Sq Pipe Weight Calculator

Square Pipe Weight Calculator

Carbon Steel (7.85 g/cm³) Stainless Steel (8.00 g/cm³) Aluminum (2.70 g/cm³) Copper (8.96 g/cm³)

Total Weight:

0.00 kg

0.00 lbs

Weight per Meter: 0.00 kg/m

function calculatePipeWeight() { var side = parseFloat(document.getElementById('sideLength').value); var thick = parseFloat(document.getElementById('wallThickness').value); var len = parseFloat(document.getElementById('pipeLength').value); var density = parseFloat(document.getElementById('materialDensity').value); if (isNaN(side) || isNaN(thick) || isNaN(len) || side <= 0 || thick <= 0 || len = side) { alert("Wall thickness is too high for the given side length."); return; } // Calculation Logic for Square Tube Weight // Formula: Weight = Area * Length * Density // Area = Outer Area – Inner Area // Area = (Side^2) – (Side – 2*Thickness)^2 // Simplifies to: 4 * Thickness * (Side – Thickness) // Using mm for side/thick, meters for len, g/cm3 for density // Weight (kg) = [4 * T * (S – T) * L * Density] / 1000 var weightPerMeter = (4 * thick * (side – thick) * density) / 1000; var totalWeightKg = weightPerMeter * len; var totalWeightLb = totalWeightKg * 2.20462; document.getElementById('kgOutput').innerText = totalWeightKg.toFixed(2); document.getElementById('lbOutput').innerText = totalWeightLb.toFixed(2); document.getElementById('unitOutput').innerText = weightPerMeter.toFixed(3); document.getElementById('weightResult').style.display = 'block'; }

Calculating the weight of square steel tubing or hollow structural sections (HSS) is essential for structural engineering, logistics planning, and cost estimation. This square pipe weight calculator provides instant results based on dimensions and material type.

The Formula for Square Pipe Weight

The theoretical weight of a square pipe is determined by calculating the volume of the material and multiplying it by the material's density. The standard formula used by this tool is:

Weight (kg) = [4 × T × (S – T)] × L × Density / 1000

• S: Side Length (mm)
• T: Wall Thickness (mm)
• L: Total Length (meters)
• Density: Material density (e.g., 7.85 for Steel)

Example Calculation

Suppose you have a carbon steel square pipe with the following specifications:

• Side Length: 50 mm
• Wall Thickness: 3 mm
• Length: 6 meters

Step 1: Calculate the cross-sectional area factor: 4 × 3 × (50 – 3) = 12 × 47 = 564.

Step 2: Multiply by density (7.85 for steel) and divide by 1000: (564 × 7.85) / 1000 = 4.4274 kg/m.

Step 3: Multiply by total length: 4.4274 kg/m × 6m = 26.56 kg.

Common Material Densities

Material	Density (g/cm³)
Carbon Steel	7.85
Stainless Steel (304)	8.00
Aluminum	2.70
Copper	8.96

Why Accuracy Matters

In construction and fabrication, even small discrepancies in pipe weight can lead to significant issues:

1. Shipping Costs: Freight is often calculated by weight. Knowing the exact mass prevents overpaying.
2. Structural Integrity: Engineers must ensure that support structures can handle the dead load of the piping.
3. Material Procurement: Metal is sold by weight; accurate calculations ensure your quotes are precise.