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Hydraulic Tubing Pressure Chart

The chart below references nominal working pressure ratings for hydraulic steel tubing classified as SAE J524, SAE J525, SAE J526 and SAE J356. These working pressures assume a 4:1 safety factor and have been calculated the standard formula P=S((D2-d2)/(D2+d)).

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Please note the information provided is for reference only and should not be considered a standard or specification.

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Nominal Tubing Wall Thickness (in Inches)

NOMINAL TUBE
OD
 .028 .035 .049
 .065 .083 .095 .109 .120 .134 .148 .156 .188
.125 (1/8") 6650 8450
.188  (3/16") 4250 5450
.250  (1/4") 3100 3950 5750 7800
.312  (5/16") 2450 3100 4500 6150
.375  (3/8") 2000 2550 3650 5000 6550 7600
.500  (1/2") 1850 2700 3650 4800 5550 6450 7200
.625 (5/8") 1500 2100 2850 3750 4350 5050 6500
.750  (3/4") 1200 1750 2350 3050 3550 4150 4600
.875  (7/8") 1050 1500 2000 2600 3000 3500 3900
1.000  (1") 900 1300 1750 2250 2600 3000 3350 3800 4200
1.125 (1-1/8") 1150 1550 2000 2300 2650 2950 3300 3700
1.250 (1-1/4") 1000 1350 1750 2050 2350 2650 2950 3300 3500 4300
1.500 (1-1/2") 1150 1450 1700 1950 2150 2450 2700 2850 3500
1.750  (1-3/4") 950 1250 1450 1650 1850 2050 2300 2400 2950
2.000 (2") 850 1100 1250 1450 1600 1800 2000 2100 2550