Lawton Tubes
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Our below parameters calculators help you to output tube thickness, recommended working pressure or internal diameter based on any two given known starting parameters.  

The measurements provided by the parameters calculators are all in inches and pressures in PSI to add ease to your project planning. For bespoke projects, please contact our team for further advice and information.  

Tube Thickness (Inches only)
H Annealed HH
Copper
90/10 CuNi
70/30 CuNi
70/30 Brass
Alum Brass
Recommended Working Pressures (PSI)
H Annealed HH
Copper
90/10 CuNi
70/30 CuNi
70/30 Brass
Alum Brass
Internal Diameter (Based on known wall thickness)
H Annealed HH
Copper
90/10 CuNi
70/30 CuNi
70/30 Brass
Alum Brass