Cold-rolled
Enamelling steel

Tata Steel’s cold-rolled Vitrostaal family is designed specifically for enamelling.

Vitrostaal cab deliver end-product and process benefits including superb coating adhesion and reliable deep drawing.

Applications include bakeware, barbecues, bathroom furniture, heat-exchange panels, photovoltaic solar panels, domestic appliances, sinks white boards and wall panels.

Ymvit enamelling steel component
Bath tub made from Ymvit product
tata-steel-industry-strip-cold-rolled-Ymvit 01_DSC0747.jpg
tata-steel-industry-strip-cold-rolled-Ymvit Ultra 04_DSC0801.jpg
Product specification
Steel for enamelling is currently available in the following grades

EN_US-Engineering-Product-Cold-rolled-Ymvit enamelling-Vitrostaal LD CS

Vitrostaal LD CS
Specification details for Vitrostaal LD CS

EN_US-Engineering-Product-Cold-rolled-Ymvit enameling-All Grades Overview

Overview

Overview

Tata Steel has the correct steel grade for direct and conventional enameling and for one or two layered enameling.
 

Vitrostaal LD CS/DS

The ultimate enameling steels made by Tata Steel, suitable for direct cover coat enameling. Decarburized in the steelplant, titanium free, cold-rolled and batch annealed, it has perfect adhesion of coating. Vitrostaal LD has improved resistance to carbon boiling and fish scaling.
 

Vitrostaal IF

Is a titanium stabilized enameling steel fit for all purposes when suitable enameling processes are used. It is especially suitable for applications where extra deep drawing is necessary.
 

Applications

  • Barbecues
  • Bathtubs
  • Cookers and washing machines
  • Heat exchange panels (pore-free)
  • Photo Voltaic solar panels
  • Sinks
  • White boards and wall panels
     

Relationship with standards

Steel for direct white enameling complies with ASTM standard A424: 2006.

Tata Steel USA
Vitrostaal ASTM A424: 2006
Grade Grade
Vitrostaal LD CS Type I CS
Vitrostaal LD DS Type I DS
Vitrostaal IF Type III IF
Vitrostaal LD CS/DS and Vitrostaal IF are also suitable for conventional enameling.
 

EN_US-Engineering-Product-Cold-rolled-All Grades Surface aspects

Surface aspects

Surface aspects

Surface quality according to ASTM A1008: 2013 and ASTM A568: 2011
 

Surface quality class 1 (exposed):

The better side must be free of defects that can spoil the uniform appearance of a high quality paint or of an electrolytic coating. The other side must at least conform to surface quality unexposed.
 

Surface quality class 2 (unexposed):

Defects that do not influence the formability or the application of surface coatings are permitted. These are defects such as pores, minor scratches,
slight indentations, small grooves or slight discolouration.
 

Inspected side

As a rule, the upper side of the strip is inspected; on request, the strip can be wound so that the inspected side is the underside.

Surface texture/roughness

Cold-rolled annealed and skin passed steel is available in several surface textures. All textures are available.
Unless specified otherwise, Tata Steel will supply ‘Regular matte’.
 

Description Roughness µinch CLA
Commercial bright ≤ 10
H - dull ≤ 16
Light matte ≤ 36
Regular matte 24 - 76
Rough matte 64 - 100

Preservative oil

The standard oil applied by Tata Steel acts as a protective coating.
Other types of oil may be available to meet your requirement.

Tata Steel offers a range of oiling levels:
Lightly oiled:  55 mg/ft2 per side
Regular oiled:  110 mg/ft2 per side

Other oiling levels are available on request. Tata Steel is not responsible for the risk of corrosion during storage or shipment if material is ordered in the unoiled condition.

Surface cleanliness

Tata Steel can guarantee improved surface cleanliness on request for batch-annealed products. The cleanliness is tested with a tape test, in which the loss of reflection is measured. The reflection gives an indication of the oil residue on the annealed product.
Two levels of loss of reflectivity are available for batch annealed products: a maximum of 20% or a maximum of 30%. Continuously-annealed products typically exhibit a loss of reflection up to around 10%.

