mill edge Cut edge
    30 - 48 0.71 0.187
    48 - 60 0.71 0.25
    60 - 75 0.71 0.312

    MagiZinc® is not included in the standard. Tighter tolerances are available on request.

    Dimensions and coil weights

    Description Capabilities
    Inside diameter standard 24 inches, 20 inches on request
    Outside diameter maximum 98 inches and at the most
      10/7 x width
    Coil weight maximum 66.000 lbs.
    PIW: width ≤ 47 868 - 1232 PIW
    PIW: 47 inch < width ≤ 67 inch 868 - 1215 PIW
    PIW: width > 67 inch 616 PIW and 868 - 1215 PIW

    Coating layer

    Coating layer Coating weight total both sides
      oz/ft2
    G30 0.3
    G35 1 0.35
    G40 0.4
    G60 0.6
    G75 1 0.75
    G90 0.9
    G115 1.15

    1. not in ASTM A653: 2008.
    Other coating weights are available. Please contact us to discuss your requirements.

     

    EN_US-Engineering-Product-Metallic coated-Forming-FS type

    FS type
    Specification details for FS type

    EN_US-Engineering-Product-Metallic coated-Forming-All Grades Overview

    Overview

    Applications:

    • Automotive components
    • Building components
    • Domestic appliances
    • Electrical goods
    • Tubes and sections

    Relationship with standards

    ASTM A653: 2008 ISO standard 3575 SAE JIS G3302-98
    Designation Name Designation    
    CS type A Commercial, lock forming 01, 02 - SGCC + SGCH
    CS type B Commercial, lock forming 01, 02 - -
    CS type C Commercial, lock forming 01, 02 - -
    FS type A Drawing 3 - -
    FS type B Deep drawing 4 - -
    DDS type A Deep drawing special killed 5 - -
    EDDS Extra deep drawing stabilized 6 - SGCD2

    See dimensional tables for available coating types per grade.

    EN_US-Engineering-Product-Metallic coated-All Grades Surface aspects

    Surface aspects

    Surface Aspects

    Surface quality

    Surface quality complies with ASTM standards A653: 2008 and A924: 2009. The products can be delivered with the following coating/surface types:

    Minimized spangle (standard surface)

    Imperfections such as pimples, marks, scratches, pits, variations in surface appearance, dark spots, stripe marks and light passivation stains are permissible.

    Stretch levelling breaks or run-off marks may appear. Coil breaks and stretcher strains may also appear.

    Minimized spangle temper rolled (improved surface)

    With this surface quality, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

    Extra smooth (best surface, exposed)

    Surface quality is obtained by skin passing. The controlled surface shall make it possible to apply a uniform high-class paint finish. The other surface shall at least have the characteristics of surface quality B. As a rule, the upper side of the strip is inspected; on request the strip can be turned over so that the underside is the inspected side.

    MagiZinc® is currently only available with standard or improved surface qualities.

    Surface roughness

    Metallic coated steel will normally be supplied with a regular matte finish:

    Description Roughness µinch CLA
    regular matte 30 - 61

    Surface treatments

    The surface treatments available are O, C and CO.

    Oiling (O)

    The material surface can be oiled with preservative oil. Other types of oil may be available to meet your requirement – please contact us.

    Tata Steel offers the following range of oiling levels for all coating types:

    Lightly oiled:  55 mg/ft2 per side
    Regular oiled:  110 mg/ft2 per side

    Other oiling levels are available on request. If no amount is indicated in your specification, a regular amount of oil will be applied.

    Chromium-free passivation (C)

    This surface treatment temporarily protects the zinc coated material against white rust during transportation and storage (not applicable to all qualities – please consult us).

    Chromium-free passivation and oiled (CO)

    Please request this combination of surface treatments if you require extra protection against white rust formation (not applicable to all qualities – please consult us).

     

    Please contact us on the availability of other surface treatments.

