Pressure
Ratings

*** Theoretical burst and working pressure in psi at 100 degrees F

Pressure Formula: Internal Burst = 2 St/D Where P = Internal pressure psi
S = Tensile stress psi
t = Minimum wall thickness in inches
D = Nominal outside diameter in inches
Working pressure = 1/4 internal burst pressure

Tensile Requirements (304, 304L, 316, 316L):
A minimum of (2) tests per work order / heat number
Minimum yield strength = 30,000 psi
Minimum ultimate strength = 75,000 psi
Minimum elongation = 35%

Hardness Requirements (304, 304L, 316, 316L):
A minimum of (2) tests per work order / heat number
Maximum hardness* = 74 30T or 90 RB

* Not applicable to sizes < 0.250 I.D. unless specified

O.D.N. Wall (in)Actual O.D. (in)Min. ODMax ODWt/ft (lb)Burst Pressure (PSIWorking Pressure (PSI)
1/4"0.0200.2500.2450.2550.05012,0003,000
1/4"0.0280.2500.2450.2550.06616,8004,200
1/4"0.0350.2500.2450.2550.07721,0005,250
1/4"0.0490.2500.2450.2550.10129,4007,350
5/16"0.0200.3130.3080.3180.0649,5852,396
5/16"0.0280.3130.3080.3180.08513,4193,355
5/16"0.0350.3130.3080.3180.09916,7734,193
5/16"0.0490.3130.3080.3180.13223,4825,871
3/8"0.0200.3750.3700.3800.0778,0002,000
3/8"0.0280.3750.3700.3800.10311,2002,800
3/8"0.0350.3750.3700.3800.12114,0003,500
3/8"0.0490.3750.3700.3800.16319,6004,900
3/8"0.0650.3750.3700.3800.21326,0006,500
7/16"0.0350.4370.4320.4420.15012,0143,003
7/16"0.0650.4370.4320.4420.25622,3115,578
1/2"0.0200.5000.4950.5050.1046,0001,500
1/2"0.0280.5000.4950.5050.1418,4002,100
1/2"0.0350.5000.4950.5050.17310,5002,625
1/2"0.0490.5000.4950.5050.23514,7003,675
1/2"0.0650.5000.4950.5050.29919,5004,875
1/2"0.0830.5000.4950.5050.36224,9006,225
1/2"0.0950.5000.4950.5050.40228,5007,125
1/2"0.1090.5000.4950.5050.44732,7008,175
5/8"0.0200.6250.6200.6300.1324,8001,200
5/8"0.0280.6250.6200.6300.1786,7201,680
5/8"0.0350.6250.6200.6300.2208,4002,100
5/8"0.0420.6250.6230.6280.26810,0802,520
5/8"0.0490.6250.6200.6300.30011,7602,940
5/8"0.0650.6250.6200.6300.38415,6003,900
5/8"0.0830.6250.6200.6300.47019,9204,980
5/8"0.0950.6250.6200.6300.52422,8005,700
5/8"0.1090.6250.6200.6300.58826,1606,540
3/4"0.0200.7500.7450.7550.1594,0001,000
3/4"0.0250.7500.7450.7550.2075,0001,250
3/4"0.0280.7500.7450.7550.2155,6001,400
3/4"0.0350.7500.7450.7550.2667,0001,750
3/4"0.0490.7500.7450.7550.3659,8002,450
3/4"0.0650.7500.7450.7550.47013,0003,250
3/4"0.0830.7500.7450.7550.57716,6004,150
3/4"0.0950.7500.7450.7550.64619,0004,750
3/4"0.1090.7500.7450.7550.72921,8005,450
7/8"0.0200.8750.8700.8800.1863,429857
7/8"0.0250.8750.8700.8800.2424,2861,071
7/8"0.0280.8750.8700.8800.2524,8001,200
7/8"0.0350.8750.8700.8800.3136,0001,500
7/8"0.0490.8750.8700.8800.4308,4002,100
7/8"0.0650.8750.8700.8800.55511,1432,786
7/8"0.0830.8750.8700.8800.68514,2293,557
7/8"0.0950.8750.8700.8800.76816,2864,071
7/8"0.1090.8750.8700.8800.87018,6864,671
1"0.0201.0000.9951.0050.2133,000750
1"0.0281.0000.9951.0050.2894,2001,050
1"0.0351.0000.9951.0050.3595,2501,313
1"0.0491.0000.9951.0050.4967,3501,838
1"0.0651.0000.9951.0050.6409,7502,438