 

EN_US-Engineering-Product-Cold-rolled-Ymvit enamelling-Vitrostaal LD CS-Properties

Properties

Properties


Mechanical properties

Steel for enamelling has the following typical mechanical properties (skin-passed) - these are measured transverse to the rolling direction.

Tata Steel Vitrostaal Grade Vitrostaal LD CS
ASTM A424: 2006 Grade Type I CS
Yield strength ksi 19
Tensile strength ksi 39
Elongation % 52
rm-value   1.76
n-value   0.23
Min. elongation after fraction uses test piece length L0 = 2 inches.
 

Chemical composition

Tata Steel’s Vitrostaal complies with the following heat analysis with maximum values in weight percentages.

Tata Steel Vitrostaal Vitrostaal LD CS
ASTM A424: 2006 Grade Type I CS
C Max. 0.004
Mn Max. 0.35
S Max. 0.030
Ti Max. -
Cu 1 Max. 0.040
 1. Copper concentration is dependent on phosphorous concentration.
The elements P and Cu are kept within certain limits to ensure that the reactivity of the steel surface is as constant as possible. Under normal conditions this leads to a reproducible enamelling result.
 

Surface aspects

Steel for enameling shall be supplied with a surface roughness between 24 and 76 CLA.

 

EN_US-Engineering-Product-Cold-rolled-Ymvit enamelling-Vitrostaal LD CS-Dimensions

Dimensions

Dimensional capability

Dimensions in inches.

Thickness Max. width
From - up to Vitrostaal LD CS
0.016 - 0.018 73
0.018 - 0.020 74
0.020 - 0.024 76
0.024 - 0.030 76
0.030 - 0.055 77
0.055 - 0.065 71
0.065 - 0.070 65
0.070 - 0.080 59
Minimum width is 30 inch.
Other dimensions may be available – please contact us for details.
 

Tolerances on thickness

Tolerances comply with standard ASTM A 568: 2011.
Tighter tolerances are available, please contact us for details.

EN_US-Engineering-Product-Cold-rolled-All grades Shape and dimensional tolerances

Shape and dimensional tolerances

Shape and dimensional tolerances

Tolerances on thickness

Tata Steel can supply to full thickness tolerance specified in ASTM A568: 2015 / A635: 2015.
Thickness tolerances over, no tolerance under.
Tighter tolerances are available as shown below:

Carbon Steel Thickness tolerances available
ASTM A 568 (2015) / A635 (2015)
20 - 40 40 - 48 48 - 60 60 - 72 >72
0.031 - 0.051 0.01 0.01 0.01 0.01 0.01
0.051 - 0.057 0.01 0.012 0.012 0.014 0.014
0.057 - 0.071 0.012 0.012 0.014 0.014 0.014
0.071 - 0.098 0.014 0.014 0.014 0.016 0.016
0.098 - 0.179 0.014 0.016 0.016 0.016 0.016
0.179 - 0.229 0.016 0.018 0.02 0.022 0.024
0.229 - 0.313 0.022 0.024 0.024 0.026 0.03
0.313 - 0.375 0.024 0.026 0.028 0.03 0.032
0.375 - 0.500 0.028 0.028 0.03 0.032 0.036
0.500 - 0.625 0.03 0.03 0.032 0.036 0.038
0.625 - 1.000 0.032 0.032 0.034 0.038 0.04

 

 

