Dimensions and Physical Characteristics of Copper Tube: ACR (Air-Conditioning and Refrigeration Field Service)

Nominal or Standard Size, inches		Nominal dimensions, inches			Calculated values (based on nominal dimensions)
		Outside diameter	Inside diameter	Wall thickness	Cross sectional area of bore, sq. inches	External surface, sq. ft. per linear ft.	Internal surface, sq. ft. per linear ft.	Weight of Tube only, pounds per linear ft.	Contents of tube, cu. ft. per linear ft.
1/8	A	.125	.065	.030	.00332	.0327	.0170	.0347	.00002
3/16	A	.187	.128	.030	.0129	.0492	.0335	.0575	.00009
1/4	A	.250	.190	.030	.0284	.0655	.0497	.0804	.00020
5/16	A	.312	.248	.032	.0483	.0817	.0649	.109	.00034
3/8	A	.375	.311	.032	.076	.0982	.0814	.134	.00053
	D	.375	.315	.030	.078	.0982	.0821	.126	.00054
1/2	A	.500	.436	.032	.149	.131	.114	.182	.00103
	D	.500	.430	.035	.145	.131	.113	.198	.00101
5/8	A	.625	.555	.035	.242	.164	.145	.251	.00168
	D	.625	.545	.040	.233	.164	.143	.285	.00162
3/4	A	.750	.680	.035	.363	.196	.178	.305	.00252
	A	.750	.666	.042	.348	.196	.174	.362	.00242
	D	.750	.666	.042	.348	.196	.174	.362	.00242
7/8	A	.875	.785	.045	.484	.229	.206	.455	.00336
	D	.875	.785	.045	.484	.229	.206	.455	.00336
1-1/8	A	1.125	1.025	.050	.825	.294	.268	.655	.00573
	D	1.125	1.025	.050	.825	.294	.268	.655	.00573
1-3/8	A	1.375	1.265	.055	1.26	.360	.331	.884	.00875
	D	1.375	1.265	.055	1.26	.360	.331	.884	.00875
1-5/8	A	1.625	1.505	.060	1.78	.425	.394	1.14	.0124
	D	1.625	1.505	.060	1.78	.425	.394	1.14	.0124
2-1/8	D	2.125	1.985	.070	3.09	.556	.520	1.75	.0215
2-5/8	D	2.625	2.465	.080	4.77	.687	.645	2.48	.0331
3-1/8	D	3.125	2.945	.090	6.81	.818	.771	3.33	.0473
3-5/8	D	3.625	3.425	.100	9.21	.949	.897	4.29	.0640
4-1/8	D	4.125	3.905	.110	12.0	1.08	1.02	5.38	.0833
A = Annealed Temper, D = Drawn Temper