What formula is used?

Cross-sectional area = Side² − (Side − 2 × Wall)². Weight = Area × Length × Density, where all dimensions are in meters and density is 8908 kg/m³ (nickel). The inner side equals the outer side minus twice the wall thickness.

What nickel density does this calculator use?

A density of 8908 kg/m³ is used, which is the standard value for commercially pure nickel (Nickel 200 and Nickel 201). Nickel alloys such as Inconel or Monel have slightly different densities depending on their composition.

What is the difference between side size and wall thickness?

Side size is the outer dimension of one side of the square tube. Wall thickness is how thick the tube wall is. The inner side equals Side minus twice the wall thickness. The calculator shows an error if the wall is too thick for the given side size.

Which units are supported?

Side size and wall thickness accept mm, cm, or inches. Length accepts mm, cm, m, inches, or feet. All values are converted to meters before the calculation runs.

Why must the side size be greater than 2 × wall thickness?

If the wall thickness is equal to or greater than half the side size, the inner dimension would be zero or negative, which is physically impossible for a hollow tube. The calculator validates this and shows an error.

Is nickel heavier than steel?

Nickel (8908 kg/m³) is slightly denser than carbon steel (7850 kg/m³) and comparable to stainless steel (7900–8000 kg/m³). This means a nickel square tube of the same dimensions will weigh approximately 12% more than an equivalent carbon steel tube.

Nickel Square Tube Weight Calculator

Name: Nickel Square Tube Weight Calculator
Availability: InStock
Author: Nham Vu

Enter outer side size, wall thickness, and length to get the weight of a nickel alloy square tube in kg and lb instantly.

Tube Dimensions

Outer Side Size

Wall Thickness

Length

Formula Reference

W = (S² − (S − 2t)²) × L × ρ

Where S = outer side size (m), t = wall thickness (m), L = length (m), ρ = 8908 kg/m³ (nickel density), W = weight (kg).

Enter tube dimensions on the left and click Calculate.

Copied!

Summary

Enter outer side size, wall thickness, and length to get the weight of a nickel alloy square tube in kg and lb instantly.

How it works

Enter the outer side size of the square tube and choose a unit (mm, cm, in).
Enter the wall thickness and choose a unit (mm, cm, in).
Enter the tube length and choose a unit (mm, cm, m, in, ft).
Click Calculate — the inner side is derived automatically as Inner = Side − 2 × Wall.
Weight is displayed in kilograms and pounds using the standard nickel density of 8908 kg/m³.

Use cases

Estimating material weight for nickel alloy square tube framing and structural projects.
Calculating shipping and freight weight for nickel square tube orders.
Preparing a bill of materials for fabrication or purchasing of nickel components.
Comparing wall thicknesses to balance strength and weight in high-temperature applications.
Verifying load requirements before installing nickel tubing in chemical processing plants.
Quick field estimation of nickel square tube weight without manual calculation.
Supporting procurement decisions for corrosion-resistant nickel tubing.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu