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# Copper, Ductile Iron, Carbon Steel, Stainless Steel and Aluminum Piping Materials - Temperature Expansion

## Thermal expansion of typical piping materials.

Linear temperature expansion copper tubes, stainless steel pipes, carbon steel pipes, ductile iron pipes and aluminum tubes are indicated below.

Temperature Change
(oF)

Linear Temperature Expansion (in/100 ft)
CopperStainless SteelCarbon SteelDuctile IronAluminum
0 0.0 0.0 0.0 0.0 0.0
10 0.1 0.1 0.1 0.1 0.2
20 0.2 0.2 0.2 0.2 0.3
40 0.5 0.5 0.4 0.4 0.6
50 0.6 0.6 0.5 0.5 0.8
60 0.7 0.7 0.6 0.5 1.0
70 0.8 0.8 0.7 0.6 1.1
80 0.9 0.9 0.7 0.7 1.3
90 1.1 1.0 0.8 0.8 1.4
100 1.2 1.1 0.9 0.9 1.6
120 1.4 1.4 1.1 1.1 1.9
140 1.6 1.6 1.3 1.3 2.2
160 1.9 1.8 1.5 1.4 2.5
180 2.1 2.0 1.7 1.6 2.9
200 2.4 2.3 1.9 1.8 3.2
220 2.6 2.5 2.1 2.0 3.5
240 2.8 2.7 2.2 2.2 3.8
260 3.1 2.9 2.4 2.3 4.1
280 3.3 3.2 2.6 2.5 4.4
300 3.5 3.4 2.8 2.7 4.8
320 3.8 3.6 3.0 2.9 5.1
340 4.0 3.8 3.2 3.1 5.4
360 4.2 4.1 3.4 3.2 5.7
380 4.5 4.3 3.6 3.4 6.0
400 4.7 4.5 3.7 3.6 6.3
• ΔT(oC) = 5/9 ΔT(oF)
• 1 ft (foot) = 0.3048 m
• 1 in (inch) = 25.4 mm

### Example - Temperature Expansion of Copper Tube

A copper tube with length 35 m (115 ft) is heated from 20oC (68oF) to 60oC (140oF) - a temperature difference of 40oC (72oF). The linear expansion from the table above is approximately 0.13 m/100m (1.6 in/100ft).

The expansion of the tube can be calculated

dl = (35 m) (0.13 m/100 m) / (100 m)

= 0.05 m

Alternatively in Imperial units:

dl = (115 ft) (1.6 in/100 ft) / (100 ft)

= 1.8 in

## Related Topics

• Temperature Expansion - Thermal expansion of pipes and tubes - stainless steel, carbon steel, copper, plastics and more

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Temperature

oC
oF

Length

m
km
in
ft
yards
miles
naut miles

Area

m2
km2
in2
ft2
miles2
acres

Volume

m3
liters
in3
ft3
us gal

Weight

kgf
N
lbf

Velocity

m/s
km/h
ft/min
ft/s
mph
knots

Pressure

Pa (N/m2)
bar
mm H2O
kg/cm2
psi
inches H2O

Flow

m3/s
m3/h
US gpm
cfm

1 14