     

    EN_US-Engineering-Product-Metallic coated-Forming-FS TYPE-Properties

    Properties

    Properties

    Mechanical properties

    Zinc coated steel for forming has the following typical (non mandatory) mechanical properties parallel to the rolling direction:

    ASTM A653: 2008 Designation FS type A and B
    Yield strength ksi 25 - 45
    Elongation 2 inch % ≥ 26
    rm - value   1.0 - 1.4
    n - value   0.17 - 0.21


    Chemical composition

    The heat analysis of the base metal confirms to the following maximum composition values (in weight percentage), unless otherwise shown.

      Designation FS type A FS type B
    C Max. 0.1 0.02 - 0.10
    Mn Max. 0.5 0.5
    P Max. 0.02 0.02
    S Max. 0.035 0.03
    Al Min. - -
    V Max. 0.008 0.008
    Cb Max. 0.008 0.008
    Ti Max. 0.025 0.025

    All values are in weight%.

    EN_US-Engineering-Product-Metallic coated-Forming-FS TYPE-Dimensions

    Dimensions

    Dimensions

    Galvanized dimensional capability.

    Dimensions in inches.

    Thickness Max. width
    From - up to FS Type A
      FS Type B
    0.014 - 0.016 38
    0.016 - 0.018 60
    0.018 - 0.020 60
    0.020 - 0.024 62
    0.024 - 0.026 69
    0.026 - 0.028 73
    0.028 - 0.030 74
    0.030 - 0.031 78
    0.031 - 0.035 79
    0.035 - 0.040 79
    0.040 - 0.055 79
    0.055 - 0.060 79
    0.060 - 0.065 79
    0.065 - 0.070 78
    0.070 - 0.080 77
    0.080 - 0.090 67
    0.090 - 0.095 64
    0.095 - 0.100 61
    0.100 - 0.110 60
    0.110 - 0.115 60
    The minimum width is 36 inch.
    Please contact us about the availability of lower widths, specific coating weights and surface finishes, as well as the availability of other extra formable grades.

     

    MagiZinc® dimensional capability.

    Dimensions in inches.

    Thickness Max. width
    From - up to FS Type A
      FS TypeB
       
    0.016 - 0.018 60
    0.018 - 0.020 60
    0.020 - 0.024 60
    0.024 - 0.026 61
    0.026 - 0.028 61
    0.028 - 0.047 61
    0.047 - 0.079 61
    The minimum width is 36 inch.
    Please contact us on the availability of lower widths and thicknesses in the range 0.079 - 0.098.
    Please contact us for details on the availability of other coating types.

     

    Tolerances on thickness

    The tolerances comply with standard ASTM A924: 2013.
    Tighter tolerances are available on request.

    EN_US-Engineering-Product-Metallic coated-All grades Shape and dimensional tolerances

    Shape and dimensional tolerances

    Shape and dimensional tolerances

    Tolerances on thickness

    The thickness tolerances comply with standard ASTM A924: 2013 – 1 inch minimum edge distance.
    Thickness tolerances over, no tolerance under. Dimensions in inches:

    Specified thickness Normal tolerances for a specified width of
    From - up to 0 - 32 32 - 40 40 - 60 60 - 75
    0.000 - 0.023 0.003 0.003 0.003 0.003
    0.023 - 0.043 0.004 0.004 0.004 0.004
    0.043 - 0.061 0.005 0.005 0.005 0.005
    0.061 - 0.075 0.006 0.006 0.006 0.006
    0.075 - 0.101 0.01 0.012 0.012 0.014
    0.101 - 0.187 0.012 0.012 0.014 0.014

    Around cold-rolled welds an increase of 20 % at the most over the thickness tolerance is allowed over a length of 50 ft.
    Thickness tolerance availability is shown below:

    Thickness tolerance Availability
    Full thickness tolerance Available
    Special thickness tolerance Refer before ordering
    50% of full thickness tolerance Refer before ordering

    Tolerances on width

    The tolerances for width comply with standard ASTM A924: 2013.
    Thickness tolerances over, no tolerance under. Dimensions in inches:

    Specified width Tolerances for a specified width of
    From - up to Mill edge Cut edge
    30 - 48 0.71 0.187
    48 - 60 0.71 0.25
    60 - 75 0.71 0.312

    MagiZinc® is not included in the standard. Tighter tolerances are available on request.

