1. What is a Steel Coil Length Calculator?

Definition: This calculator estimates the length of a steel coil based on its weight, width, thickness, and material density.

Purpose: It helps metal fabricators, engineers, and manufacturers determine how much material they have in coil form.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( L \) — Length of steel coil (meters)
• \( W \) — Weight of the coil (kilograms)
• \( W_d \) — Width of the coil (meters)
• \( T \) — Thickness of the steel (meters)
• \( D \) — Density of steel (kg/m³, typically 7850)

Explanation: The weight is divided by the product of thickness, width, and density to determine the unrolled length.

3. Importance of Steel Coil Length Calculation

Details: Accurate length calculation helps in production planning, inventory management, and cost estimation for steel products.

4. Using the Calculator

Tips: Enter the coil weight in kg, width in meters, thickness in meters, and density (default 7850 kg/m³ for steel). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is steel density typically 7850 kg/m³?
A: This is the standard density for carbon steel, which accounts for about 90% of steel production.

Q2: How do I measure coil thickness accurately?
A: Use a micrometer at several points along the coil and take an average, as thickness can vary slightly.

Q3: Does this work for other metals?
A: Yes, but you'll need to adjust the density value (e.g., 2700 for aluminum, 8940 for copper).

Q4: What if my coil has a paper or plastic liner?
A: You'll need to subtract the liner weight from the total weight before calculation.

Q5: How precise is this calculation?
A: It's theoretically precise, but actual measurements may vary due to material inconsistencies and measurement tolerances.