BS4449 is another standard for deformed steel bars, which is also categorized according to European standards. These steel bars are manufactured through the hot rolling process, indicating their suitability for general purposes, such as common construction projects.
BS4449 is another standard for deformed steel bars, differentiated according to European standards. The steel bars falling under this standard are also hot rolled, making them suitable for general purposes, such as common construction projects. These deformed bars are available in sizes ranging from 12 mm to 30 mm in diameter, with common lengths of 9 m and 12 m. They are widely utilized in various applications including houses, bridges, roads, particularly in railways and other civil engineering projects.
Product Parameters
BS 4449:97 British Rebar Specifications
Rated
Diameter
Nominal Cross Section Area
Weight
EN To The Ribs (mm)
Longitudinal Ribs (mm)
Pitch / Step
mm
Ribs Tip Distance
mm
Kg / m
Tolerance
%
Height
Width
Height
Width
mm
m㎡
min.
max.
min.
max.
min.
max.
min.
max.
min.
max.
min.
max.
6
28.3
0.222
± 9
0.3
0.6
0.48
0.72
0.3
0.84
0.48
1.2
3,.0
4.8
1.5
2.3
8
50.3
0.395
± 6.5
0.4
0.8
0.64
0.96
0.4
0.84
0.64
1.6
4.0
6.4
2.0
3.1
10
78.5
0.616
0.5
1.0
0.8
1.2
0.5
0.84
0.8
2.0
5.0
8.0
2.5
3.9
12
113.1
0.888
± 4.5
0.6
1.2
0.96
1.44
0.6
0.84
0.96
2.4
6.0
9.6
3.0
4.7
16
201.1
1.579
0.8
1.6
1.28
1.92
0.8
0.84
1.28
3.2
8.0
12.8
4.0
6.2
20
314.2
2.466
1.0
2.0
1.6
2.4
1.0
0.84
1.6
4.0
10.0
16.0
5.0
7.8
25
490.9
3.854
1.25
2.5
2.0
3.0
1.25
0.84
2.0
5.0
12.5
20.0
6.2
9.8
32
804.2
6.313
1.60
3.2
2.56
3.84
1.60
0.84
2.56
6.4
16.0
25.6
8.0
12.5
40
1256.6
9.864
2.0
4.0
3.2
4.8
2.0
0.84
3.2
8.0
20.0
32.0
10.0
15.7
50
1963.5
15.413
2.5
5.0
4.0
6.0
2.5
0.84
4.0
10.0
25.0
40.0
12.5
19.6
BS 4449:97 Steel Rebar Mechanical Properties
Quality
Akma N / mm2<
Akma / Pull Rate N/mm2
Elongation Elasticity
Total max. % AGT
min.
min.
min.
min.
GR 250
250
Akma x 1.15
22
–
GR 460 A
460
Akma x 1.05
12
2.5
GR 460 B
460
Akma x 1.08
14
5
BS 4449:97 Steel Rebar Chemical Properties
Element
GR 250 % max.
GR 460 A / B % max.
Ribs and Marking Method
Casting
Product
Casting
Product
C
0.25
0.27
0.25
0.27
P
0.060
0.065
0.050
0.055
S
0.060
0.065
0.050
0.055
N
0.012
0.013
0.012
0.013
CE
0.42
0.45
0.51
0.54
Mn Cr+Mo+V Ni+Cu
CE = C + ————- + ——————- + —————–
6 5 15
Scope of Application
Widely used in houses, bridges, roads, especially railways and other civil engineering.
Angle Steel
Channel Steel
Universal Beam (l-Beam)
H-Beam Steel
Galvalume Steel Coil
Galvalume Steel Sheet
Galvanized Steel Sheet
Color Coated Plate
Stainless Steel Bar
Stainless Steel Pipe
Steel Bar
Wire Rope
Carbon Steel Pipe
Carbon Steel Plate
Aluminum Plate
Aluminum Coil
Aluminum Pipe
Aluminum Bar
Magnesium Ingot
Fasteners