    Dimensions and coil weights

    Description Capabilities
    Inside diameter standard 24 inches, 20 inches on request
    Outside diameter maximum 98 inches and at the most
      10/7 x width
    Coil weight maximum 66.000 lbs.
    PIW: width ≤ 47 868 - 1232 PIW
    PIW: 47 inch < width ≤ 67 inch 868 - 1215 PIW
    PIW: width > 67 inch 616 PIW and 868 - 1215 PIW

    Coating layer

    Coating layer Coating weight total both sides
      oz/ft2
    G30 0.3
    G35 1 0.35
    G40 0.4
    G60 0.6
    G75 1 0.75
    G90 0.9
    G115 1.15

    1. not in ASTM A653: 2008.
    Other coating weights are available. Please contact us to discuss your requirements.

     

    EN_US-Engineering-Product-Metallic coated-Forming-DDS type

    DDS type
    Specification details for DDS type

    EN_US-Engineering-Product-Metallic coated-Forming-All Grades Overview

    Overview

    Applications:

    • Automotive components
    • Building components
    • Domestic appliances
    • Electrical goods
    • Tubes and sections

    Relationship with standards

    ASTM A653: 2008 ISO standard 3575 SAE JIS G3302-98
    Designation Name Designation    
    CS type A Commercial, lock forming 01, 02 - SGCC + SGCH
    CS type B Commercial, lock forming 01, 02 - -
    CS type C Commercial, lock forming 01, 02 - -
    FS type A Drawing 3 - -
    FS type B Deep drawing 4 - -
    DDS type A Deep drawing special killed 5 - -
    EDDS Extra deep drawing stabilized 6 - SGCD2

    See dimensional tables for available coating types per grade.

    EN_US-Engineering-Product-Metallic coated-All Grades Surface aspects

    Surface aspects

    Surface Aspects

    Surface quality

    Surface quality complies with ASTM standards A653: 2008 and A924: 2009. The products can be delivered with the following coating/surface types:

    Minimized spangle (standard surface)

    Imperfections such as pimples, marks, scratches, pits, variations in surface appearance, dark spots, stripe marks and light passivation stains are permissible.

    Stretch levelling breaks or run-off marks may appear. Coil breaks and stretcher strains may also appear.

    Minimized spangle temper rolled (improved surface)

    With this surface quality, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

    Extra smooth (best surface, exposed)

    Surface quality is obtained by skin passing. The controlled surface shall make it possible to apply a uniform high-class paint finish. The other surface shall at least have the characteristics of surface quality B. As a rule, the upper side of the strip is inspected; on request the strip can be turned over so that the underside is the inspected side.

    MagiZinc® is currently only available with standard or improved surface qualities.

    Surface roughness

    Metallic coated steel will normally be supplied with a regular matte finish:

    Description Roughness µinch CLA
    regular matte 30 - 61

    Surface treatments

    The surface treatments available are O, C and CO.

    Oiling (O)

    The material surface can be oiled with preservative oil. Other types of oil may be available to meet your requirement – please contact us.

    Tata Steel offers the following range of oiling levels for all coating types:

    Lightly oiled:  55 mg/ft2 per side
    Regular oiled:  110 mg/ft2 per side

    Other oiling levels are available on request. If no amount is indicated in your specification, a regular amount of oil will be applied.

    Chromium-free passivation (C)

    This surface treatment temporarily protects the zinc coated material against white rust during transportation and storage (not applicable to all qualities – please consult us).

    Chromium-free passivation and oiled (CO)

    Please request this combination of surface treatments if you require extra protection against white rust formation (not applicable to all qualities – please consult us).

     

    Please contact us on the availability of other surface treatments.

     

    EN_US-Engineering-Product-Metallic coated-Forming-DDS TYPE-Properties

    Properties

    Properties

    Mechanical properties

    Zinc coated steel for forming has the following typical (non mandatory) mechanical properties parallel to the rolling direction:

    ASTM A653: 2008 Designation DDS type A
    Yield strength ksi 20 - 35
    Elongation 2 inch % ≥ 32
    rm - value   1.4 - 1.8
    n - value   0.19 - 0.24


    Chemical composition

    The heat analysis of the base metal confirms to the following maximum composition values (in weight percentage), unless otherwise shown.

