STANDARD WEIGHT OF 1 METER OF TMT STEEL BAR

Steel weight calculation

Standard weight of steel bars in KG/Meter is calculated by using this formula

(D)^2/162

EX:- The weight of 8 mm bar of 1 meter length is 

(8X8)/162 = 0.39 KG/Meter

similarly the weight of bars as follows:

STANDARD WEIGHT OF 1 METER STEEL BAR:

Bar Diameter	Weight /Meter
6	0.22 kg/m
8	0.39 kg/m
10	0.62 kg/m
12	0.88 kg/m
16	1.58 kg/m
18	2 kg/m
20	2.47 kg/m
24	3.55 kg/m

Note:

Length of TMT Steel rod will be 12 meter (or) 40 feet.

Weight Tolerance:

· 8mm and 10mm: ± 7%

· 12mm to 16mm: ± 5%

· 20mm to 32mm: ± 3%

Tolerance is given with adherence to IS:1786-2008 standard law.

TMT bars per bundle: 

TMT SIZE (mm)	RODS PER BUNDLE
6	20 No / Length
8	10 No / Length
10	8 No / Length
12	5 No / Length
16	3 No / Length

UNIT WEIGHT OF STEEL BAR PER METER

Diameter of bar	Weight (kg/m)	Weight (kg/ft)
6 mm	0.22 kg/m	0.068 kg/ft
8 mm	0.395 kg/m	0.12 kg/ft
10 mm	0.616 kg/m	0.19 kg/ft
12 mm	0.88 kg/m	0.27 kg/ft
16 mm	1.578 kg/m	0.48 kg/ft
20 mm	2.466 kg/m	0.75 kg/ft
25 mm	3.853 kg/m	1.172 kg/ft

 By using the formula D²/162 we calculate the unit weight of steel bar per meter

 By using the formula D²/533 we calculate the unit weight of steel bar per meter

Note:

Length of TMT Steel rod will be 12 meter (or) 40 feet.

What Is Unit Weight?

Unit weight of any substance is defined as the ratio of mass or weight per unit volume. It is usually measured in gm/cm, lb/ft,  or, kg/cm or kg/m etc.

The unit weight of materials varies depending on their composition & properties of ingredients. It gives an idea about the weight or lightness of the materials.

What Is Unit Weight of Steel?

The density of steel is around 7850 kg/m³ (or) 7.85 g/cm³ (or) 490 lbs/ft³ (or) 13231 lbs/yd³.

The various steel diameters used in construction are 8 mm, 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 32 mm and 40 mm.

The Formula Used To Calculate Weight of Steel

The formula used to calculate the unit weight of steel bars is D²/162.                 Where, D = Diameter of steel bars, 162 is a constant value.

Derivation of formula for calculating unit weight of steel