Copper Tube Handbook: Table 14.3d

Nominal or standard size, in inches	Annealed***							Drawn**
Nominal or standard size, in inches	S= 6000 psi 100F	S= 5100 psi 150F	S= 4900 psi 200F	S= 4800 psi 250F	S= 4700 psi 300F	S= 4000 psi 350F	S= 3000 psi 400F	S= 10,300 psi 100F	S= 10,300 psi 150F	S= 10,300 psi 200F	S= 10,300 psi 250F	S= 10,000 psi 300F	S= 9,700 psi 350F	S= 9,400 psi 400F
1¼	330	280	269	264	258	220	165	566	566	566	566	549	533	516
1½	293	249	240	235	230	196	147	503	503	503	503	489	474	459
2	217	185	178	174	170	145	109	373	373	373	373	362	352	341
3	159	135	130	127	125	106	80	273	273	273	273	265	257	249
4	150	127	122	120	117	100	75	257	257	257	257	250	242	235
5	151	129	124	121	119	101	76	260	260	260	260	252	245	237
6	148	126	121	119	116	99	74	255	255	255	255	247	240	232
8	146	124	119	117	114	97	73	251	251	251	251	244	236	229

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

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

*** Types M and DWV are not normally available in the annealed temper. Shaded values are provided for guidance when drawn temper tube is brazed or welded. For more information, see Pressure Ratings and Burst Strength.

Table 14.3d. Calculated Rated Internal Working Pressure for Copper Tube: DWV*