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  • Hot-rolled -  Durbar® Floor plate

    Durbar® is hot-rolled structural steel floor plate which can reduce construction costs.

    Durbar’s distinctive, raised surface pattern is extremely slip-resistant at all angles – allowing plates to be used in any direction. Its self-draining surface is easy to clean and reduces corrosion.

    • Proven Slip Resistance
      Durbar has extremely low slip potential in the dry state and low slip potential even when wet. This is because of the unique diamond pattern which is 23% deeper than leading competitors with 10% more studs.
    • Quality and Choice
      We have been producing Durbar® to the highest quality standards for more than 50 years. Durbar is certified to ISO TS 16949:2009 and meets the requirements of the Construction Products Directive.
    • Readily available and easy to process
      We are committed to prompt and reliable delivery. We supply Durbar through an extensive network of processors and distributors. The consistent quality of Durbar offers reliable, repeatable processing. It can be readily welded by normal processes and can also be cut and bent.
    • Delivering benefits
      Durbar® is a structural component and can be used as an integral part of structural performance. The distinctive pattern of raised studs provides a slip-resistant surface. Durbar® offers benefits including reduced construction costs, reliable, repeatable processing, easy cleaning and a long life.
    Contact us

    Durbar Enquiries

    Sales Enquiries

    T +44 (0)1633 472 028

    E: connect.durbar@tatasteeleurope.com

    Technical Enquiries

    T +44 (0)1639 602460

    E: connect.durbar@tatasteeleurope.com

    Overview

    Durbar is hot-rolled structural steel floor plate offering distinct benefits. It combines structural integrity with appealing features designed for easy use and long life. Durbar helps reduce construction costs by eliminating the need for separate structural and flooring components. Its distinctive, raised surface pattern is extremely slip resistant at all angles – allowing plates to be used in any direction. The raised pattern creates a self-draining surface. This is easy to clean and reduces corrosion for extended product life.

     




    Limitation of use statement

    EN10025-1:2004 CE Approved Factory Production Control Certificate
    0038/CPD/20060004/A (Limitations of Use “Floor Plate Applications”)


    Relationship with standards

    Durbar meets the mechanical and chemical properties of EN 10025-2: 2004
    and is available in grades S235JR+AR, S275JR+AR and S355JR+AR.


    Load span data

    Members of The Steel Construction Institute can view load span data for Durbar at www.steelbiz.org, in table C242, floor plates simply supported, from the Steel Designers Manual, 6th Edition, 2003.


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    Properties

    Mechanical properties

    The mechanical properties of Durbar® comply with EN 10025-2: 2004 and are shown in the table below. The values shown for strength and elongation are for test pieces taken transverse to the rolling direction; those for the impact test are for test pieces taken in the rolling direction.

    Grade

    Min. yield strength 1

    ReL

    Tensile strength
    Rm

    Min. elongation after fracture A

    Impact test

     

    N/mm2

    N/mm2

    %

     

     

     

     

    L0 = 5.65√S0

    Temp. °C

    Min. energy J

     

     

     

    3 ≤ t ≤ 12.5

     

     

    S235JR+AR

    235

    360 - 510

    24

    20

    27

    S275JR+AR

    275

    410 - 560

    21

    20

    27

    S355JR+AR

    355

    470 - 630

    20

    20

    27

    1. Lower yield strength or 0.2% proof stress applies.
    t - material thickness in mm.

     

    Chemical composition

    The chemical composition of Durbar® complies with EN 10025-2: 2004 and is shown in the table below.

    Grade

    C

    Mn

    P

    S

    Si

    N

     

    Max.

    Max.

    Max.

    Max.

    Max.

    Max.

    S235JR+AR

    0.17

    1.40

    0.035

    0.035

    -

    0.012

    S275JR+AR

    0.21

    1.50

    0.035

    0.035

    0.012

    S355JR+AR

    0.24

    1.60

    0.035

    0.035

    0.55

    0.012

    All values in weight%.

     

     

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    Dimensions

     

    Dimensions in mm.