      Designation DDS type A
    C Max. 0.06
    Mn Max. 0.5
    P Max. 0.02
    S Max. 0.025
    Al Min. 0.01
    V Max. 0.008
    Cb Max. 0.008
    Ti Max. 0.025

    All values are in weight%.

    EN_US-Engineering-Product-Metallic coated-Forming-DDS TYPE-Dimensions

    Dimensions

    Dimensions

    Galvanized dimensional capability.

    Dimensions in inches.

    Thickness Max. width
    From - up to DDS Type A
    0.014 - 0.016 -
    0.016 - 0.018 -
    0.018 - 0.020 60
    0.020 - 0.024 62
    0.024 - 0.026 69
    0.026 - 0.028 74
    0.028 - 0.030 79
    0.030 - 0.031 79
    0.031 - 0.035 79
    0.035 - 0.040 79
    0.040 - 0.055 79
    0.055 - 0.060 79
    0.060 - 0.065 75
    0.065 - 0.070 66
    0.070 - 0.080 61
    0.080 - 0.090 -
    0.090 - 0.095 -
    0.095 - 0.100 -
    0.100 - 0.110 -
    0.110 - 0.115 -
    The minimum width is 36 inch.
    Please contact us about the availability of lower widths, specific coating weights and surface finishes, as well as the availability of other extra formable grades.

     

    MagiZinc® dimensional capability.

    Dimensions in inches.

    Thickness Max. width
    From - up to DDS Type A
    0.016 - 0.018 -
    0.018 - 0.020 60
    0.020 - 0.024 60
    0.024 - 0.026 61
    0.026 - 0.028 61
    0.028 - 0.047 61
    0.047 - 0.079 -
    The minimum width is 36 inch.
    Please contact us on the availability of lower widths and thicknesses in the range 0.079 - 0.098.
    Please contact us for details on the availability of other coating types.

     

    Tolerances on thickness

    The tolerances comply with standard ASTM A924: 2013.
    Tighter tolerances are available on request.

    EN_US-Engineering-Product-Metallic coated-All grades Shape and dimensional tolerances

    Shape and dimensional tolerances

    Shape and dimensional tolerances

    Tolerances on thickness

    The thickness tolerances comply with standard ASTM A924: 2013 – 1 inch minimum edge distance.
    Thickness tolerances over, no tolerance under. Dimensions in inches:

    Specified thickness Normal tolerances for a specified width of
    From - up to 0 - 32 32 - 40 40 - 60 60 - 75
    0.000 - 0.023 0.003 0.003 0.003 0.003
    0.023 - 0.043 0.004 0.004 0.004 0.004
    0.043 - 0.061 0.005 0.005 0.005 0.005
    0.061 - 0.075 0.006 0.006 0.006 0.006
    0.075 - 0.101 0.01 0.012 0.012 0.014
    0.101 - 0.187 0.012 0.012 0.014 0.014

    Around cold-rolled welds an increase of 20 % at the most over the thickness tolerance is allowed over a length of 50 ft.
    Thickness tolerance availability is shown below:

    Thickness tolerance Availability
    Full thickness tolerance Available
    Special thickness tolerance Refer before ordering
    50% of full thickness tolerance Refer before ordering

    Tolerances on width

    The tolerances for width comply with standard ASTM A924: 2013.
    Thickness tolerances over, no tolerance under. Dimensions in inches:

    Specified width Tolerances for a specified width of
    From - up to Mill edge Cut edge
    30 - 48 0.71 0.187
    48 - 60 0.71 0.25
    60 - 75 0.71 0.312

    MagiZinc® is not included in the standard. Tighter tolerances are available on request.

    Dimensions and coil weights

    Description Capabilities
    Inside diameter standard 24 inches, 20 inches on request
    Outside diameter maximum 98 inches and at the most
      10/7 x width
    Coil weight maximum 66.000 lbs.
    PIW: width ≤ 47 868 - 1232 PIW
    PIW: 47 inch < width ≤ 67 inch 868 - 1215 PIW
    PIW: width > 67 inch 616 PIW and 868 - 1215 PIW

    Coating layer

    Coating layer Coating weight total both sides
      oz/ft2
    G30 0.3
    G35 1 0.35
    G40 0.4
    G60 0.6
    G75 1 0.75
    G90 0.9
    G115 1.15

    1. not in ASTM A653: 2008.
    Other coating weights are available. Please contact us to discuss your requirements.

