-:Formula:-
Here is a simple formula to calculate the weight as follows.
Section Weight as per IS 1786
Item square /162 = kg/ mtr weight
For Example – calculation of 8 mm and 16 mm TMT BARS will be as follows :
8 X 8 / 162 = 0.395 kg/mtr weight
16 X16 / 162 = 1.58 kg/mtr weight
Section Weight as per IS 1786 :
Size of Bars
|
Kg / mtr
| ||
Minimum
|
Standard
|
Maximum
| |
8 mm
|
0.367
|
0.395
|
0.432
|
10 mm
|
0.574
|
0.617
|
0.66
|
12 mm
|
0.844
|
0.888
|
0.932
|
16 mm
|
1.501
|
1.58
|
1.659
|
20 mm
|
2.396
|
2.47
|
2.511
|
25 mm
|
3.735
|
3.85
|
3.966
|
28 mm
|
4.685
|
4.83
|
4.975
|
32 mm
|
6.121
|
6.31
|
6.499
|
TMT Bar-Bend Properties :
TMT Bar- ReBend Properties :
Chemical Composition :
Grade
|
C% (Max)
|
S% (Max)
|
P% (Max)
|
Mn% (Max)
|
Si% (Max)
|
Fe-415
|
0.25
|
0.055
|
0.055
|
0.055
|
0.3
|
Fe-500
|
0.25
|
0.05
|
0.05
|
0.06
|
0.3
|
Fe-500D
|
0.25
|
0.045
|
0.045
|
0.075
|
0.3
|
Mechanical Properties :
Properties
|
Fe-415 (%)
|
Fe-500 (%)
|
Fe-500 D (%)
|
Yield Stress, N/mm2
|
415
|
500
|
500
|
Tensile Strength
|
485
|
545
|
565
|
Elongation
|
14.5
|
12
|
16
|
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