Coil Weight Calculator Aluminum

Coil Weight Formula:

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

OD (Outer Diameter):

ID (Inner Diameter):

Width:

Density:

kg/m³

Coil Weight: kg

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1. What is an Aluminum Coil Weight Calculator?

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

Purpose: It helps manufacturers, engineers, and metal workers accurately determine the weight of aluminum coils for shipping, handling, and material planning.

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 aluminum (kg/m³, default 2700)

Explanation: The formula calculates the cross-sectional area of the coil annulus, multiplies by length (width) to get volume, then multiplies by density to get weight.

3. Importance of Accurate Coil Weight Calculation

Details: Proper weight estimation ensures correct material handling, transportation planning, and structural support requirements.

4. Using the Calculator

Tips: Enter the outer diameter (OD), inner diameter (ID), width (all in meters), and density (default 2700 kg/m³ for aluminum). All values must be > 0 (except ID can be 0 for solid coil).

5. Frequently Asked Questions (FAQ)

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

Q2: How do I measure OD and ID?
A: Measure across the widest point for OD and the core diameter for ID. Use consistent units (meters).

Q3: What if my coil has no core (ID=0)?
A: Enter 0 for ID to calculate weight for a solid aluminum disk.

Q4: Can this calculator be used for other metals?
A: Yes, simply change the density value to match your material (e.g., 7850 kg/m³ for steel).

Q5: How accurate is this calculation?
A: It provides theoretical weight. Actual weight may vary slightly due to material variations and coil imperfections.