1"0.0831.0000.9951.0050.79212,4503,113
1"0.0951.0000.9951.0050.89114,2503,563
1"0.1091.0000.9951.0051.01116,3504,088
1 1/4"0.0201.2501.2451.2550.3743,360840
1 1/4"0.0251.2501.2451.2550.4654,2001,050
1 1/4"0.0281.2501.2451.2550.6435,8801,470
1 1/4"0.0351.2501.2451.2550.8427,8001,950
1 1/4"0.0491.2501.2451.2551.0599,9602,490
1 1/4"0.0651.2501.2451.2551.19911,4002,850
1 1/4"0.0831.2501.2451.2551.35913,0803,270
1 1/2"0.0201.5001.4951.5050.4502,800700
1 1/2"0.0281.5001.4951.5050.5603,500875
1 1/2"0.0351.5001.4951.5050.7774,9001,225
1 1/2"0.0491.5001.4951.5051.0196,5001,625
1 1/2"0.0651.5001.4951.5051.2858,3002,075
1 1/2"0.0831.5001.4951.5051.4599,5002,375
1 1/2"0.0951.5001.4951.5051.65710,9002,725
1 1/2"0.1091.5001.4951.5051.65710,9002,725
1 3/4"0.0201.7501.7451.7550.6563,000750
1 3/4"0.0251.7501.7451.7550.9114,2001,050
1 3/4"0.0281.7501.7451.7551.1975,5711,393
1 3/4"0.0351.7501.7451.7551.5127,1141,779
1 3/4"0.0491.7501.7451.7551.7188,1432,036
1 3/4"0.0651.7501.7451.7551.9559,3432,336
1 3/4"0.0831.7501.7451.7551.9559,3432,336
2"0.0202.0001.9952.0050.7522,625656
2"0.0282.0001.9952.0051.0453,675919
2"0.0352.0001.9952.0051.3754,8751,219
2"0.0492.0001.9952.0051.7396,2251,556
2"0.0652.0001.9952.0051.9787,1251,781
2"0.0832.0001.9952.0052.2538,1752,044
2"0.0952.0001.9952.0052.2538,1752,044
6mm1mm0.2360.2310.2410.08425,0236,256
8mm1mm0.3150.3100.3200.11818,5744,643
10mm1mm0.3940.3890.3990.15114,8593,715
12mm1mm0.4720.4670.4770.18512,3833,096
20mm1mm0.7870.7820.7920.3197,4331,858
O.D.Nom. SizeActual O.D. (in)Nom. Wall (in)Min. O.D. (in)Max. O.D. (in)Max. Ovality (in)Min. wall (in)Weight / Ft (lb)Burst PressureWorking Pressure
1/8"Sch 50.4050.0350.3950.4130.0060.0310.136129633241
1/8"Sch 100.4050.0490.3950.4130.0060.0430.184181484537
1/8"Sch 400.4050.0680.3950.4130.0060.0600.239251856296
1/4"Sch 50.5400.0490.5300.5480.0060.0430.253136113403
1/4"Sch 100.5400.0650.5300.5480.0060.0570.333180564514
1/4"Sch 400.5400.0880.5300.5480.0060.0770.408244446111
3/8"Sch 100.6750.0650.6650.6830.0060.0570.427144443611
3/8"Sch 400.6750.0910.6650.6830.0060.0800.543202225056
1/2"Sch 50.8400.0650.8300.8480.0100.0570.543116072902
1/2"Sch 100.8400.0830.8300.8480.0100.0730.643148213705
1/2"Sch 400.8400.1090.8300.8480.0100.0950.808194644866
3/4"Sch 51.0500.0651.0401.0580.0100.0570.69092862321
3/4"Sch 101.0500.0831.0401.0580.0100.0730.820118572964
3/4"Sch 401.0500.1131.0401.0580.0100.0991.079161434036
1"Sch 51.3150.0651.3051.3230.0100.0570.87574141854
1"Sch 101.3150.1091.3051.3230.0100.0951.327124333108
1"Sch 401.3150.1331.3051.3230.0100.1161.590151713793
1 1/4"Sch 101.6600.1091.6501.6700.0100.0951.70398492462
1 1/4"Sch 401.6600.1401.6501.6700.0100.1232.143126513163
1 1/4"Sch 801.6600.1911.6501.6700.0100.1672.711172594315
1 1/2"Sch 101.9000.1091.8901.9100.0100.0951.96586052151
1 1/2"Sch 401.9000.1451.8901.9100.0100.1272.558114472862
1 1/2"Sch 801.9000.2001.8901.9100.0100.1753.146157893947
2"Sch 102.3750.1092.3652.3850.0100.0952.48468841721
2"Sch 402.3750.1542.3652.3850.0100.1353.42697262432
2"Sch 802.3750.2162.3652.3850.0100.1894.008136423411