    Thickness Standard width    
      S235JR+AR S275JR+AR S355JR+AR
    3 1250 1250 1250
    4.5 1500 1500 1500
    6 1500 1500 1500
    8 1500 1500 1500
    10 1500 1500 1500
    12.5 1500 1500 1500

    The minimum width is 1000mm.
    Please contact us for details for any other non-standard dimensions.

    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

    Design

     

    Using Durbar®

    Durbar is a non-slip raised pattern floor plate of integral manufacture (the pattern is rolled in not welded). The "tear drop" studs are distributed to give maximum slip resistance in a variety of applications whilst ensuring a free draining surface.

    The nominal gauge of Durbar is the thickness of the plain plate exclusive of pattern.

    Unit Area Density

    Thickness on plain Mass
    (mm) (kg/m2)
    3 27
    4.5 39
    6 50
    8 66
    10 82

    12.5

    101

    Capacity Tables

    It is usual to consider floor plates as supported on all four edges although stiffeners or joint covers may only support two edges. If the plates are securely bolted or welded to the supporting system, they may be considered as encastré. This increases the load carrying capacity slightly but reduces the deflection considerably.

    The thickness given is exclusive of any raised pattern i.e. on plain.
    The breadth is the smaller dimension and the length the greater, irrespective of the position of the main support members.
    The maximum uniformly distributed load on the plate (w) is given by Pounder's formula and the maximum skin stress is limited to the design strength py

    For calculating the maximum deflection (dmax) at serviceability, the uniformly distributed imposed load (wimp) on the plate is derived as follows.

    w = gdead wdead + gimp wimp
    wimp = (w - gdead wdead)/ gimp

    For plates simply supported on all four edges

    This formula assumes that there is no resistance to uplift at plate corners.

    w = a1 py t2 / k B2 [ 1 + a2(1-k) + a3(1-k)2]
    dmax = a4 k wimp B4 [1+a5(1-k) + a6(1-k)2] / E t3

    Where resistance to uplift at corners is provided, the above formula will be conservative. Higher values may be obtained by assuming encastré status as outlined below.

    For plates encastré on all four edges

    The plate must be secured to prevent uplift, which would otherwise occur at the plate corners.

    w = a7 py t2 / k B2 [ 1 + a8(1-k) + a9(1-k)2]
    dmax = a10 k wimp B4 [1+a11(1-k) + a12(1-k)2] / E t3

    Where:

    L = length of plate (mm) (L > B)
    B = breadth of plate (mm)
    t = thickness of the plate on plain (mm)
    k = L4/(L4+ B4)
    py = design strength of plate ( 275 N/mm2 or 355 N/mm2)
    E = Young's modulus (205 x 103 N/mm2)
    1/m = Poisson's ratio (m = 3.0)
    gdead = load factor for dead load (1.4)
    gimp = load factor for imposed load (1.6)
    dmax = maximum deflection (mm) at serviceability due to imposed loads only
    w = uniformly distributed load on plate (ultimate) (N/mm2)
    wdead = uniformly distributed self weight of plate (N/mm2)
    wimp = uniformly distributed imposed load on plate (N/mm2)
    a1 to a12 are constants as below:

    Constant Value
    a1 = 4/3
    a2 = 14/75
    a3 = 20/57
    a4 = (5m2 -5)/32m2
    a5 = 37/175
    a6 = 79/201
    a7 = 2
    a8 = 11/35
    a9 = 79/141
    a10 = (m2 -1)/32m2
    a11 = 47/210
    a12

    = 200/517

     

    Durbar ultimate load capacity –various sized plates

    Fixed on all four sides (encastré)

    The ultimate uniformly distributed load for various sizes of Durbar plates fixed on all four sides and stressed to 275N/mm2 can be determined by using the table. The values are based upon equations developed by C.C. Pounder and conform to the construction and fixing requirements in BS 4592-5 : 2006.  The values in the tables are theoretical; in-use performance may vary. This information should not be used without the advice of a qualified structural engineer. Users of this information should satisfy themselves that it is suitable for their purpose.

