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Pipe circumferential (hoop) tensile strength<br />

Diameter<br />

inch<br />

Minimum hoop tensile strength lb f /in of width Pressure class, psi<br />

50 75 100 125 150 175 200 225 250<br />

16 1600 2400 3200 4000 4800 5600 6400 7200 8000<br />

18 1800 2700 3600 4500 5400 6300 7200 8100 9000<br />

20 2000 3000 4000 5000 6000 7000 8000 9000 10000<br />

24 2400 3600 4800 6000 7200 8400 9600 10800 12000<br />

28 2800 4200 5600 7000 8400 9800 11200 12600 14000<br />

30 3000 4500 6000 7500 9000 10500 12000 13500 15000<br />

32 3200 4800 6400 8000 9600 11200 12800 14400 16000<br />

33 3300 4950 6600 8250 9900 11550 13200 14850 16500<br />

36 3600 5400 6600 9000 10800 12600 14400 16200 18000<br />

40 4000 6000 8000 10000 12000 14000 16000 18000 20000<br />

42 4200 6300 8400 10500 12600 14700 16800 18900 21000<br />

44 4400 6600 8800 11000 13200 15400 17600 19800 22000<br />

46 4600 6900 9200 11500 13800 16100 18400 20700 23000<br />

48 4800 7200 9600 12000 14400 16800 19200 21600 24000<br />

50 5000 7500 10000 12500 15000 17500 20000 22500 25000<br />

52 5200 7800 10400 13000 15600 18200 20800 23400 26000<br />

54 5400 8100 10800 13500 16200 18900 21600 24300 27000<br />

56 5600 8400 11200 14000 16800 19600 22400 25200 28000<br />

60 6000 9000 12000 15000 18000 21000 24000 27000 30000<br />

64 6400 9600 12800 16000 19200 22400 25600 28800 32000<br />

68 6800 10200 13600 17000 20400 23800 27200 30600 34000<br />

72 7200 10800 14400 18000 21600 25200 28800 32400 36000<br />

74 7400 11100 14800 18500 22200 25900 29600 33300 37000<br />

76 7600 11400 15200 19000 22800 26600 30400 34200 38000<br />

78 7800 11700 15600 19500 23400 27300 31200 35100 39000<br />

80 8000 12000 16000 20000 24000 28000 32000 36000 40000<br />

82 8200 12300 16400 20500 24600 28700 32800 36900 41000<br />

84 8400 12600 16800 21000 25200 29400 33600 37800 42000<br />

86 8600 12900 17200 21500 25800 30100 34400 38700 43000<br />

88 8800 13200 17600 22000 26400 30800 35200 39600 44000<br />

90 9000 13500 18000 22500 27000 31500 36000 40500 45000<br />

92 9200 13800 18400 23000 27600 32200 36800 41400 46000<br />

94 9400 14100 18800 23500 28200 32900 37600 42300 47000<br />

96 9600 14400 19200 24000 28800 33600 38400 43200 48000<br />

98 9800 14700 19600 24500 29400 34300 39200 44100 49000<br />

(Bars) (3.4) (5.2) (6.9) (8.6) (10.3) (12.1) (13.8) (15.5) (17.2)<br />

(Table continues on next page)<br />

Page 21 of 51

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