Aluminium Coil Weight Calculator

Aluminium Coil Weight Formula:

\[ W = \pi \times \left(\left(\frac{OD}{2}\right)^2 - \left(\frac{ID}{2}\right)^2\right) \times Width \times Density \]

Outer Diameter (OD):

Inner Diameter (ID):

Width:

Density:

kg/m³

Coil Weight (kg):

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1. What is an Aluminium Coil Weight Calculator?

Definition: This calculator estimates the weight of an aluminium coil based on its physical dimensions and material density.

Purpose: It helps manufacturers, engineers, and metal workers determine the weight of aluminium coils for material handling, transportation, and cost estimation.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ W = \pi \times \left(\left(\frac{OD}{2}\right)^2 - \left(\frac{ID}{2}\right)^2\right) \times Width \times Density \]

Where:

\( W \) — Weight of the coil (kg)
\( OD \) — Outer diameter of the coil (m)
\( ID \) — Inner diameter (core diameter) of the coil (m)
\( Width \) — Width of the coil (m)
\( Density \) — Density of aluminium (kg/m³, typically 2700)

Explanation: The formula calculates the cross-sectional area of the coil and multiplies by width and density to get total weight.

3. Importance of Coil Weight Calculation

Details: Accurate weight calculation is essential for crane selection, transportation planning, inventory management, and cost estimation in metal fabrication.

4. Using the Calculator

Tips: Enter all dimensions in meters. The default density is set to 2700 kg/m³ (standard for aluminium). Ensure OD > ID for valid calculation.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical density for aluminium?
A: Pure aluminium has a density of about 2700 kg/m³, but alloys may vary slightly (2600-2800 kg/m³).

Q2: How do I measure coil dimensions?
A: Measure OD and width with a tape measure. ID is typically the diameter of the core/mandrel.

Q3: Can this calculator be used for other metals?
A: Yes, just change the density value (e.g., 7850 kg/m³ for steel, 8960 kg/m³ for copper).

Q4: Why is the result in kilograms?
A: The calculation uses metric units (meters and kg/m³). Divide by 1000 for metric tons.

Q5: What if my coil isn't perfectly round?
A: This calculation assumes perfect cylindrical coils. For irregular shapes, consider adding a safety factor.