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ASTM A 216 ASTM A 216
CLASS A CLASS B CLASS A CLASS B
NPS NPS NPS NPS NPS NPS
1-12 1-12 14-24 1-12 1-12 14-24
°F Psig
-20 �� 150 175 200 150 400 500 300
200 165 190 135 370 460 280
225 155 180 130 355 440 270
250 150 175 125 340 415 260
275 145 170 120 325 395 250
300 140 165 110 310 375 240
325 130 155 105 295 355 230
353 125 150 100 280 335 220
375 --- 145 --- 265 315 210
406 --- 140 --- 250 290 200
425 --- 130 --- --- 270 ---
450 --- 125 --- --- 250 ---
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-29 �� 66 12 14 10 28 34 21
93 11 13 9 26 32 19
107 11 12 9 24 30 19
121 10 12 9 23 29 18
135 10 12 8 22 27 17
149 10 11 8 21 26 17
163 9 11 7 20 24 16
178 9 10 7 19 23 15
191 --- 10 --- 18 22 14
207 --- 10 --- 17 20 14
218 --- 9 --- --- 19 ---
232 --- 9 --- --- 17 ---

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CLASS 150 CLASS 300
ASTM B 62 ASTM B 61 ASTM B 62 ASTM B 61
C83600 C92200 C83600 C92200
°F �� psig bar psig bar psig bar psig bar
-20��150 -29��66 225 16 225 16 500 34 500 34
175 79 220 15 220 15 480 33 490 34
200 93 210 14 215 15 465 32 475 33
225 107 205 14 210 14 445 31 465 32
250 121 195 13 205 14 425 29 450 31
275 135 190 13 200 14 410 28 440 30
300 149 180 12 195 13 390 27 425 29
350 177 165 11 180 12 350 24 400 28
400 204 --- --- 170 12 --- --- 375 26
406 207 150 10 --- --- --- --- --- ---
450 232 135(1) 9 160 11 280(1) 19 350 24
500 260 --- --- 150 10 --- --- 325 22
550 288 --- --- 140 10 --- --- 300 21
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