HSLA Thickness tolerances available
ASTM A568 (2007) / A635 (2007)
20 - 32 32 - 40 40 - 48 48 - 60 60 - 72 72 - 80 > 80
0.031 - 0.051 0.012 0.012 0.012 0.012 0.012 0.012 0.012
0.051 - 0.059 0.012 0.012 0.014 0.014 0.014 0.014 0.014
0.059 - 0.070 0.014 0.014 0.014 0.014 0.016 0.016 0.016
0.070 - 0.082 0.014 0.014 0.014 0.014 0.016 0.016 0.016
0.082 - 0.098 0.014 0.016 0.116 0.016 0.018 0.018 0.02
0.098 - 0.179 0.016 0.016 0.02 0.02 0.022 0.024 0.024
0.179 - 0.229 0.018 0.018 0.02 0.02 0.022 0.024 0.024
0.229 - 0.313 0.022 0.022 0.024 0.024 0.026 0.03 0.03
0.313 - 0.375 0.024 0.024 0.026 0.028 0.03 0.032 0.032
0.375 - 0.500 0.028 0.028 0.028 0.03 0.032 0.036 0.036
0.500 - 0.625 0.03 0.03 0.03 0.032 0.036 0.038 0.038
0.625 - 1.000 0.032 0.032 0.032 0.034 0.038 0.04 0.04

 

Option for maximum crown values

At the time of ordering, specific agreements can be made on the crown of hot-rolled strip.

 

Tolerances on width, edge camber and flatness

Material will be supplied conforming to the tolerances specified in ASTM A568 (2007) / A635 (2007). Width tolerances are over, no tolerance under.

Width tolerances available  
Carbon steel ASTM A568: 2015 / A635: 2015
Mill edge Cut edge
24 - 26 0.812 0.125
26 - 28 0.937 0.125
28 - 30 0.937 0.125
30 - 35 1.125 0.187
35 - 48 1.125 0.187
48 - 50 1.125 0.25
50 - 60 1.5 0.25
60 - 65 1.5 0.312
65 - 70 1.5 0.312
70 - 78 1.5 0.312
78 - 80 1.875 0.312
80 - 82 1.875 0.375

 

Width tolerances available    
HSLA ASTM A568: 2007 / A635: 2007
Mill edge Cut edge
24 - 26 0.812 0.125
26 - 28 0.937 0.125
28 - 30 1.125 0.125
30 - 35 1.125 0.187
35 - 48 1.25 0.187
48 - 50 1.25 0.25
50 - 60 1.5 0.25
60 - 65 1.625 0.312
65 - 70 1.75 0.312
70 - 78 1.875 0.312
78 - 80 2 0.375
80 - 82 1.875 0.375

 

 

Dimensions and coil weights

Tata Steel can supply hot-rolled steels with the following minimum and maximum dimensions and weights.

Description Capability
Coil diameter inner non-pickled 30 inch
Coil diameter inner pickled 24 inch standard
30 inch on request
Tolerance on inner diameter +0/-2 inch
Coil diameter outer non-pickled Outer diameter available is 10/7 x width to reduce possibility of coil tipping over
Max. 86 inch
Min. 41.5 inch
Coil diameter outer pickled and oiled Outer diameter available is 10/7 x width to reduce possibility of coil tipping over
Max. 86 inch
Min. 65 inch
Coil weight Max. 75,000 lbs
Maximum coil weight limits can vary due to
transport limits and outer coil diameter
Some HR products may have different coil weight ranges
PIW  width ≤ 47 inch 868 - 1288 PIW width
PIW  47 inch < width ≤ 67 inch 868 - 1215 PIW width
PIW  width > 67 inch 616 PIW width and 868 - 1215 PIW width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

 

 

EN_US-Engineering-Product-Cold-rolled-Ymvit enamelling-Vitrostaal LD DS

Vitrostaal LD DS
Specification details for Vitrostaal LD DS

EN_US-Engineering-Product-Cold-rolled-Ymvit enameling-All Grades Overview

Overview

Overview

Tata Steel has the correct steel grade for direct and conventional enameling and for one or two layered enameling.
 

Vitrostaal LD CS/DS

The ultimate enameling steels made by Tata Steel, suitable for direct cover coat enameling. Decarburized in the steelplant, titanium free, cold-rolled and batch annealed, it has perfect adhesion of coating. Vitrostaal LD has improved resistance to carbon boiling and fish scaling.
 

Vitrostaal IF

Is a titanium stabilized enameling steel fit for all purposes when suitable enameling processes are used. It is especially suitable for applications where extra deep drawing is necessary.
 