    Ultimate load capacity (kN/m2) for Durbar fixed on all four sides and stressed to 275N/mm2 

    Values obtained with plates secured to prevent uplift

    Thickness (t)   Ultimate distributed load (kN/m2) for length, L, (mm)
    (mm) Breadth, B, (mm) 600 800 1000 1200 1400 1600 1800 2000
    3 600  21.2  16.3  14.9  14.3  14.1  13.9  13.9  13.8
      800    10.7§  8.4§  7.5§  7.1§  6.9§  6.8§  6.7§
      1000      5.6§  4.6§  4.2§  3.9§  3.8§  3.7§
      1200        3.4§  2.9§  2.6§  2.5§  2.4§
      1400          2.3§  2.0§  1.8§  1.7§
    4.5 600  47.7 36.8 33.5  32.2  31.6  31.4  31.2  31.1 
      800    26.8 21.5  19.5  18.6  18.1  17.9  17.7 
      1000      17.2 14.2  12.9  12.2  11.8  11.6 
      1200        10.8 § 9.1 § 8.2 § 7.7 § 7.4 §
      1400          7.0 § 6.0 § 5.5 § 5.1 §
    6 600  84.8 65.4  59.5  57.3  56.2  55.7  55.5  55.3 
      800    47.7 38.3  34.7  33.1  32.2  31.7  31.5 
      1000      30.5 25.3  22.9  21.7  21.0  20.6 
      1200        21.2 18 16.3  15.4  14.9 
      1400          15.6 13.4  12.3  11.6
    8 600  150.8 116.2 105.9 101.8 100 99.1 98.6 98.3 
      800    84.8 68.1  61.7  58.8  57.3  56.4  56.0 
      1000      54.3 44.9  40.7  38.6  37.4  36.7 
      1200        37.7 31.9  29.0  27.4  26.5 
      1400          27.7 23.9  21.8  20.6 
    10 600  235.5 181.5  165.4  159.1  156.2  154.8  154.1  153.6 
      800    132.5 106.4  96.4  91.8  89.5  88.2  87.4 
      1000      84.8 70.2  63.7  60.3  58.4  57.3 
      1200        58.9 49.9  45.4  42.9  41.3 
      1400         43.3 37.3  34.1  32.2 
    12.5 600  368.0 283.6  258.4  248.6  244.1  241.9  240.7  240.0 
      800    207.0 166.2  150.7  143.5  139.8  137.8  136.6 
      1000      132.5 109.7  99.5  94.2  91.2  89.5 
      1200        92.0 77.9  70.9  67.0  64.6 
      1400          67.6 58.3  53.3  50.3 

    †. Stiffeners should be considered for spans in excess of 1100mm to avoid excessive deflections.

    §. Loads have been limited so that deflection ≤B/100 at serviceability, where serviceability is due to the imposed load only

     

     

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    Proven Slip Resistance

    For more than 50 years, Durbar® has been synonymous with slip-resistant patterned steel floor plate. Various tests have been conducted during this period to confirm the superior slip resistance performance of Durbar compared to any other floor plate in the market.

    The dense pattern of studs on Durbar creates a slip-resistant surface at all angles and allows plates to be used in any direction. Compared to some alternatives, Durbar has 10% more studs which are 23% deeper, giving class-leading slip resistance.

    In recent independent tests carried out on Durbar and a leading competitor’s product, genuine Durbar was consistently found to have the lowest slip potential, in both dry and wet conditions.

    Tests carried out according to BS EN 13036-4, BS 07976 and the UKSRG guidelines show both Durbar and the generic competitor product to have Low slip potential in the wet, but in the dry state only Durbar can be classified as having Extremely Low slip potential. In all cases, the results for Durbar were superior to the generic competitor product.

    Summary of results

    Item Average Value - Dry Test Potential for Slip  Average Value - Wet Test  Potential for Slip
    Generic `A` Teardrop Floor Plate 64 Low 42 Low
    Tata Steel Durbar® Floor Plate 73 Extremely Low 46 Low

    UK Slip Resistance Group Guidelines (issue 4, 2011)

    The below table represents the risk category for a reasonably active pedestrian between 18 and 60, walking in a straight line on a level surface.

