Copper Tube: Type K

Dimensions and Physical Characteristics of Copper Tube: Type K

Nominal or standard size, in inches	Nominal dimensions, inches
	Outside diameter	Inside diameter	Wall thickness
1/4	0.375	0.305	0.035
3/8	0.5	0.402	0.049
1/2	0.625	0.527	0.049
5/8	0.75	0.652	0.049
3/4	0.875	0.745	0.065
1	1.125	0.995	0.065
1-1/4	1.375	1.245	0.065
1-1/2	1.625	1.481	0.072
2	2.125	1.959	0.083
2-1/2	2.625	2.435	0.095
3	3.125	2.907	0.109
3-1/2	3.625	3.385	0.12
4	4.125	3.857	0.134
5	5.125	4.805	0.16
6	6.125	5.741	0.192
8	8.125	7.583	0.271
10	10.125	9.449	0.338
12	12.125	11.315	0.405

Nominal or standard size, in inches	Calculated values (based on nominal dimensions)
	Weight of tube only, pounds per linear ft.	Weight of tube & water, pounds per linear ft.	Volume of tube, per linear ft.
			Cu ft.	Gal.
1/4	0.145	0.177	0.00051	0.00379
3/8	0.269	0.324	0.00088	0.0066
1/2	0.344	0.438	0.00151	0.0113
5/8	0.418	0.562	0.00232	0.0174
3/4	0.641	0.829	0.00303	0.0227
1	0.839	1.18	0.0054	0.0404
1-1/4	1.04	1.57	0.00847	0.0634
1-1/2	1.36	2.1	0.0119	0.0894
2	2.06	3.36	0.0209	0.156
2-1/2	2.93	4.94	0.0324	0.242
3	4	6.87	0.0461	0.345
3-1/2	5.12	9.01	0.0625	0.468
4	6.51	11.6	0.0813	0.608
5	9.67	17.5	0.126	0.94
6	13.9	25.1	0.18	1.35
8	25.9	45.4	0.314	2.35
10	40.3	70.6	0.487	3.64
12	57.8	101	0.701	5.25