Applications

  • Barbecues
  • Bathtubs
  • Cookers and washing machines
  • Heat exchange panels (pore-free)
  • Photo Voltaic solar panels
  • Sinks
  • White boards and wall panels
     

Relationship with standards

Steel for direct white enameling complies with ASTM standard A424: 2006.

Tata Steel USA
Vitrostaal ASTM A424: 2006
Grade Grade
Vitrostaal LD CS Type I CS
Vitrostaal LD DS Type I DS
Vitrostaal IF Type III IF
Vitrostaal LD CS/DS and Vitrostaal IF are also suitable for conventional enameling.
 

EN_US-Engineering-Product-Cold-rolled-All Grades Surface aspects

Surface aspects

Surface aspects

Surface quality according to ASTM A1008: 2013 and ASTM A568: 2011
 

Surface quality class 1 (exposed):

The better side must be free of defects that can spoil the uniform appearance of a high quality paint or of an electrolytic coating. The other side must at least conform to surface quality unexposed.
 

Surface quality class 2 (unexposed):

Defects that do not influence the formability or the application of surface coatings are permitted. These are defects such as pores, minor scratches,
slight indentations, small grooves or slight discolouration.
 

Inspected side

As a rule, the upper side of the strip is inspected; on request, the strip can be wound so that the inspected side is the underside.

Surface texture/roughness

Cold-rolled annealed and skin passed steel is available in several surface textures. All textures are available.
Unless specified otherwise, Tata Steel will supply ‘Regular matte’.
 

Description Roughness µinch CLA
Commercial bright ≤ 10
H - dull ≤ 16
Light matte ≤ 36
Regular matte 24 - 76
Rough matte 64 - 100

Preservative oil

The standard oil applied by Tata Steel acts as a protective coating.
Other types of oil may be available to meet your requirement.

Tata Steel offers a range of oiling levels:
Lightly oiled:  55 mg/ft2 per side
Regular oiled:  110 mg/ft2 per side

Other oiling levels are available on request. Tata Steel is not responsible for the risk of corrosion during storage or shipment if material is ordered in the unoiled condition.

Surface cleanliness

Tata Steel can guarantee improved surface cleanliness on request for batch-annealed products. The cleanliness is tested with a tape test, in which the loss of reflection is measured. The reflection gives an indication of the oil residue on the annealed product.
Two levels of loss of reflectivity are available for batch annealed products: a maximum of 20% or a maximum of 30%. Continuously-annealed products typically exhibit a loss of reflection up to around 10%.

 

EN_US-Engineering-Product-Cold-rolled-Ymvit enamelling-Vitrostaal LD DS-Properties

Properties

Properties


Mechanical properties

Steel for enamelling has the following typical mechanical properties (skin-passed) - these are measured transverse to the rolling direction.

Tata Steel Vitrostaal Grade Vitrostaal LD DS
ASTM A424: 2006 Grade Type I DS
Yield strength ksi 18
Tensile strength ksi 39
Elongation % 52
rm-value   1.77
n-value   0.24
Min. elongation after fraction uses test piece length L0 = 2 inches.
 

Chemical composition

Tata Steel’s Vitrostaal complies with the following heat analysis with maximum values in weight percentages.

Tata Steel Vitrostaal Vitrostaal LD DS
ASTM A424: 2006 Grade Type I DS
C Max. 0.004
Mn Max. 0.35
S Max. 0.030
Ti Max. -
Cu 1 Max. 0.040
 1. Copper concentration is dependent on phosphorous concentration.
The elements P and Cu are kept within certain limits to ensure that the reactivity of the steel surface is as constant as possible. Under normal conditions this leads to a reproducible enamelling result.
 

Surface aspects

Steel for enameling shall be supplied with a surface roughness between 24 and 76 CLA.
 

EN_US-Engineering-Product-Cold-rolled-Ymvit enamelling-Vitrostaal LD DS-Dimensions

Dimensions

Dimensional capability

Dimensions in inches.