    Pendulum Value Potential for Slip
    0-24 High
    25-35 Moderate
    36-64 Low
    65+ Extremely Low

    Frequently Asked Questions (FAQs)

     

    What is the fire resistance of Durbar?

    Durbar hot rolled steel floor plate is classed as non-combustible. When subjected to extreme heat, Durbar has distinct advantages over some other flooring materials. At temperatures where aluminium alloys have already begun to melt, Durbar steel floor plate will still be supporting design loads. The fire performance of an assembly is specific to the construction of that assembly and so we strongly recommend you check your fire rating with a qualified fire engineer.

     

    What is the slip resistance of Durbar?

    Durbar has been tested to BS 7976-2:2002 for slip resistance and found to have Extremely Low slip potential in the dry state and Low slip potential even when wet. The unique Durbar pattern ensures this optimised slip resistance and in comparison tests, competitors’ floor plate products display a lower slip resistance.

     

    Will galvanising and painting Durbar affect it’s characteristics?

    Independent testing, in both wet and dry conditions in accordance with BS7976-2 assessed as-supplied Durbar as extremely low slip when dry, and low slip when wet. Moreover, Durbar is self-draining.

    Galvanising and/or painting will alter the surface condition,  and thus the slip resistance – we suggest you  should consult the paint manufacturer for details of appropriate paint systems.

     

    Can Tata Steel provide calculations for my specific use case of Durbar?

    Durbar is stronger than ordinary mild steels, easily fabricated, and therefore well suited to performing a structural role efficiently. We provide load capacity tables for typical configurations of Durbar in the Design section of this web-page, which cover a range of representative cases. For specific use cases, we recommend that you consult an independent design engineer.

     

    Can I buy individual sheets of Durbar from Tata Steel?

    We manufacture Durbar in coil form and can supply both coil and cut sheet. We are the largest distributor in the UK of Durbar in a cut-sheet format. We supply Durbar sheet to an extensive range of local stockists that can provide product in appropriate sizes and quantities for specific end use requirements and projects

     
    Is Durbar a sustainable choice?

    Durbar is a structurally efficient choice for slip-resistant, hard-wearing and long-lasting flooring. Compared to some alternatives, less supporting structure is required. Durbar itself is 100% truly recyclable steel – indeed every sheet of Durbar includes a significant proportion of recycled steel.

    Durbar has been in use in structures for over 50 years and remains the benchmark in textured floorplate in the UK – the ability to match the pattern with existing material in use makes it excellent for prolonging the life of existing structures.

    Overview

    Overview

    Durbar is hot-rolled structural steel floor plate offering distinct benefits. It combines structural integrity with appealing features designed for easy use and long life. Durbar helps reduce construction costs by eliminating the need for separate structural and flooring components. Its distinctive, raised surface pattern is extremely slip resistant at all angles – allowing plates to be used in any direction. The raised pattern creates a self-draining surface. This is easy to clean and reduces corrosion for extended product life.

     




    Limitation of use statement

    EN10025-1:2004 CE Approved Factory Production Control Certificate
    0038/CPD/20060004/A (Limitations of Use “Floor Plate Applications”)


    Relationship with standards

    Durbar meets the mechanical and chemical properties of EN 10025-2: 2004
    and is available in grades S235JR+AR, S275JR+AR and S355JR+AR.


    Load span data

    Members of The Steel Construction Institute can view load span data for Durbar at www.steelbiz.org, in table C242, floor plates simply supported, from the Steel Designers Manual, 6th Edition, 2003.


    back to top

    Properties

    Properties

    Mechanical properties

    The mechanical properties of Durbar® comply with EN 10025-2: 2004 and are shown in the table below. The values shown for strength and elongation are for test pieces taken transverse to the rolling direction; those for the impact test are for test pieces taken in the rolling direction.

