volume of steel multiplied by7850= wt of steel in kgs.
Please note that wt of 1 Cum steel is 7850 kg
Volume of steel bar can be calculated = cross-sectional area of bar X length
cross-sectional area of Bar= pie x d X d/4 (where d is diameter of bar)
Formula for steel bar weight per meter = D2/162 where D is diameter of bar
2.9876 kg/m is the weight of steel bar of 22 mm dia..and you use formula for other bars as d*d/162 Where d is a diameter of bar in mm.
formula calculation of steel round bar > Area (square metres) of cross section * 7850 = kilograms per metre length. For other lengths, multiply answer by length in metres.
To calculate the area of a 20mm steel bar, you can use the formula for the area of a circle, which is ( A = \pi r^2 ). First, find the radius by dividing the diameter (20mm) by 2, giving you a radius of 10mm. Then, substitute the radius into the formula: ( A = \pi (10 \text{ mm})^2 ), which results in an area of approximately 314.16 mm².
to calculate the weight of diffrent dia bars is d2/162 D=dia of bar , and multiply into 2 times then divide it by 162
Formula for steel bar weight per meter = D2/162 where D is diameter of bar
The formula to calculate the area of a steel bar is A = πr^2, where A represents the area and r is the radius of the steel bar. This formula assumes that the steel bar is circular in shape. If the steel bar is a different shape, such as rectangular or square, the formula to calculate the area would be different based on the dimensions of the bar.
DxD/162 this is the formula for finding unit weight of steel
If the bar is circular then it is: pi*radius square
d*d/162
2.9876 kg/m is the weight of steel bar of 22 mm dia..and you use formula for other bars as d*d/162 Where d is a diameter of bar in mm.
The formula to calculate the weight of a Teflon round bar is weight = volume x density. First, calculate the volume of the round bar using the formula for the volume of a cylinder: volume = π x (radius)^2 x length. Next, multiply the volume by the density of Teflon to find the weight of the round bar.
formula calculation of steel round bar > Area (square metres) of cross section * 7850 = kilograms per metre length. For other lengths, multiply answer by length in metres.
The weight of a round stainless steel (SS) bar can be calculated using the formula: [ \text{Weight (kg)} = \frac{\pi \times (d/2)^2 \times L \times \rho}{1000} ] where ( d ) is the diameter of the bar in millimeters, ( L ) is the length in meters, and ( \rho ) is the density of stainless steel (approximately 7.9 g/cm³ or 7900 kg/m³). This formula accounts for the volume of the bar and its density to determine its weight.
The standard formula used to calculate the weight of a TMT bar is: 👉 Weight (kg per meter) = D² / 162 Where: D = diameter of the bar in millimeters 🔹 Simple Example For 10 mm bar → (10 × 10) / 162 = 0.617 kg/m For 12 mm bar → (12 × 12) / 162 = 0.888 kg/m 🔹 Why this formula works This formula comes from the density of steel (7850 kg/m³) and the circular cross-section of the bar. It’s a simplified version that’s widely used on sites for quick calculations. 🔹 Practical usage From what I’ve seen on sites, most people: Either remember common weights Or quickly use this formula for checking It’s especially useful when you want to: Verify supplier weight Estimate total steel requirement Avoid underweight material issues 🔹 Quick tip Even if you don’t calculate every time, knowing this formula helps you cross-check material during delivery, which can save a lot of trouble later.
weight and length of steel bar ~6
To calculate the weight per meter of a 30x3 mm mild steel (MS) flat bar, you can use the formula: weight (kg/m) = (width x thickness x density) / 1000. The density of mild steel is approximately 7850 kg/m³. For a 30x3 mm flat bar, the weight per meter would be approximately 0.706 kg/m.