Thickness Max. width
From - up to Vitrostaal LD DS
0.016 - 0.018 73
0.018 - 0.020 74
0.020 - 0.024 76
0.024 - 0.030 76
0.030 - 0.055 77
0.055 - 0.065 71
0.065 - 0.070 65
0.070 - 0.080 59
Minimum width is 30 inch.
Other dimensions may be available – please contact us for details.
 

Tolerances on thickness

Tolerances comply with standard ASTM A 568: 2011.
Tighter tolerances are available, please contact us for details.
 

EN_US-Engineering-Product-Cold-rolled-All grades Shape and dimensional tolerances

Shape and dimensional tolerances

Shape and dimensional tolerances

Tolerances on thickness

Tata Steel can supply to full thickness tolerance specified in ASTM A568: 2015 / A635: 2015.
Thickness tolerances over, no tolerance under.
Tighter tolerances are available as shown below:

Carbon Steel Thickness tolerances available
ASTM A 568 (2015) / A635 (2015)
20 - 40 40 - 48 48 - 60 60 - 72 >72
0.031 - 0.051 0.01 0.01 0.01 0.01 0.01
0.051 - 0.057 0.01 0.012 0.012 0.014 0.014
0.057 - 0.071 0.012 0.012 0.014 0.014 0.014
0.071 - 0.098 0.014 0.014 0.014 0.016 0.016
0.098 - 0.179 0.014 0.016 0.016 0.016 0.016
0.179 - 0.229 0.016 0.018 0.02 0.022 0.024
0.229 - 0.313 0.022 0.024 0.024 0.026 0.03
0.313 - 0.375 0.024 0.026 0.028 0.03 0.032
0.375 - 0.500 0.028 0.028 0.03 0.032 0.036
0.500 - 0.625 0.03 0.03 0.032 0.036 0.038
0.625 - 1.000 0.032 0.032 0.034 0.038 0.04

 

 

HSLA Thickness tolerances available
ASTM A568 (2007) / A635 (2007)
20 - 32 32 - 40 40 - 48 48 - 60 60 - 72 72 - 80 > 80
0.031 - 0.051 0.012 0.012 0.012 0.012 0.012 0.012 0.012
0.051 - 0.059 0.012 0.012 0.014 0.014 0.014 0.014 0.014
0.059 - 0.070 0.014 0.014 0.014 0.014 0.016 0.016 0.016
0.070 - 0.082 0.014 0.014 0.014 0.014 0.016 0.016 0.016
0.082 - 0.098 0.014 0.016 0.116 0.016 0.018 0.018 0.02
0.098 - 0.179 0.016 0.016 0.02 0.02 0.022 0.024 0.024
0.179 - 0.229 0.018 0.018 0.02 0.02 0.022 0.024 0.024
0.229 - 0.313 0.022 0.022 0.024 0.024 0.026 0.03 0.03
0.313 - 0.375 0.024 0.024 0.026 0.028 0.03 0.032 0.032
0.375 - 0.500 0.028 0.028 0.028 0.03 0.032 0.036 0.036
0.500 - 0.625 0.03 0.03 0.03 0.032 0.036 0.038 0.038
0.625 - 1.000 0.032 0.032 0.032 0.034 0.038 0.04 0.04

 

Option for maximum crown values

At the time of ordering, specific agreements can be made on the crown of hot-rolled strip.

 

Tolerances on width, edge camber and flatness

Material will be supplied conforming to the tolerances specified in ASTM A568 (2007) / A635 (2007). Width tolerances are over, no tolerance under.