    Grade

    Min. yield strength 1

    ReL

    Tensile strength
    Rm

    Min. elongation after fracture A

    Impact test

     

    N/mm2

    N/mm2

    %

     

     

     

     

    L0 = 5.65√S0

    Temp. °C

    Min. energy J

     

     

     

    3 ≤ t ≤ 12.5

     

     

    S235JR+AR

    235

    360 - 510

    24

    20

    27

    S275JR+AR

    275

    410 - 560

    21

    20

    27

    S355JR+AR

    355

    470 - 630

    20

    20

    27

    1. Lower yield strength or 0.2% proof stress applies.
    t - material thickness in mm.

     

    Chemical composition

    The chemical composition of Durbar® complies with EN 10025-2: 2004 and is shown in the table below.

    Grade

    C

    Mn

    P

    S

    Si

    N

     

    Max.

    Max.

    Max.

    Max.

    Max.

    Max.

    S235JR+AR

    0.17

    1.40

    0.035

    0.035

    -

    0.012

    S275JR+AR

    0.21

    1.50

    0.035

    0.035

    0.012

    S355JR+AR

    0.24

    1.60

    0.035

    0.035

    0.55

    0.012

    All values in weight%.

     

     

    back to top

    Dimensions

    Dimensions

     

    Dimensions in mm.

    Thickness Standard width    
      S235JR+AR S275JR+AR S355JR+AR
    3 1250 1250 1250
    4.5 1500 1500 1500
    6 1500 1500 1500
    8 1500 1500 1500
    10 1500 1500 1500
    12.5 1500 1500 1500

    The minimum width is 1000mm.
    Please contact us for details for any other non-standard dimensions.

    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

    Design

    Design

     

    Using Durbar®

    Durbar is a non-slip raised pattern floor plate of integral manufacture (the pattern is rolled in not welded). The "tear drop" studs are distributed to give maximum slip resistance in a variety of applications whilst ensuring a free draining surface.

    The nominal gauge of Durbar is the thickness of the plain plate exclusive of pattern.

    Unit Area Density

    Thickness on plain Mass
    (mm) (kg/m2)
    3 27
    4.5 39
    6 50
    8 66
    10 82

    12.5

    101

    Capacity Tables

    It is usual to consider floor plates as supported on all four edges although stiffeners or joint covers may only support two edges. If the plates are securely bolted or welded to the supporting system, they may be considered as encastré. This increases the load carrying capacity slightly but reduces the deflection considerably.

    The thickness given is exclusive of any raised pattern i.e. on plain.
    The breadth is the smaller dimension and the length the greater, irrespective of the position of the main support members.
    The maximum uniformly distributed load on the plate (w) is given by Pounder's formula and the maximum skin stress is limited to the design strength py

    For calculating the maximum deflection (dmax) at serviceability, the uniformly distributed imposed load (wimp) on the plate is derived as follows.

    w = gdead wdead + gimp wimp
    wimp = (w - gdead wdead)/ gimp

    For plates simply supported on all four edges

    This formula assumes that there is no resistance to uplift at plate corners.

    w = a1 py t2 / k B2 [ 1 + a2(1-k) + a3(1-k)2]
    dmax = a4 k wimp B4 [1+a5(1-k) + a6(1-k)2] / E t3

    Where resistance to uplift at corners is provided, the above formula will be conservative. Higher values may be obtained by assuming encastré status as outlined below.

    For plates encastré on all four edges

    The plate must be secured to prevent uplift, which would otherwise occur at the plate corners.

    w = a7 py t2 / k B2 [ 1 + a8(1-k) + a9(1-k)2]
    dmax = a10 k wimp B4 [1+a11(1-k) + a12(1-k)2] / E t3

    Where:

