What formula is used to calculate titanium hexagon bar weight?

The cross-section area of a regular hexagon is A = 0.86603 × AF², where AF is the across-flats distance in meters. Weight = A × Length × Density. This simplifies to W = 0.86603 × AF² × L × ρ.

What is the across-flats (AF) dimension?

The across-flats (AF) size is the distance measured between two parallel flat faces of the hexagon bar — the most common way hex bar stock is specified. It equals the wrench size for nuts and bolts of the same profile.

What is the density of titanium?

Commercially pure titanium (Grade 1) has a density of approximately 4510 kg/m³. The widely used Ti-6Al-4V (Grade 5) alloy is 4430 kg/m³ due to the aluminum and vanadium content.

Does this support both metric and imperial units?

Yes. Across-flats size can be entered in mm, cm, or inches. Length can be entered in meters, mm, feet, or inches. All values are converted internally before calculation.

Can I calculate the total weight for multiple bars?

Yes. Enter the number of bars in the Quantity field and the calculator will show both the per-bar weight and the total weight for all bars combined.

How is a hexagon bar different from a round bar of the same nominal size?

A hexagon bar has a cross-section area of 0.86603 × AF², while a round bar of the same diameter has an area of (π/4) × D² ≈ 0.7854 × D². A hex bar is therefore approximately 10% heavier than a round bar of the same nominal size.

Titanium Hexagon Bar Weight Calculator

Enter across-flats size and length to instantly calculate titanium hexagon bar weight in kg and lb.

Bar Dimensions

Across-Flats (AF) Size

Distance between two parallel flat faces.

Length

Titanium Grade

Quantity (bars)

Formula Reference

W = 0.86603 × AF² × L × ρ

Where AF = across-flats (m), L = length (m), ρ = titanium grade density (kg/m³), W = weight (kg). Derived from hexagon area = (3√3 / 2) × s² with s = AF / √3.

Enter dimensions on the left and click Calculate.

Titanium Grade Densities

Grade	Designation / Use	kg/m³	lb/in³
Grade 1	CP — Highest Formability	4510	0.1629
Grade 2	CP — General Purpose	4507	0.1628
Grade 3	CP — Medium Strength	4480	0.1618
Grade 4	CP — Highest Strength CP	4510	0.1629
Grade 5	Ti-6Al-4V — Aerospace	4430	0.1600
Grade 7	Ti-0.2Pd — Corrosion Resistant	4480	0.1618
Grade 23	Ti-6Al-4V ELI — Medical	4420	0.1596

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Summary

Enter across-flats size and length to instantly calculate titanium hexagon bar weight in kg and lb.

How it works

Enter the across-flats (AF) size of the hexagon bar in millimeters, inches, or centimeters.
Enter the bar length in meters, millimeters, feet, or inches.
Select the titanium grade from the dropdown.
Optionally enter a quantity for multiple bars.
The calculator applies W = 0.86603 × AF² × L × ρ and shows weight in kg and lb.
Click Copy to save the result to your clipboard.

Use cases

Estimating titanium hex bar material weight for aerospace and medical device projects.
Calculating freight and shipping weight for titanium hexagon bar orders.
Comparing titanium grade weights to optimize hex stock selection.
Preparing bill of materials (BOM) for CNC machining and precision manufacturing.
Verifying load limits on handling and lifting equipment for dense alloys.
Cost estimation for titanium hex stock purchases priced by weight.
Material planning for fastener, bolt, and turned-part production.
Structural calculations for marine and chemical processing applications.

Frequently Asked Questions

Last updated: 2026-09-22 · Reviewed by Nham Vu