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Project Bin

Item Qty Weight
Total Project Weight: 0.00 kg
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About

In engineering and fabrication, accurately estimating material weight is crucial for logistics, structural support calculations, and cost estimation. Raw steel is sold by weight, not just dimensions. A miscalculation here can lead to overloaded transport vehicles or significant budget overruns.

This tool provides a precise weight calculation for common stock shapes including plates, round bars, and tubes. Unlike generic calculators, it includes a material library for Stainless Steel, Aluminum, and Brass, accounting for the specific density variations of each alloy. The integrated "Project Bin" allows you to add multiple distinct cuts to a list, simulating a complete purchase order or bill of materials.

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Formulas

Weight is derived from volume multiplied by the material's density.

General Formula:
Mass = Volume × Density

Plate Volume:
V = Length × Width × Thickness

Round Bar Volume:
V = π × r2 × Length

Hollow Tube Volume:
V = π × (R2 r2) × Length

Reference Data

MaterialDensity (g/cm3)Density (lb/in3)Common Usage
Mild Steel7.850.284Structural beams, plates
Stainless Steel 3047.930.286Food processing, tanks
Aluminum 60612.700.098Aerospace, frames
Brass8.730.315Fittings, decoration
Copper8.960.324Electrical, plumbing
Cast Iron7.200.260Engine blocks, cookware

Frequently Asked Questions

No. The calculation represents the theoretical net weight of the finished shape. It does not account for the kerf (material lost during cutting) or scrap ends.
Stainless steel contains alloying elements like Chromium and Nickel, which have different atomic masses, resulting in a slightly higher density (approx 7.93 g/cm³) compared to standard Carbon Steel (7.85 g/cm³).
Yes. Select the "Round Tube" option. You will need to provide the Outer Diameter (OD) and the Wall Thickness. The tool calculates the volume of the metal shell.