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.
Applications
- Bridges
- Cladding and protective barriers
- Commercial vehicles
- Containers
- Lifts
- Offshore installations
- Shipbuilding
- Stairs and walkways
- Steps and safety platforms
Relationship with standards
Durbar meets the mechanical and chemical properties of ASTM A1011 and A1018 structural grades.
Durbar meets the floor plate specification ASTM A786.
Properties
Mechanical properties
The mechanical properties of Durbar comply with ASTM A1011 or ASTM A1018 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.
|
ASTM A1011-15
ASTM A1018-16
|
Min. yield strength
|
Tensile strength
|
Min. elongation after fracture A (%)
|
|
Grade
|
ksi
|
ksi
|
L0 = 2 inch
|
|
|
|
|
t < 0.064
|
0.064 ≤ t < 0.097
|
0.097 ≤ t < 0.23
|
0.23 ≤ t
|
|
SS Grade 33
|
33
|
52
|
18
|
22
|
23
|
22
|
|
SS Grade 40
|
40
|
55
|
15
|
20
|
21
|
19
|
|
SS Grade 50
|
50
|
65
|
11
|
16
|
17
|
-
|
t - material thickness in mm.
Chemical composition
The chemical composition of Durbar complies with ASTM A1011 and A1018 and is shown in the table below.
|
|
C
|
Mn
|
P
|
S
|
Si
|
N
|
|
Grade
|
Max.
|
Max.
|
Max.
|
Max.
|
Max.
|
Max.
|
|
SS Grade 33
|
0.25
|
0.90
|
0.035
|
0.04
|
–
|
-
|
|
SS Grade 40
|
0.25
|
0.90
|
0.035
|
0.04
|
–
|
-
|
|
SS Grade 50
|
0.25
|
1.35
|
0.035
|
0.04
|
–
|
-
|
All values are in weight %.
Dimensions
Dimensional capability for non pickled steel.
Dimensions in inch.
|
Thickness
|
Standard Width
|
|
|
SS Grade 33
|
SS Grade 40
|
SS Grade 50
|
|
0.118
|
49
|
49
|
49
|
|
0.177
|
59
|
59
|
59
|
|
0.236
|
59
|
59
|
-
|
|
0.315
|
59
|
59
|
-
|
|
0.394
|
59
|
59
|
-
|
|
0.492
|
59
|
59
|
-
|
Widths of 39 inch (minimum) and 72 inch are also available – please contact us.
Please also consult us on any other dimensions or grades.
Tolerances on thickness
Tolerances for wide strip and slit wide strip comply with standard ASTM A568: 2007 and A635: 2007 (click here).
Tighter tolerances are available, please contact us. Tolerances are over, no under.
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