Lawton Tubes
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The calculators below will output tube thickness, recommended working pressure or internal diameter based on any given two know starting parameters. The measurements are all in inches and pressures in PSI.

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

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