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Table C2, Part 1. Type L – Rated internal working pressure

Nominal
or
standard
size,
in inches
Annealed
S=
6000 psi
100F
S=
5100 psi
150F
S=
4800 psi
200F
S=
4800 psi
250F
S=
4700 psi
300F
S=
4000 psi
350F
S=
3000 psi
400F
1/4
912
775
729
729
714
608
456
3/8
779
662
623
623
610
519
389
1/2
722
613
577
577
565
481
361
5/8
631
537
505
505
495
421
316
3/4
582
495
466
466
456
388
291
1
494
420
395
395
387
330
247
1 1/4
439
373
351
351
344
293
219
1 1/2
408
347
327
327
320
272
204
2
364
309
291
291
285
242
182
Nominal
or
standard
size,
in inches
Drawn²
S=
11,300 psi
100F
S=
11,300 psi
150F
S=
11,300 psi
200F
S=
11,300 psi
250F
S=
11,000 psi
300F
S=
10,300 psi
350F
S=
4300 psi
400F
1/4
1722
1722
1722
1722
1676
1569
655
3/8
1471
1471
1471
1471
1432
1341
560
1/2
1362
1362
1362
1362
1326
1242
518
5/8
1192
1192
1192
1192
1160
1085
454
3/4
1099
1099
1099
1099
1070
1002
418
1
933
933
933
933
908
850
355
1 1/4
828
828
828
828
806
755
315
1 1/2
771
771
771
771
750
702
293
2
686
686
686
686
667
625
261

¹ Based on maximum allowable stress in tension (psi) for the indicated temperatures (°F).

² When brazing or welding is used to join drawn tube, the corresponding annealed rating
must be used.

 



Table3b, Part 2. Type L¹ – Rated internal working pressure
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Nominal
or
standard
size,
in inches
Annealed
S=
6000 psi
100F
S=
5100 psi
150F
S=
4800 psi
200F
S=
4800 psi
250F
S=
4700 psi
300F
S=
4000 psi
350F
S=
3000 psi
400F
2 1/2
336
285
269
269
263
224
168
3
317
270
254
254
248
211
159
3 1/2
304
258
243
243
238
202
152
4
293
249
235
235
230
196
147
5
269
229
215
215
211
179
135
6
251
213
201
201
196
167
125
8
270
230
216
216
212
181
136
10
271
231
217
217
212
181
136
12
253
215
203
203
199
169
127
Nominal
or
standard
size,
in inches
Drawn²
S=
9000 psi
100F
S=
9000 psi
150F
S=
9000 psi
200F
S=
9000 psi
250F
S=
8700 psi
300F
S=
8500 psi
350F
S=
8200 psi
400F
2 1/2
504
504
504
504
488
476
460
3
476
476
476
476
460
449
443
3 1/2
455
455
455
455
440
430
415
4
440
440
440
440
425
415
401
5
404
404
404
404
390
381
368
6
376
376
376
376
364
355
343
8
406
406
406
406
392
383
370
10
380
380
380
380
368
359
346
12
380
380
380
380
368
359
346

¹ Based on maximum allowable stress in tension (psi) for the indicated temperatures (°F).

² When brazing or welding is used to join drawn tube, the corresponding annealed rating
must be used.

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