     

    EN_US-Engineering-Product-Metallic coated-Forming-EDDS

    EDDS
    Specification details for EDDS

    EN_US-Engineering-Product-Metallic coated-Forming-All Grades Overview

    Overview

    Applications:

    • Automotive components
    • Building components
    • Domestic appliances
    • Electrical goods
    • Tubes and sections

    Relationship with standards

    ASTM A653: 2008 ISO standard 3575 SAE JIS G3302-98
    Designation Name Designation    
    CS type A Commercial, lock forming 01, 02 - SGCC + SGCH
    CS type B Commercial, lock forming 01, 02 - -
    CS type C Commercial, lock forming 01, 02 - -
    FS type A Drawing 3 - -
    FS type B Deep drawing 4 - -
    DDS type A Deep drawing special killed 5 - -
    EDDS Extra deep drawing stabilized 6 - SGCD2

    See dimensional tables for available coating types per grade.

    EN_US-Engineering-Product-Metallic coated-All Grades Surface aspects

    Surface aspects

    Surface Aspects

    Surface quality

    Surface quality complies with ASTM standards A653: 2008 and A924: 2009. The products can be delivered with the following coating/surface types:

    Minimized spangle (standard surface)

    Imperfections such as pimples, marks, scratches, pits, variations in surface appearance, dark spots, stripe marks and light passivation stains are permissible.

    Stretch levelling breaks or run-off marks may appear. Coil breaks and stretcher strains may also appear.

    Minimized spangle temper rolled (improved surface)

    With this surface quality, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

    Extra smooth (best surface, exposed)

    Surface quality is obtained by skin passing. The controlled surface shall make it possible to apply a uniform high-class paint finish. The other surface shall at least have the characteristics of surface quality B. As a rule, the upper side of the strip is inspected; on request the strip can be turned over so that the underside is the inspected side.

    MagiZinc® is currently only available with standard or improved surface qualities.

    Surface roughness

    Metallic coated steel will normally be supplied with a regular matte finish:

    Description Roughness µinch CLA
    regular matte 30 - 61

    Surface treatments

    The surface treatments available are O, C and CO.

    Oiling (O)

    The material surface can be oiled with preservative oil. Other types of oil may be available to meet your requirement – please contact us.

    Tata Steel offers the following range of oiling levels for all coating types:

    Lightly oiled:  55 mg/ft2 per side
    Regular oiled:  110 mg/ft2 per side

    Other oiling levels are available on request. If no amount is indicated in your specification, a regular amount of oil will be applied.

    Chromium-free passivation (C)

    This surface treatment temporarily protects the zinc coated material against white rust during transportation and storage (not applicable to all qualities – please consult us).

    Chromium-free passivation and oiled (CO)

    Please request this combination of surface treatments if you require extra protection against white rust formation (not applicable to all qualities – please consult us).

     

    Please contact us on the availability of other surface treatments.

     

    EN_US-Engineering-Product-Metallic coated-Forming-EDDS TYPE-Properties

    Properties

    Properties

    Mechanical properties

    Zinc coated steel for forming has the following typical (non mandatory) mechanical properties parallel to the rolling direction:

    ASTM A653: 2008 Designation EDDS
    Yield strength ksi 15 - 25
    Elongation 2 inch % ≥ 40
    rm - value   1.6 - 2.1
    n - value   0.22 - 0.27


    Chemical composition

    The heat analysis of the base metal confirms to the following maximum composition values (in weight percentage), unless otherwise shown.

      Designation EDDS
    C Max. 0.02
    Mn Max. 0.4
    P Max. 0.02
    S Max. 0.02
    Al Min. 0.01
    V Max. 0.1
    Cb Max. 0.1
    Ti Max. 0.15
    All values are in weight%.
    EDDS shall be furnished as a stabilized steel.

