Temperature Expansion Coefficients of some common Piping Materials

Expansion coefficients of some common materials used for pipes and tubes - aluminum, carbon steel, cast iron, PVC, HDPE and more

Expansion coefficients of some common materials used for calculating pipe temperature expansion of pipes and tubes can be found in the table below:

Material Expansion Coefficients
10-6 in/in oF 10-6 m/m oC
Aluminum 12.8 23.1
Carbon Steel 6.5 11.7
Cast Iron 5.9 10.6
Copper 9.3 16.8
Stainless Steel 9.9 17.8
ABS Acrylonitrile butadiene styrene 35.0 63.0
HDPE High density polyethylene 67.0 120.0
PE Polyethylene 83.0 150.0
CPVC Chlorinated polyvinyl chloride 44.0 79.0
PVC Polyvinyl chloride 28.0 50.4

Note! The high expansion coefficients for the plastic materials makes plastic piping and tubes extreme sensitive to change in temperature. Always pay attention to plastics were temperature varies.

pipes linear temperature expansion

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