REINFORCING BAR

Since 2014, Shattaf Steel Manufactures Reinforcing Bar with the size range of 8mm to 32mm.

Being Regionally and Internationally Certified, We have been able to contribute into the creations of projects throughout UAE and the MENA region. The Rebar Mill has the capacity to produce 100,000 MT per year.

Manufacturing Process

Step Process Description
1 Loading The billets are loaded on the reheat furnace charging table and charged inside the reheat furnace to achieve rolling temperature.
2 Re heating Furnace / Continuous casting- hot direct rolling (CC-HDR) In the reheat furnace, the Billets are reheated up to 1,050 to 1,150 °C so that they become soft enough to be lengthened to the desired thickness and length. Shattaf Steel established a continuous casting-hot charging line to reduce costs, adopted a conveyer table in which the Billets can be fed to roughing stands to increasing efficiency
3 Rolling The Billets extracted from the reheat furnace or Continuous casting – hot charging line is passed through about 13 stands comprising of roughing stands, intermediate stands and finishing stands to form shapes of steel bars.
4 Quenching The Rebar passes through Tempcore quenching Process, a patented quenching system. Quenching is mechanical process in order to achieve mechanical properties (Tensile strength, yield strength and elongation) as per the standard.
5 Cooling On the cooling bed, the Billets passed through the rolling mill are cooled down. The walking beam cooling bed system allows them to cool down by air flow created on all sides and move to the cold share machine.
6 Finishing The rebar transported from the cooling bed are cut to the lengths desired by customers.
7 Packing The commercial rebars are counted precisely to form uniform bundle. The packing of rebar bundle strapped by steel wire with a product tag attached.

Product Specification

Size Range 8mm To 32mm
Lengths 6 , 9 , 12 Or 18 Meters (As per Customer requirement)
Packaging Bundles
Weight of Bundle – 1 or 2 Mt
Diameter of Bundle – 150-300mm (Varies according to the bar diameter)
Straps per Bundle – Minimum 3
Chemical Composition % Max
Standard / Grade BS 4449:1997
Gr 460B
BS 4449:2005
Gr B500B 
KWS GSO ISO
6935-2/2012
Gr B500BWR
C 0.25 0.22 0.22
Mn 1.60
S 0.05 0.05 0.05
P 0.05 0.05 0.05
Si 0.60
Cu 0.80
N 0.012 0.012 0.012
Ceq 0.51 0.50 0.50
Mechanical Properties
Standard / Grade BS 4449:1997
Gr 460B
BS 4449:2005
Gr B500B
KWS GSO ISO
6935-2/2012
Gr B500BWR
Yield Strength N/mm²(min) 460 500 500
Tensile Strength N/mm²(min) 1.08YS 1.08YS 1.08YS
Elongation % (min) 14 - 14
Total Elongation at Max Force (Agt) % (min) 5 5 5
Gauge Length (mm) 5d - 5d
Bending Test
Standard / Grade Angle(°Degree) Bending Mandrel Dia.(mm)
BS 4449:1997
Gr 460B
BS 4449:2005
Gr B500B
KWS GSO ISO
6935-2/2012
Gr B500BWR
180° ≤ 16mm – 3d
> 16 to 32mm – 6d
Re-Bending Test
Standard / Grade Angle(°Degree) Rebending Mandrel Dia.(mm)
BS 4449:1997
Gr 460B
45°-23° ≤ 16mm – 5d
> 16mm – 7d
BS 4449:2005
Gr B500B
90°-20° ≤ 16mm – 4d
> 16mm – 7d
KWS GSO ISO
6935-2/2012
Gr B500BWR
90°-20° ≤ 16mm – 5d
> 16 to 25mm – 8d
> 25mm – 10d

Standard Bar Count (12m Length)

Nominal Diameter in mm Unit Mass kg/m Nominal Mass kg/pc Pieces/Bundle
8 0.395 4.74 422
10 0.617 7.40 270
12 0.888 10.66 188
14 1.210 14.52 138
16 1.580 18.96 106
18 2.000 24.00 84
20 2.470 29.64 68
22 2.980 35.76 56
25 3.850 46.20 44
28 4.830 57.96 34
32 6.310 75.72 26

Permissible Deviation From Mass

Standard / Grade Dia. (mm) Dev. (%)
BS 4449:1997
Gr 460B
8 – 10
>8
± 6.50
± 4.50
BS 4449:2005
Gr B500B
≤8
>8
± 6.50
± 4.50
KWS GSO ISO
6935-2/2012
Gr B500BWR
≤8
10 & 12
14 to 22
25 to 32
± 8.00
± 6.00
± 5.00
± 4.00

Permissible Deviation From Length

Standard / Grade in (m) Dev. (mm)
BS 4449:1997
Gr 460B
6 + 40 / – 0
BS 4449:2005
Gr B500B
9, 12, 18 + 40 / – 0
Download Specification
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