What density is used for brass?

The default density is 8.50 g/cm³ (8,500 kg/m³), which covers common structural brass alloys such as CuZn30 (cartridge brass) and CuZn37 (yellow brass). You can enter a custom density for other alloys — for example, 8.44 g/cm³ for CuZn40 or 8.73 g/cm³ for CuZn10.

How is the I-beam cross-section area calculated?

The I-beam area uses the formula: Area = 2 × (flange width × flange thickness) + (web thickness × (height − 2 × flange thickness)). This accounts for both top and bottom flanges plus the web between them.

How is the rectangular beam area calculated?

For a solid rectangular beam the area is simply width × height. All material is assumed solid — use the I-beam type for hollow or flanged sections.

What units are supported?

Metric (millimeters for cross-section, meters for length, kilograms for weight) and imperial (inches for cross-section, feet for length, pounds for weight). Switch with the unit toggle and all labels update instantly.

Can I get the linear weight (kg/m)?

Yes. The results panel shows both total weight and linear weight per unit length, which is useful for ordering standard stock lengths or estimating distributed loads.

Why is brass much heavier than aluminum?

Brass (an alloy of copper and zinc) has a density of about 8.5 g/cm³, which is roughly 3.1 times denser than aluminum (2.7 g/cm³). A brass beam with the same dimensions as an aluminum beam will weigh approximately three times more.

Why does web thickness matter for I-beams?

The web is the vertical plate connecting the two flanges. Its thickness and height directly affect the cross-sectional area and therefore the weight. Thicker webs add significant mass, especially in longer beams.

Brass Beam Weight Calculator

Name: Brass Beam Weight Calculator
Availability: InStock
Author: Nham Vu

Enter beam type, flange, web, and length dimensions to instantly calculate the weight of a brass I-beam or rectangular beam using brass density (8.5 g/cm³).

Beam Dimensions

Units:

Beam type

Overall height (mm)

Flange width (mm)

Flange thickness (mm)

Web thickness (mm)

Beam length (m)

Density (g/cm³ — default 8.50 for CuZn30/CuZn37)

Cross-Section Diagram

Enter dimensions and click Calculate

Summary

Enter beam type, flange, web, and length dimensions to instantly calculate the weight of a brass I-beam or rectangular beam using brass density (8.5 g/cm³).

How it works

Select beam type: I-beam (H-section) or rectangular solid beam.
Enter the overall height and flange width of the beam.
For I-beams, also enter the flange thickness and web thickness.
Enter the total beam length.
Choose metric (mm/m/kg) or imperial (in/ft/lb) units.
Adjust the density field if you need a specific brass alloy (default: 8.50 g/cm³).
Click Calculate to see total weight, linear weight, cross-section area, and volume.

Use cases

Estimate shipping and handling weight for brass structural profiles.
Calculate material cost for machining, fabrication, and custom brass parts.
Verify supplier weight specifications against your own dimension measurements.
Plan structural load calculations for brass-framed equipment and instruments.
Compare I-beam versus rectangular beam options for a given weight budget.
Determine forklift or crane load limits before lifting brass stock.
Cross-check bill-of-materials weights for procurement and logistics.
Quick field estimation for marine, plumbing, and decorative brass applications.

Frequently Asked Questions

Related tools

Aluminum Beam Weight Aluminum Angle Weight Aluminum Flat Bar Weight

Last updated: 2026-05-23 · Reviewed by Nham Vu