Width tolerances available  
Carbon steel ASTM A568: 2015 / A635: 2015
Mill edge Cut edge
24 - 26 0.812 0.125
26 - 28 0.937 0.125
28 - 30 0.937 0.125
30 - 35 1.125 0.187
35 - 48 1.125 0.187
48 - 50 1.125 0.25
50 - 60 1.5 0.25
60 - 65 1.5 0.312
65 - 70 1.5 0.312
70 - 78 1.5 0.312
78 - 80 1.875 0.312
80 - 82 1.875 0.375

 

Width tolerances available    
HSLA ASTM A568: 2007 / A635: 2007
Mill edge Cut edge
24 - 26 0.812 0.125
26 - 28 0.937 0.125
28 - 30 1.125 0.125
30 - 35 1.125 0.187
35 - 48 1.25 0.187
48 - 50 1.25 0.25
50 - 60 1.5 0.25
60 - 65 1.625 0.312
65 - 70 1.75 0.312
70 - 78 1.875 0.312
78 - 80 2 0.375
80 - 82 1.875 0.375

 

 

Dimensions and coil weights

Tata Steel can supply hot-rolled steels with the following minimum and maximum dimensions and weights.

Description Capability
Coil diameter inner non-pickled 30 inch
Coil diameter inner pickled 24 inch standard
30 inch on request
Tolerance on inner diameter +0/-2 inch
Coil diameter outer non-pickled Outer diameter available is 10/7 x width to reduce possibility of coil tipping over
Max. 86 inch
Min. 41.5 inch
Coil diameter outer pickled and oiled Outer diameter available is 10/7 x width to reduce possibility of coil tipping over
Max. 86 inch
Min. 65 inch
Coil weight Max. 75,000 lbs
Maximum coil weight limits can vary due to
transport limits and outer coil diameter
Some HR products may have different coil weight ranges
PIW  width ≤ 47 inch 868 - 1288 PIW width
PIW  47 inch < width ≤ 67 inch 868 - 1215 PIW width
PIW  width > 67 inch 616 PIW width and 868 - 1215 PIW width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

 

 

EN_US-Engineering-Product-Cold-rolled-Ymvit enamelling-Vitrostaal IF

Vitrostaal IF
Specification details for Vitrostaal IF

EN_US-Engineering-Product-Cold-rolled-Ymvit enameling-All Grades Overview

Overview

Overview

Tata Steel has the correct steel grade for direct and conventional enameling and for one or two layered enameling.
 

Vitrostaal LD CS/DS

The ultimate enameling steels made by Tata Steel, suitable for direct cover coat enameling. Decarburized in the steelplant, titanium free, cold-rolled and batch annealed, it has perfect adhesion of coating. Vitrostaal LD has improved resistance to carbon boiling and fish scaling.
 

Vitrostaal IF

Is a titanium stabilized enameling steel fit for all purposes when suitable enameling processes are used. It is especially suitable for applications where extra deep drawing is necessary.
 

Applications

  • Barbecues
  • Bathtubs
  • Cookers and washing machines
  • Heat exchange panels (pore-free)
  • Photo Voltaic solar panels
  • Sinks
  • White boards and wall panels
     

Relationship with standards

Steel for direct white enameling complies with ASTM standard A424: 2006.

Tata Steel USA
Vitrostaal ASTM A424: 2006
Grade Grade
Vitrostaal LD CS Type I CS
Vitrostaal LD DS Type I DS
Vitrostaal IF Type III IF
Vitrostaal LD CS/DS and Vitrostaal IF are also suitable for conventional enameling.
 

EN_US-Engineering-Product-Cold-rolled-All Grades Surface aspects

Surface aspects

Surface aspects

Surface quality according to ASTM A1008: 2013 and ASTM A568: 2011
 

Surface quality class 1 (exposed):

The better side must be free of defects that can spoil the uniform appearance of a high quality paint or of an electrolytic coating. The other side must at least conform to surface quality unexposed.
 

Surface quality class 2 (unexposed):

Defects that do not influence the formability or the application of surface coatings are permitted. These are defects such as pores, minor scratches,
slight indentations, small grooves or slight discolouration.
 

Inspected side

As a rule, the upper side of the strip is inspected; on request, the strip can be wound so that the inspected side is the underside.

Surface texture/roughness

Cold-rolled annealed and skin passed steel is available in several surface textures. All textures are available.
Unless specified otherwise, Tata Steel will supply ‘Regular matte’.
 

