Burst And Collapse Pressure

Printable Version of Charts

Minimum Internal Burst and External Collapse Pressures
    Alloy
    316L 825 625 2205
Nominal Outside Diameter (in.) Nominal Wall Thick-
ness (in.)

Min.
Burst Pressure
(psi)

 Min. Collapse Pressure
(psi)		 Min.
Burst Pressure
(psi)		 Min. Collapse Pressure
(psi)		 Min. Burst Pressure
(psi)		 Min. Collapse Pressure
(psi)		 Min. Burst Pressure
(psi)		 Min. Collapse Pressure
(psi)
0.125 0.020 19,688 6,042 23,906 8,459 33,750 14,502 30,938 19,336
0.125 0.028 27,563 7,906 33,469 11,068 47,250 18,974 43,313 25,298
0.125 0.035 34,453 9,277 41,836 12,987 59,063 22,264 54,141 29,685
0.250 0.020 9,960 3,304 12,095 4,626 17,075 7,930 15,652 10,185
0.250 0.028 13,945 4,484 16,933 6,278 23,905 10,762 21,913 14,349
0.250 0.035 17,431 5,450 21,166 7,630 29,881 13,081 27,391 17,441
0.250 0.049 24,403 7,196 29,632 10,075 41,834 17,271 38,348 23,028
0.250 0.065 32,372 8,888 39,308 12,443 55,494 21,331 50,870 28,442
0.375 0.020 6,667 2,199 8,095 2,754 11,429 3,835 10,476 4,405
0.375 0.028 9,333 3,111 11,333 4,356 16,000 7,270 14,667 9,084
0.375 0.035 11,667 3,819 14,167 5,347 20,000 9,167 18,333 12,222
0.375 0.049 16,333 5,153 19,833 7,214 28,000 12,367 25,667 16,489
0.375 0.065 21,667 6,541 26,310 9,157 37,143 15,697 34,048 20,930
0.500 0.020 5,010 1,336 6,083 1,545 8,588 2,017 7,873 2,246
0.500 0.028 7,014 2,379 8,517 3,009 12,024 4,282 11,022 5,015
0.500 0.035 8,767 2,935 10,646 4,109 15,030 6,541 13,777 8,091
0.500 0.049 12,274 3,999 14,905 5,599 21,042 9,598 19,288 12,798
0.500 0.065 16,282 5,139 19,771 7,194 27,913 12,333 25,586 16,444
0.625 0.028 5,600 1,926 6,800 1,984 9,600 2,534 8,800 2,940
0.625 0.035 7,000 2,382 8,500 3,016 12,000 4,293 11,000 5,029
0.625 0.049 9,800 3,265 11,900 4,570 16,800 7,835 15,400 9,958
0.625 0.065 13,000 4,224 15,786 5,913 22,286 10,137 20,429 13,516

 

Notes Regarding Burst and Collapse Pressure
Minimum internal burst pressure and external collapse pressure calculations were based upon:
Minimum ultimate tensile strength, UTSmin and 0.2% offset yield strength, YSmin (See Table)
Maximum outside diameter, ODmax (See Table)
Minimum wall thickness, tmin (See Table)
Minimum burst pressure = (2 x tmin x UTSmin) / ODmax assumes no axial or other loading except internal pressure
Collapse pressure based on API 5C3 assumes no ovality, internal pressure or other loading except external pressure

 

Minimum Mechanical Properties
  Alloy
Property 316L 825 625 2205
Minimum Ultimate
Tensile Strength, UTSmin (psi)		 70,000 85,000 120,000 110,000
Minimum 0.2% Offset Yield
Strength, YSmin (psi)
 25,000 35,000 60,000 80,000

 

Permissible Variation in Tubing Dimensions
Nominal Outside Diameter (in.) Outside Diameter, OD (± in.) Wall Thickness, t(±%)
Less than 0.625 0.003 10%
Greater than or equal 0.625 0.005 10%