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# Thermal Expansion of Steam Pipes - (inches)

Expansion of steam pipes when pressurized and heated from room temperature.

Thermal Expansion of Steam Pipes
Operating
Temperature
(oF)
Expansion
(inches per 100 ft Pipe)
150 0.75
200 1.15
250 1.6
300 2.0
350 2.4
400 2.9
450 3.3
500 3.8

Note! - to avoid unacceptable stress and damage in a steam pipe line - handle expansion properly.

### Example - Expansion of Steam Pipe

A system is designed for pressure 120 psi with operating temperature 350 oF. As indicated in the table above (350 oF) the expansion is is approximately 2.4 in100ft pipe.

The expansion of a 90 ft long pipe can be calculated as

dl = ((2.4 in100ft) / (100 ft)) (90 ft)

= 2.2 in

## Related Topics

### • Pipe Sizing

Sizing of steam and condensate pipe lines - pressure loss, recommended velocity, capacity and more.

### • Steam and Condensate

Steam & condensate systems- properties, capacities, pipe sizing, systems configuration and more.

## Related Documents

### Circular Ring - Temperature Expansion

Calculate ring (or pipe) diameter expansion or contraction when temperature changes.

### Fixed Pipes - Stress vs. Change in Temperature

Temperature changes introduces stress fixed pipes.

### Linear Thermal Expansion

Online linear temperature expansion calculator.

### Metals - Temperature Expansion Coefficients

Thermal expansion coefficients metals.

### Pipes and Tubes - Temperature Expansion

Pipes expands when heated and contracts when cooled and the expansion can be expressed with the expansion equation.

### Piping Materials - Temperature Expansion Coefficients

Temperature expansion coefficients for materials used in pipes and tubes like aluminum, carbon steel, cast iron, PVC, HDPE and more.

### Piping Materials - Temperature Heat Expansion and Cooling Contraction

Expansion and contraction when cast iron, carbon and carbon molybdenum steel, wrought iron, copper, brass and aluminum pipes are heated or cooled.

### Pressfit Pipes - Expansion Loops

Temperature expansion loops with pressfit piping.

### PVC, CPVC, Carbon Steel, Stainless Steel and Fiberglass Pipes - Thermal Expansion Diagrams

Thermal expansion of PVC, CPVC, Carbon and Stainless Steel and Fiberglass pipes.

### Restricted Thermal Expansion - Force and Stress

Stress and force when thermal expansion a pipe, beam or similar is restricted.

### Sizing Steam Pipes (kg/h)

Steam is a compressible gas where pipe line mass flow capacity depends on steam pressure.

### Sizing Steam Pipes (lb/h)

Steam is a compressible gas where the capacity of a pipe line depends on the size of the pipe and the steam pressure.

### Steam Pipes - Sizing

Sizing of steam pipe lines - major and minor loss in steam distribution systems.

### Steam Pipes - Thermal Expansion

Thermal expansion of steam pipes heated from room temperature to operation temperature (mm pr. 100 m pipe).

### Steel Pipes - Temperature Expansion

Calculate temperature expansion with carbon steel pipes.

### Steel Pipes - Thermal Expansion Loops

Calculating and sizing steel pipe thermal expansion loops.

### Thermal Expansion - Linear Expansion Coefficients

Linear temperature expansion coefficients for common materials like aluminum, copper, glass, iron and many more.

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