Description Roughness µinch CLA
Commercial bright ≤ 10
H - dull ≤ 16
Light matte ≤ 36
Regular matte 24 - 76
Rough matte 64 - 100

Preservative oil

The standard oil applied by Tata Steel acts as a protective coating.
Other types of oil may be available to meet your requirement.

Tata Steel offers a range of oiling levels:
Lightly oiled:  55 mg/ft2 per side
Regular oiled:  110 mg/ft2 per side

Other oiling levels are available on request. Tata Steel is not responsible for the risk of corrosion during storage or shipment if material is ordered in the unoiled condition.

Surface cleanliness

Tata Steel can guarantee improved surface cleanliness on request for batch-annealed products. The cleanliness is tested with a tape test, in which the loss of reflection is measured. The reflection gives an indication of the oil residue on the annealed product.
Two levels of loss of reflectivity are available for batch annealed products: a maximum of 20% or a maximum of 30%. Continuously-annealed products typically exhibit a loss of reflection up to around 10%.

 

EN_US-Engineering-Product-Cold-rolled-Ymvit enamelling-Vitrostaal IF-Properties

Properties

Properties


Mechanical properties

Steel for enamelling has the following typical mechanical properties (skin-passed) - these are measured transverse to the rolling direction.

Tata Steel Vitrostaal Grade Vitrostaal IF
ASTM A424: 2006 Grade Type III
Yield strength ksi 20
Tensile strength ksi 41
Elongation % 50
rm-value   2.20
n-value   0.22
Min. elongation after fraction uses test piece length L0 = 2 inches.
 

Chemical composition

Tata Steel’s Vitrostaal complies with the following heat analysis with maximum values in weight percentages.

Tata Steel Vitrostaal Vitrostaal IF
ASTM A424: 2006 Grade Type III
C Max. 0.004
Mn Max. 0.35
S Max. 0.030
Ti Max. 0.080
Cu 1 Max. 0.040
 1. Copper concentration is dependent on phosphorous concentration.
The elements P and Cu are kept within certain limits to ensure that the reactivity of the steel surface is as constant as possible. Under normal conditions this leads to a reproducible enamelling result.
 

Surface aspects

Steel for enameling shall be supplied with a surface roughness between 24 and 76 CLA.

 

EN_US-Engineering-Product-Cold-rolled-Ymvit enamelling-Vitrostaal IF-Dimensions

Dimensions

Dimensional capability

Dimensions in inches.

Thickness Max. width
From - up to Vitrostaal IF
0.016 - 0.018 71
0.018 - 0.020 72
0.020 - 0.024 76
0.024 - 0.030 77
0.030 - 0.055 79
0.055 - 0.065 74
0.065 - 0.070 68
0.070 - 0.080 61
Minimum width is 30 inch.
Other dimensions may be available – please contact us for details.
 

Tolerances on thickness

Tolerances comply with standard ASTM A 568: 2011.
Tighter tolerances are available, please contact us for details.

EN_US-Engineering-Product-Cold-rolled-All grades Shape and dimensional tolerances

Shape and dimensional tolerances

Shape and dimensional tolerances

Tolerances on thickness

Tata Steel can supply to full thickness tolerance specified in ASTM A568: 2015 / A635: 2015.
Thickness tolerances over, no tolerance under.
Tighter tolerances are available as shown below:

Carbon Steel Thickness tolerances available
ASTM A 568 (2015) / A635 (2015)
20 - 40 40 - 48 48 - 60 60 - 72 >72
0.031 - 0.051 0.01 0.01 0.01 0.01 0.01
0.051 - 0.057 0.01 0.012 0.012 0.014 0.014
0.057 - 0.071 0.012 0.012 0.014 0.014 0.014
0.071 - 0.098 0.014 0.014 0.014 0.016 0.016
0.098 - 0.179 0.014 0.016 0.016 0.016 0.016
0.179 - 0.229 0.016 0.018 0.02 0.022 0.024
0.229 - 0.313 0.022 0.024 0.024 0.026 0.03
0.313 - 0.375 0.024 0.026 0.028 0.03 0.032
0.375 - 0.500 0.028 0.028 0.03 0.032 0.036
0.500 - 0.625 0.03 0.03 0.032 0.036 0.038
0.625 - 1.000 0.032 0.032 0.034 0.038 0.04