    L = length of plate (mm) (L > B)
    B = breadth of plate (mm)
    t = thickness of the plate on plain (mm)
    k = L4/(L4+ B4)
    py = design strength of plate ( 275 N/mm2 or 355 N/mm2)
    E = Young's modulus (205 x 103 N/mm2)
    1/m = Poisson's ratio (m = 3.0)
    gdead = load factor for dead load (1.4)
    gimp = load factor for imposed load (1.6)
    dmax = maximum deflection (mm) at serviceability due to imposed loads only
    w = uniformly distributed load on plate (ultimate) (N/mm2)
    wdead = uniformly distributed self weight of plate (N/mm2)
    wimp = uniformly distributed imposed load on plate (N/mm2)
    a1 to a12 are constants as below:

    Constant Value
    a1 = 4/3
    a2 = 14/75
    a3 = 20/57
    a4 = (5m2 -5)/32m2
    a5 = 37/175
    a6 = 79/201
    a7 = 2
    a8 = 11/35
    a9 = 79/141
    a10 = (m2 -1)/32m2
    a11 = 47/210
    a12

    = 200/517

     

    Durbar ultimate load capacity –various sized plates

    Fixed on all four sides (encastré)

    The ultimate uniformly distributed load for various sizes of Durbar plates fixed on all four sides and stressed to 275N/mm2 can be determined by using the table. The values are based upon equations developed by C.C. Pounder and conform to the construction and fixing requirements in BS 4592-5 : 2006.  The values in the tables are theoretical; in-use performance may vary. This information should not be used without the advice of a qualified structural engineer. Users of this information should satisfy themselves that it is suitable for their purpose.

    Ultimate load capacity (kN/m2) for Durbar fixed on all four sides and stressed to 275N/mm2 

    Values obtained with plates secured to prevent uplift

    Thickness (t)   Ultimate distributed load (kN/m2) for length, L, (mm)
    (mm) Breadth, B, (mm) 600 800 1000 1200 1400 1600 1800 2000
    3 600  21.2  16.3  14.9  14.3  14.1  13.9  13.9  13.8
      800    10.7§  8.4§  7.5§  7.1§  6.9§  6.8§  6.7§
      1000      5.6§  4.6§  4.2§  3.9§  3.8§  3.7§
      1200        3.4§  2.9§  2.6§  2.5§  2.4§
      1400          2.3§  2.0§  1.8§  1.7§
    4.5 600  47.7 36.8 33.5  32.2  31.6  31.4  31.2  31.1 
      800    26.8 21.5  19.5  18.6  18.1  17.9  17.7 
      1000      17.2 14.2  12.9  12.2  11.8  11.6 
      1200        10.8 § 9.1 § 8.2 § 7.7 § 7.4 §
      1400          7.0 § 6.0 § 5.5 § 5.1 §
    6 600  84.8 65.4  59.5  57.3  56.2  55.7  55.5  55.3 
      800    47.7 38.3  34.7  33.1  32.2  31.7  31.5 
      1000      30.5 25.3  22.9  21.7  21.0  20.6 
      1200        21.2 18 16.3  15.4  14.9 
      1400          15.6 13.4  12.3  11.6
    8 600  150.8 116.2 105.9 101.8 100 99.1 98.6 98.3 
      800    84.8 68.1  61.7  58.8  57.3  56.4  56.0 
      1000      54.3 44.9  40.7  38.6  37.4  36.7 
      1200        37.7 31.9  29.0  27.4  26.5 
      1400          27.7 23.9  21.8  20.6 
    10 600  235.5 181.5  165.4  159.1  156.2  154.8  154.1  153.6 
      800    132.5 106.4  96.4  91.8  89.5  88.2  87.4 
      1000      84.8 70.2  63.7  60.3  58.4  57.3 
      1200        58.9 49.9  45.4  42.9  41.3 
      1400         43.3 37.3  34.1  32.2 
    12.5 600  368.0 283.6  258.4  248.6  244.1  241.9  240.7  240.0 
      800    207.0 166.2  150.7  143.5  139.8  137.8  136.6 
      1000      132.5 109.7  99.5  94.2  91.2  89.5 
      1200        92.0 77.9  70.9  67.0  64.6 
      1400          67.6 58.3  53.3  50.3 

    †. Stiffeners should be considered for spans in excess of 1100mm to avoid excessive deflections.

