Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

# Thermal Expansion - Superficial i.e. Area

## Superficial i.e area temperature expansion - online calculator.

The amount by which unit area of a material increases when the temperature is raised by one degree is called the coefficient of superficial (i.e. area) expansion. Superficial thermal expansion can be expressed as

dA = A0 γ (t1 - t0)                                 (1)

where

dA = change in area (m2)

A0 = initial area (m2)

γ = superficial expansion coefficient (m2/m2K)

t0 = initial temperature (oC)

t1 = final temperature (oC)

### Online Superficial Thermal Expansion Calculator

Change in area (dA): (m2)

Final Area (A1): (m2)

In general the superficial temperature coefficients can be approximated to

γ  ~= 2 α

where

α =  linear temperature expansion coefficient (m/m K, m/m oC)

#### Linear Temperature Coefficients - α - of some common metals

• aluminum : 0.000023 (m/m oC)
• steel: 0.000016 (m/m oC)
• copper: 0.000017 (m/m oC)

## Related Topics

• ### Thermodynamics

Work, heat and energy systems.

## Related Documents

• ### Linear Thermal Expansion

Online linear temperature expansion calculator.
• ### Liquids - Volumetric Expansion Coefficients

Volumetric - or cubical - expansion coefficients for common liquids.
• ### Metals - Temperature Expansion Coefficients

Thermal expansion coefficients metals.
• ### PVC, CPVC, Carbon Steel, Stainless Steel and Fiberglass Pipes - Thermal Expansion Diagrams

Thermal expansion of PVC, CPVC, Carbon and Stainless Steel and Fiberglass pipes.
• ### Volumetric (Cubic) Thermal Expansion

Volumetric temperature expansion calculator.

## Search

Search is the most efficient way to navigate the Engineering ToolBox.

## Engineering ToolBox - SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

## Citation

• The Engineering ToolBox (2008). Thermal Expansion - Superficial i.e. Area . [online] Available at: https://www.engineeringtoolbox.com/superficial-thermal-expansion-d_1380.html [Accessed Day Month Year].

Modify the access date according your visit.

8.21.8

.