    EN_US-Engineering-Product-Metallic coated-Forming-EDDS Type-Dimensions

    Dimensions

    Dimensions

    Galvanized dimensional capability.

    Dimensions in inches.

    Thickness Max. width
    From - up to EDDS
    0.014 - 0.016 -
    0.016 - 0.018 -
    0.018 - 0.020 60
    0.020 - 0.024 60
    0.024 - 0.026 63
    0.026 - 0.028 70
    0.028 - 0.030 74
    0.030 - 0.031 80
    0.031 - 0.035 80
    0.035 - 0.040 80
    0.040 - 0.055 80
    0.055 - 0.060 80
    0.060 - 0.065 80
    0.065 - 0.070 80
    0.070 - 0.080 80
    0.080 - 0.090 80
    0.090 - 0.095 76
    0.095 - 0.100 61
    0.100 - 0.110 -
    0.110 - 0.115 -
    The minimum width is 36 inch.
    Please contact us about the availability of lower widths, specific coating weights and surface finishes, as well as the availability of other extra formable grades.

     

    MagiZinc® dimensional capability.

    Dimensions in inches.

    Thickness Max. width
    From - up to EDDS
    0.016 - 0.018 -
    0.018 - 0.020 -
    0.020 - 0.024 80
    0.024 - 0.026 76
    0.026 - 0.028 61
    0.028 - 0.047 -
    0.047 - 0.079 -
    The minimum width is 36 inch.
    Please contact us on the availability of lower widths and thicknesses in the range 0.079 - 0.098.
    Please contact us for details on the availability of other coating types.

     

    Tolerances on thickness

    The tolerances comply with standard ASTM A924: 2013.
    Tighter tolerances are available on request.

    EN_US-Engineering-Product-Metallic coated-All grades Shape and dimensional tolerances

    Shape and dimensional tolerances

    Shape and dimensional tolerances

    Tolerances on thickness

    The thickness tolerances comply with standard ASTM A924: 2013 – 1 inch minimum edge distance.
    Thickness tolerances over, no tolerance under. Dimensions in inches:

    Specified thickness Normal tolerances for a specified width of
    From - up to 0 - 32 32 - 40 40 - 60 60 - 75
    0.000 - 0.023 0.003 0.003 0.003 0.003
    0.023 - 0.043 0.004 0.004 0.004 0.004
    0.043 - 0.061 0.005 0.005 0.005 0.005
    0.061 - 0.075 0.006 0.006 0.006 0.006
    0.075 - 0.101 0.01 0.012 0.012 0.014
    0.101 - 0.187 0.012 0.012 0.014 0.014

    Around cold-rolled welds an increase of 20 % at the most over the thickness tolerance is allowed over a length of 50 ft.
    Thickness tolerance availability is shown below:

    Thickness tolerance Availability
    Full thickness tolerance Available
    Special thickness tolerance Refer before ordering
    50% of full thickness tolerance Refer before ordering

    Tolerances on width

    The tolerances for width comply with standard ASTM A924: 2013.
    Thickness tolerances over, no tolerance under. Dimensions in inches:

    Specified width Tolerances for a specified width of
    From - up to Mill edge Cut edge
    30 - 48 0.71 0.187
    48 - 60 0.71 0.25
    60 - 75 0.71 0.312

    MagiZinc® is not included in the standard. Tighter tolerances are available on request.

    Dimensions and coil weights

    Description Capabilities
    Inside diameter standard 24 inches, 20 inches on request
    Outside diameter maximum 98 inches and at the most
      10/7 x width
    Coil weight maximum 66.000 lbs.
    PIW: width ≤ 47 868 - 1232 PIW
    PIW: 47 inch < width ≤ 67 inch 868 - 1215 PIW
    PIW: width > 67 inch 616 PIW and 868 - 1215 PIW

    Coating layer

    Coating layer Coating weight total both sides
      oz/ft2
    G30 0.3
    G35 1 0.35
    G40 0.4
    G60 0.6
    G75 1 0.75
    G90 0.9
    G115 1.15

    1. not in ASTM A653: 2008.
    Other coating weights are available. Please contact us to discuss your requirements.