Copper Tube: Medical Gas K,L

Nominal or standard size, inches		Nominal dimensions, inches
Nominal or standard size, inches		Outside diameter	Inside diameter	Wall thickness
1/4	K	0.375	0.305	0.035
1/4	L	0.375	0.315	0.03
3/8	K	0.5	0.402	0.049
3/8	L	0.5	0.43	0.035
1/2	K	0.625	0.527	0.049
1/2	L	0.625	0.545	0.04
5/8	K	0.75	0.652	0.049
5/8	L	0.75	0.666	0.042
3/4	K	0.875	0.745	0.065
3/4	L	0.875	0.785	0.045
1	K	1.125	0.995	0.065
1	L	1.125	1.025	0.05
1-1/4	K	1.375	1.245	0.065
1-1/4	L	1.375	1.265	0.055
1-1/2	K	1.625	1.481	0.072
1-1/2	L	1.625	1.505	0.06
2	K	2.125	1.959	0.083
2	L	2.125	1.985	0.07
2-1/2	K	2.625	2.435	0.095
2-1/2	L	2.625	2.465	0.08
3	K	3.125	2.907	0.109
3	L	3.125	2.945	0.09
3-1/2	K	3.625	3.385	0.12
3-1/2	L	3.625	3.425	0.1
4	K	4.125	3.857	0.134
4	L	4.125	3.905	0.11
5	K	5.125	4.805	0.16
5	L	5.125	4.875	0.125
6	K	6.125	5.741	0.192
6	L	6.125	5.854	0.14
8	K	8.125	7.583	0.271
8	L	8.125	7.725	0.2

Nominal or standard size, inches		Calculated values (based on nominal dimensions)
Nominal or standard size, inches		Weight of tube only, pounds per linear ft.	Volume of tube, cu. ft. per linear ft.
1/4	K	0.145	0.00051
1/4	L	0.126	0.00054
3/8	K	0.269	0.00088
3/8	L	0.198	0.00101
1/2	K	0.344	0.00151
1/2	L	0.285	0.00162
5/8	K	0.418	0.00232
5/8	L	0.362	0.00242
3/4	K	0.641	0.00303
3/4	L	0.455	0.00336
1	K	0.839	0.0054
1	L	0.655	0.00573
1-1/4	K	1.04	0.00845
1-1/4	L	0.884	0.00873
1-1/2	K	1.36	0.012
1-1/2	L	1.14	0.0124
2	K	2.06	0.0209
2	L	1.75	0.0215
2-1/2	K	2.93	0.0323
2-1/2	L	2.48	0.0331
3	K	4	0.0461
3	L	3.33	0.0473
3-1/2	K	5.12	0.0625
3-1/2	L	4.29	0.064
4	K	6.51	0.0811
4	L	5.38	0.0832
5	K	9.67	0.126
5	L	7.61	0.13
6	K	13.9	0.18
6	L	10.2	0.186
8	K	25.9	0.314
8	L	19.3	0.325