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Everything You Need To Know About Steel Rebar Weight Chart

Steel Rebar

The steel rods are widely used in construction to reinforce concrete structures. Before you start planning your project you should know about the steel rod weight. You should know how to calculate the unit weight of a steel rod to make informed decisions on procurement.

There are different types of steel rebar such as TMT rebars, mild steel bars, deformed bars and reinforced bars. Different types of bars have their unique properties. You need to understand the steel weight during the planning stage and buy material.

A steel weight chart can be a useful reference tool. Knowing the steel bar weight in kilograms helps construction professionals in allocating resources and estimating costs. The TMT bars are available in different sizes and the weight varies as per size.

TMT bar weight chart 

Diameter Weight of a single bar Unit weight of steel per meter

8 mm 4.74 kg 0.400 kg

10 mm 7.4 kg 0.618 kg

12 mm 10.57 kg 0.890 kg

16 mm 18.96 kg 1.59 kg

20 mm 29.63 kg 2.47 kg

25 mm 46.30 kg 3.86 kg

Unit weight of bars

The unit weight of the bar is the weight per unit length of the bar. The unit weight of the bar is given in units kg/m. The bars can be of circular or rectangular cross-section. The formula to calculate the unit weight of round bars with circular cross-section is as follows:

Weight = Volume x Density

  • The volume can be derived from the bar length and the cross-section area. 
  • The cross-section area of the bar can be derived using the formula πr2 where r is the radius of the bar.
  • The density of the bar is 7850 kg/m3
  • The unit weight of the bar is calculated in kilograms.

When steel rods are used in construction you have to consider factors like load bearing, durability and stability. Calculating the weight of steel helps the engineers to estimate how much and how many bars are required to fulfill the load-bearing capacity and maintain structural integrity.

The TMT bars are available in different grades such as Fe 415, Fe 415 D, Fe 415 S, Fe 500, Fe 500 D, Fe 500 S, Fe550 and Fe 550 D. In this, the word ‘Fe’ stands for iron which is the material used to make these bars and the number states the bar’s yield strength. 

The TMT bars have unique properties like greater elongation, uniform stress-bearing capacity, unbeatable ductility and superior bonding with concrete. Under heavy loads, the bars can stretch and return to their original shape and size. The bars have a uniform diameter which allows them to bear heavier loads.

The bars are ductile which means they bend and not break in the event of an earthquake. TMT bars can be used for construction in areas prone to seismic activities. The bars have a ribbed surface which provides a superior bonding with concrete. The structures remain unbreakable for years.

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