 

 

HSLA Thickness tolerances available
ASTM A568 (2007) / A635 (2007)
20 - 32 32 - 40 40 - 48 48 - 60 60 - 72 72 - 80 > 80
0.031 - 0.051 0.012 0.012 0.012 0.012 0.012 0.012 0.012
0.051 - 0.059 0.012 0.012 0.014 0.014 0.014 0.014 0.014
0.059 - 0.070 0.014 0.014 0.014 0.014 0.016 0.016 0.016
0.070 - 0.082 0.014 0.014 0.014 0.014 0.016 0.016 0.016
0.082 - 0.098 0.014 0.016 0.116 0.016 0.018 0.018 0.02
0.098 - 0.179 0.016 0.016 0.02 0.02 0.022 0.024 0.024
0.179 - 0.229 0.018 0.018 0.02 0.02 0.022 0.024 0.024
0.229 - 0.313 0.022 0.022 0.024 0.024 0.026 0.03 0.03
0.313 - 0.375 0.024 0.024 0.026 0.028 0.03 0.032 0.032
0.375 - 0.500 0.028 0.028 0.028 0.03 0.032 0.036 0.036
0.500 - 0.625 0.03 0.03 0.03 0.032 0.036 0.038 0.038
0.625 - 1.000 0.032 0.032 0.032 0.034 0.038 0.04 0.04

 

Option for maximum crown values

At the time of ordering, specific agreements can be made on the crown of hot-rolled strip.

 

Tolerances on width, edge camber and flatness

Material will be supplied conforming to the tolerances specified in ASTM A568 (2007) / A635 (2007). Width tolerances are over, no tolerance under.

Width tolerances available  
Carbon steel ASTM A568: 2015 / A635: 2015
Mill edge Cut edge
24 - 26 0.812 0.125
26 - 28 0.937 0.125
28 - 30 0.937 0.125
30 - 35 1.125 0.187
35 - 48 1.125 0.187
48 - 50 1.125 0.25
50 - 60 1.5 0.25
60 - 65 1.5 0.312
65 - 70 1.5 0.312
70 - 78 1.5 0.312
78 - 80 1.875 0.312
80 - 82 1.875 0.375

 

Width tolerances available    
HSLA ASTM A568: 2007 / A635: 2007
Mill edge Cut edge
24 - 26 0.812 0.125
26 - 28 0.937 0.125
28 - 30 1.125 0.125
30 - 35 1.125 0.187
35 - 48 1.25 0.187
48 - 50 1.25 0.25
50 - 60 1.5 0.25
60 - 65 1.625 0.312
65 - 70 1.75 0.312
70 - 78 1.875 0.312
78 - 80 2 0.375
80 - 82 1.875 0.375

 

 

Dimensions and coil weights

Tata Steel can supply hot-rolled steels with the following minimum and maximum dimensions and weights.

Description Capability
Coil diameter inner non-pickled 30 inch
Coil diameter inner pickled 24 inch standard
30 inch on request
Tolerance on inner diameter +0/-2 inch
Coil diameter outer non-pickled Outer diameter available is 10/7 x width to reduce possibility of coil tipping over
Max. 86 inch
Min. 41.5 inch
Coil diameter outer pickled and oiled Outer diameter available is 10/7 x width to reduce possibility of coil tipping over
Max. 86 inch
Min. 65 inch
Coil weight Max. 75,000 lbs
Maximum coil weight limits can vary due to
transport limits and outer coil diameter
Some HR products may have different coil weight ranges
PIW  width ≤ 47 inch 868 - 1288 PIW width
PIW  47 inch < width ≤ 67 inch 868 - 1215 PIW width
PIW  width > 67 inch 616 PIW width and 868 - 1215 PIW width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply