Pipe - CU, ASTM Type K (in)

This datasheet is for Copper Tubing, ASTM Type K which is designated with a GREEN background color coded for identification. For more information about copper tubing, visit our copper tubing page.

• Governing Standard:  ASTM B88
• Typical Applications:  Domestic Water Service and Distribution, Fire Protection, Solar, Fuel/Fuel Oil, HVAC, Snow Melting, Compressed Air, Natural Gas, Liquified Petroleum (LP) Gas, Vacuum
• Commercially Available Lengths
  • Straight Length
    • 1/4 inch to 8 inch - 20' (drawn), 20' (annealed)
    • 10 inch - 18' (drawn), 18' (annealed)
    • 12 inch - 12' (drawn), 12' (annealed)
  • Coils
    • 1/4 inch to 1 inch - N/A (drawn), 60' and 100' (annealed)
    • 1 1/4 inch and 1 1/2 inch - N/A (drawn), 60' (annealed)
    • 2 inch - N/A (drawn), 40' and 45' (annealed)

 

Pipe - CU, ASTM Type K (in)
Pipe Size (NPS)	Outside Diameter (in)	Inside Diameter (in)	Wall Thickness (in)	Weight of Tube (lb/ft)	Weight of Tube and Water (lb/ft)	Contents (gal/ft)
1/4	3/8	0.305	0.035	0.145	0.177	0.00379
3/8	1/2	0.402	0.049	0.269	0.324	0.0066
1/2	5/8	0.527	0.049	0.344	0.438	0.0113
5/8	3/4	0.652	0.049	0.418	0.562	0.0174
3/4	7/8	0.745	0.065	0.641	0.829	0.0227
1	1 1/8	0.995	0.065	0.839	1.18	0.0404
1 1/4	1 3/8	1.245	0.065	1.04	1.57	0.0634
1 1/2	1 5/8	1.481	0.072	1.36	2.1	0.0894
2	2 1/8	1.959	0.083	2.06	3.36	0.156
2 1/2	2 5/8	2.435	0.095	2.93	4.94	0.242
3	3 1/8	2.907	0.109	4	6.87	0.345
3 1/2	3 5/8	3.385	0.120	5.12	9.01	0.468
4	4 1/8	3.857	0.134	6.51	11.6	0.608
5	5 1/8	4.805	0.160	9.67	17.5	0.94
6	6 1/8	5.741	0.192	13.9	25.1	1.35
8	8 1/8	7.583	0.271	25.9	45.4	2.35
10	10 1/8	9.449	0.338	40.3	70.6	3.64
12	12 1/8	11.315	0.405	57.8	101	5.25

     

Pipe - Cu, ASTM Type K, "Drawn" Tube Internal Working Pressure (in) Type K internal working pressure is based on maximum allowable stress in tension (psi) for the indicated temperatures (°F).
Pipe Size (NPS)	S = 10.3 ksi 100 F	S = 10.3 ksi 150 F	S = 10.3 ksi 200 F	S = 10.3 ksi 250 F	S = 10.0 ksi 300 F	S = 9.7 ksi 350 F	S = 9.4 ksi 400 F
1/4	1850	1850	1850	1850	1796	1742	1688
3/8	1946	1946	1946	1946	1889	1833	1776
1/2	1534	1534	1534	1534	1490	1445	1400
5/8	1266	1266	1266	1266	1229	1193	1156
3/4	1466	1466	1466	1466	1424	1381	1338
1	1126	1126	1126	1126	1093	1061	1028
1 1/4	914	914	914	914	888	861	834
1 1/2	850	850	850	850	825	801	776
2	747	747	747	747	726	704	682
2 1/2	684	684	684	684	664	644	624
3	662	662	662	662	643	624	604
3 1/2	628	628	628	628	610	592	573
4	618	618	618	618	600	582	564
5	592	592	592	592	575	557	540
6	595	595	595	595	578	560	543
8	634	634	634	634	615	597	578
10	634	634	634	634	615	597	578
12	635	635	635	635	617	598	580

   

Pipe - Cu, ASTM Type K, "Annealed" Tube Internal Working Pressure (in) Type K internal working pressure is based on maximum allowable stress in tension (psi) for the indicated temperatures (°F).
Pipe Size (NPS)	S = 6.0 ksi 100 F	S = 5.1 ksi 150 F	S = 4.9 ksi 200 F	S = 4.8 ksi 250 F	S = 4.7 ksi 300 F	S = 4.0 ksi 350 F	S = 3.0 ksi 400 F
1/4	1074	913	877	860	842	716	537
3/8	1130	960	923	904	885	753	565
1/2	891	758	728	713	698	594	446
5/8	736	626	601	589	577	491	368
3/4	852	724	696	682	668	568	426
1	655	557	535	524	513	437	327
1 1/4	532	452	434	425	416	354	266
1 1/2	494	420	404	396	387	330	247
2	435	370	355	348	341	290	217
2 1/2	398	338	325	319	312	265	199
3	385	328	315	308	302	257	193
3 1/2	366	311	299	293	286	244	183
4	360	306	294	288	282	240	180
5	345	293	281	276	270	230	172
6	346	295	283	277	271	231	173
8	369	314	301	295	289	246	184
10	369	314	301	295	289	246	184
12	370	314	302	296	290	247	185