The support and strength of the construction structures mainly come from two materials- steel and concrete. The reinforcement of steel in the concrete structure improves the tensile strength and durability of the concrete structure. Steel bar reinforcing plays a crucial role in avoiding long-term issues.
Steel bars can have different diameters, such as 6mm, 12mm, 10mm, 8mm, 16mm, 20mm, 25mm, 28mm, 32mm, 36mm, 40mm, 45mm, and 50mm. Depending on the requirement of your construction structure, you will require steel bars with specific diameters. As the diameter of the steel bars varies, the weight also varies. For instance, the rod weight per meter for a 6mm steel is different from a 20mm steel bar. Knowing the rod weight per meter: 12mm, 10mm, 8mm, 16mm, 20mm & 25mm steel bar will help you meet the requirements of your construction structure.
How to Calculate the Rod Weight per Meterfor a Specific Steel Bar?
Calculation for Steel Round Bar:
Weight = Volume × Density
= (Cross-sectional Area × Length) × Density
= (π×Radius2 × Length) ×Density
= (π×Diameter2 × Length)/4 ×Density
= (π×Diameter2 × Length × Density)/4
= π D2×L×ρ [ where π=3.14159 (approximately) and the density (ρ) of the bars is approximately 7850 kg/m³, D is the diameter of a specific steel bar, L is the steel bar’s length]
Therefore, the rod weight per meter for a steel round bar = weight/ Length
= π D2×L×ρ/ L = π D2×ρ
Calculation for Steel Square Bar:
Weight = Volume × Density
= (Area × Length) × Density
= (Diameter2 × Length) ×Density
=D2×L× ρ [Where D represents the sides of the square, L is the length of the bar, and ρ is the bar’s density].
Therefore, the rod weight per meter for a steel square bar = weight/ Length
= D2×L×ρ/ L = D2×ρ
Rod Weight per Meter: 12mm, 10mm, 8mm, 16mm, 20mm & 25mm Steel Bar
The rod weight per meter indicates the weight of the steel bar per unit length.
Therefore, the rod weight per meter = the total weight of the steel bar/ length
= W/L [ Where W= Total Weight & L= Length]
Typically, the weight of a 6mm steel bar is approximately 0.222 Kg per meter.
The rod weight per meter: 12mm, 10mm, 8mm, 16mm, 20mm & 25 mm steel bars are respectively 0.89 Kg/m, 0.617 Kg/m, 0.395 Kg/m, 1.58 Kg/m, 2.47 Kg/m, and 3.87 Kg/m.
Let’s take a look at the table below to understand the rod weight per meter for steel bars with different sizes-
| Size of the Steel Bar (mm) | Rod Weight per Meter (Kg/m) | Length (m) |
| 6 mm | 0.222 Kg/m | 1 m |
| 8 mm | 0.395 Kg/m | 1 m |
| 10 mm | 0.617 Kg/m | 1 m |
| 12 mm | 0.889 Kg/m | 1 m |
| 16 mm | 1.58 Kg/m | 1 m |
| 20 mm | 2.469 Kg/m | 1 m |
| 25 mm | 3.858 Kg/m | 1 m |
| 28 mm | 4.84 Kg/m | 1 m |
| 32 mm | 6.321 Kg/m | 1 m |
| 36 mm | 7.99 Kg/m | 1 m |
| 40 mm | 9.877 Kg/m | 1 m |
| 45 mm | 12.49 Kg/m | 1 m |
| 50 mm | 15.41 Kg/m | 1 m |
Rod Weight per Meter: Different Types of Steel Bars
Depending on the shape, there are two commonly used types of steel bars, such as Round steel bars and Square steel bars. The rod weight per meter for a round steel bar is different from a square steel bar.
The table below presents the rod weight per meter for these two types of steel bars with different sizes-
| Diameter of the Steel Bar (mm) | Rod Weight per Meter (Kg/m) | |
| Round Steel Bar | Square Steel Bar | |
| 6 mm | 0.222 Kg/m | 0.28 Kg/m |
| 8 mm | 0.395 Kg/m | 0.50 Kg/m |
| 10 mm | 0.617 Kg/m | 0.78 Kg/m |
| 12 mm | 0.889 Kg/m | 1.13 Kg/m |
| 16 mm | 1.58 Kg/m | 2.01 Kg/m |
| 20 mm | 2.469 Kg/m | 3.14 Kg/m |
| 25 mm | 3.858 Kg/m | 4.91 Kg/m |
| 28 mm | 4.84 Kg/m | 6.15 Kg/m |
| 32 mm | 6.321 Kg/m | 8.04 Kg/m |
| 36mm | 7.99 Kg/m | 10.17 Kg/m |
| 40 mm | 9.877 Kg/m | 12.56 Kg/m |
| 45 mm | 12.49 Kg/m | 15.90 Kg/m |
| 50 mm | 15.41 Kg/m | 19.62 Kg/m |
Conclusion
This article demonstrates the rod weight per meter: 12mm, 10mm, 8mm, 16mm, 20mm & 25mm steel bar. We have also explained the formula to determine the total weight of a steel bar and the rod weight per meter for steel bars with different sizes. In total, we have mentioned the rod weight per meter for thirteen different-sized steel bars, such as 6 mm, 8 mm, 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 28 mm, 32 mm, 36 mm, 40 mm, 45 mm, and 50 mm. Finally, we have tabulated the rod weight per meter for the round steel bars and square steel bars with different sizes.
