Corus Strip Products UK

Durbar floor plate

Slip-resistant raised-pattern hot-rolled floor plate

Durbar floor plate

BenefitsThe raised pattern on Durbar creates a slip-resistant

surface at all angles and allows plates to be used in any

direction.

The spaces between the studs create a self-draining

surface, which is easy to clean. This characteristic

reduces corrosion and gives Durbar a long life.

Durbar is readily weldable by normal processes.

Corus offers world-class technical and design services

to help select appropriate grades.

The plant that manufactures Durbar is certified to

ISO/TS 16949 : 2002 by Lloyd’s Register Quality

Assurance Limited.

ApplicationsDurbar is the economical answer for stairs, bridges,

containers, mechanical handling equipment, and many

other applications.

Standards and gradesDurbar is available to EN 10025 : 1993 in grades S275,

S275JR, S355 and S355JR.

Consult Corus about the availability of grades not

shown above.

Mechanical propertiesThe mechanical properties of Durbar comply with

EN 10025 : 1993 and are shown in table 1. The values

shown for strength and elongation in table 1 are for test

pieces taken transverse to the rolling direction; those for

the impact test are for test pieces taken in the rolling

direction.

Chemical compositionThe chemical composition of Durbar complies with

EN 10025 : 1993 and is shown in table 2.

DimensionsCorus manufactures Durbar in standard widths, lengths

and thicknesses. Dimensions for coil are shown in table

3 and for cut lengths in table 4.

The thickness of Durbar is that of the plain plate,

exclusive of the raised pattern. The stud height varies

with the plate dimensions and steel grade, being

typically within the overall range of 1.5mm-2.2mm.

Figure 1 below shows the Durbar pattern and

approximate dimensions of the pattern.

WeightWeight per unit area is shown in table 5.

More InformationFor more information about this product, contact Corus

at the appropriate address on the back cover.

Durbar floor plateDurbar is hot-rolled structural steel floor plate that hasan evenly distributed, raised pattern, which is integralto the product.

27mm

27mm

27mm

9mm

Figure 1

Durbar floor plate

Table 1: Mechanical properties: Durbar

Grade ReL (N/mm2) Rm (N/mm2) A (%) Impact test

Min Min-max Min

L0 = 80mm Temp Min energy

3≤t<5 5≤t<7 7≤t<11 11≤t<12.5 °C J

S275 275 410-560 18 20 21 22 – –

S275JR 275 410-560 18 20 21 22 20 27

S355 355 490-630 18 20 21 22 – –

S355JR 355 490-630 18 20 21 22 20 27

Notes:1. Material thickness, t, is in millimetres.2. Impact properties of quality JR products are verified only when specified at the time of the enquiry and order.3. Impact strengths apply to thicknesses ≥6mm and are for standard test pieces only.

Table 2: Chemical composition: Durbar

Grade C Mn P S Si N1, 2 Nb

Max Max Max Max Max Max Min-max

S275 0.25 1.60 0.050 0.050 0.50 – –

S275JR 0.21 1.50 0.045 0.045 – 0.009 –

S355 0.23 1.60 0.050 0.050 0.50 – 0.003-0.100

S355JR 0.24 1.60 0.045 0.045 0.55 0.009 0.003-0.100

Notes:1. It is permissible to exceed the specified values provided that for each increase of 0.001% nitrogen the phosphorus

maximum content will be reduced by 0.005%; the nitrogen content of the ladle analysis, however, shall not be more than0.012%.

2. The maximum value for nitrogen does not apply if the chemical composition shows a minimum total aluminium content of0.020% or if sufficient other nitrogen-binding elements are present. The nitrogen-binding elements shall be mentioned inthe inspection document.

3. Values are in weight percentages.

Table 4: Dimensions: Durbar cut lengths

Standard thickness Length

S275/S275JR S355/S355JR

Min Max Min Max

3.00 1830 6000 – –

4.50 1500 9500 1500 9500

6.00 1500 9500 1500 9500

8.00 1500 13000 1500 13000

10.00 1500 13000 1500 13000

12.50 1500 13000 1500 13000

Note: Dimensions are in millimetres.

Table 3: Dimensions: Durbar coil

Standard thickness Standard widths

All grades

3.00 1000/1250

4.50 1000/1250/1500

6.00 1000/1250/1500

8.00 1000/1250/1500

10.00 1000/1250/1500

12.50 1000/1250/1500

Note: Dimensions are in millimetres.

Table 5: Weight per unit area

Thickness (mm) Weight (kg/m2)

3.0 24.9

4.5 36.9

6.0 48.7

8.0 64.4

10.0 80.1

12.5 99.7

www.corusgroup.com

Durbar is a trademark of Corus UK Limited.

Care has been taken to ensure that thisinformation is accurate, but Corus Group plc,including its subsidiaries, does not acceptresponsibility or liability for errors orinformation which is found to be misleading.

Copyright 2003 Corus UK Limited

Design: SEVEN www.sevencreative.co.uk

Commercial enquiriesCorus Strip Products UKPO Box 10NewportSouth WalesNP19 4XN

T: +44 (0)1633 290022F: +44 (0)1633 755064E: cspuk.marketing@corusgroup.comW: www.corusstripproducts.co.uk

English language version CSPUK07:1000:UK:09/2003

Technical enquiriesCustomer Technical ServicesCorus Strip Products UKPO Box 10NewportSouth WalesNP19 4XN

T: +44 (0)1633 755171F: +44 (0)1633 755177E: strip.enquiries@corusgroup.comW: www.corusstripproducts.co.uk