ASTM B819 Seamless Copper Tubes for Medical Gas Systems - Dimensions

Dimensions and physical characteristics for copper tubes type K and L according to ASTM B819 Standard Specification for Seamless Copper Tube for Medical Gas Systems. Compare nominal sizes, outside diameter, inside diameter, wall thickness, and internal volume.

Nominal Size	OD (in)	ID (in)	Wall (in)	Volume (ft³/ft)
1/4	0.375	0.305	0.035	0.00051
3/8	0.5	0.402	0.049	0.00088
1/2	0.625	0.527	0.049	0.00151
5/8	0.75	0.652	0.049	0.00232
3/4	0.875	0.745	0.065	0.00303
1	1.125	0.995	0.065	0.0054
1 1/4	1.375	1.245	0.065	0.00845
1 1/2	1.625	1.481	0.072	0.012
2	2.125	1.959	0.083	0.0209
2 1/2	2.625	2.435	0.095	0.0323
3	3.125	2.907	0.109	0.0461
4	4.125	3.857	0.134	0.0811
5	5.125	4.805	0.16	0.126
6	6.125	5.741	0.192	0.18
8	8.125	7.583	0.271	0.314

Nominal Size	OD (in)	ID (in)	Wall (in)	Volume (ft³/ft)
1/4	0.375	0.315	0.03	0.00054
3/8	0.5	0.43	0.035	0.00101
1/2	0.625	0.545	0.04	0.00162
5/8	0.75	0.666	0.042	0.00242
3/4	0.875	0.785	0.045	0.00336
1	1.125	1.025	0.05	0.00573
1 1/4	1.375	1.265	0.055	0.00873
1 1/2	1.625	1.505	0.06	0.0124
2	2.125	1.985	0.07	0.0215
2 1/2	2.625	2.465	0.08	0.0331
3	3.125	2.945	0.09	0.0473
4	4.125	3.905	0.11	0.0832
5	5.125	4.875	0.125	0.13
6	6.125	5.854	0.14	0.186
8	8.125	7.725	0.2	0.325