    §. Loads have been limited so that deflection ≤B/100 at serviceability, where serviceability is due to the imposed load only

     

     

    back to top

    Proven Slip Resistance

    Proven Slip Resistance

    For more than 50 years, Durbar® has been synonymous with slip-resistant patterned steel floor plate. Various tests have been conducted during this period to confirm the superior slip resistance performance of Durbar compared to any other floor plate in the market.

    The dense pattern of studs on Durbar creates a slip-resistant surface at all angles and allows plates to be used in any direction. Compared to some alternatives, Durbar has 10% more studs which are 23% deeper, giving class-leading slip resistance.

    In recent independent tests carried out on Durbar and a leading competitor’s product, genuine Durbar was consistently found to have the lowest slip potential, in both dry and wet conditions.

    Tests carried out according to BS EN 13036-4, BS 07976 and the UKSRG guidelines show both Durbar and the generic competitor product to have Low slip potential in the wet, but in the dry state only Durbar can be classified as having Extremely Low slip potential. In all cases, the results for Durbar were superior to the generic competitor product.

    Summary of results

    Item Average Value - Dry Test Potential for Slip  Average Value - Wet Test  Potential for Slip
    Generic `A` Teardrop Floor Plate 64 Low 42 Low
    Tata Steel Durbar® Floor Plate 73 Extremely Low 46 Low

    UK Slip Resistance Group Guidelines (issue 4, 2011)

    The below table represents the risk category for a reasonably active pedestrian between 18 and 60, walking in a straight line on a level surface.

    Pendulum Value Potential for Slip
    0-24 High
    25-35 Moderate
    36-64 Low
    65+ Extremely Low

    FAQs

    Frequently Asked Questions (FAQs)

     

    What is the fire resistance of Durbar?

    Durbar hot rolled steel floor plate is classed as non-combustible. When subjected to extreme heat, Durbar has distinct advantages over some other flooring materials. At temperatures where aluminium alloys have already begun to melt, Durbar steel floor plate will still be supporting design loads. The fire performance of an assembly is specific to the construction of that assembly and so we strongly recommend you check your fire rating with a qualified fire engineer.

     

    What is the slip resistance of Durbar?

    Durbar has been tested to BS 7976-2:2002 for slip resistance and found to have Extremely Low slip potential in the dry state and Low slip potential even when wet. The unique Durbar pattern ensures this optimised slip resistance and in comparison tests, competitors’ floor plate products display a lower slip resistance.

     

    Will galvanising and painting Durbar affect it’s characteristics?

    Independent testing, in both wet and dry conditions in accordance with BS7976-2 assessed as-supplied Durbar as extremely low slip when dry, and low slip when wet. Moreover, Durbar is self-draining.

    Galvanising and/or painting will alter the surface condition,  and thus the slip resistance – we suggest you  should consult the paint manufacturer for details of appropriate paint systems.

     

    Can Tata Steel provide calculations for my specific use case of Durbar?

    Durbar is stronger than ordinary mild steels, easily fabricated, and therefore well suited to performing a structural role efficiently. We provide load capacity tables for typical configurations of Durbar in the Design section of this web-page, which cover a range of representative cases. For specific use cases, we recommend that you consult an independent design engineer.

     

    Can I buy individual sheets of Durbar from Tata Steel?

    We manufacture Durbar in coil form and can supply both coil and cut sheet. We are the largest distributor in the UK of Durbar in a cut-sheet format. We supply Durbar sheet to an extensive range of local stockists that can provide product in appropriate sizes and quantities for specific end use requirements and projects

     
    Is Durbar a sustainable choice?

    Durbar is a structurally efficient choice for slip-resistant, hard-wearing and long-lasting flooring. Compared to some alternatives, less supporting structure is required. Durbar itself is 100% truly recyclable steel – indeed every sheet of Durbar includes a significant proportion of recycled steel.

    Durbar has been in use in structures for over 50 years and remains the benchmark in textured floorplate in the UK – the ability to match the pattern with existing material in use makes it excellent for prolonging the life of existing structures.