Copper tubes（inner grooved）

Item	O.D. (mm)	I.D. (mm)	Bottom Wall Thickness Tw (mm)	Fin Grove Depth Hf (mm)	Total Wall Thickness (mm)	Apex Angle α ( ° )	Helix Angle β (°)	Number of Tooth
1	5.00	4.30	0.2	0.15	0.35	40	18	40
2	7.00	6.34	0.23	0.1	0.33	40	15	65
3	7.00	6.16	0.24	0.18	0.42	35	18	50
4	7.00	6.14	0.25	0.18	0.43	40	18	50
5	7.00	6.06	0.25	0.22	0.47	22	16	54
6	7.94	7.08	0.25	0.18	0.43	40	18	50
7	7.94	7.04	0.25	0.2	0.45	40	18	50
8	7.94	6.94	0.3	0.2	0.5	35	18	50
9	9.52	8.72	0.28	0.12	0.4	53	15	65
10	9.52	8.66	0.28	0.15	0.43	90	25	65
11	9.52	8.58	0.3	0.17	0.47	25	18	70
12	12.00	10.78	0.36	0.25	0.61	40	18	70
13	12.70	11.50	0.35	0.25	0.6	53	18	70
14	12.70	11.40	0.4	0.25	0.65	53	18	70
15	12.70	11.20	0.5	0.25	0.75	53	18	75
16	12.75	11.53	0.36	0.25	0.61	48	20	70
17	14.00	12.82	0.37	0.22	0.59	52	16	75
18	14.00	12.70	0.4	0.25	0.65	40	18	70
19	15.00	13.70	0.4	0.25	0.65	42	18	75
20	15.87	14.37	0.4	0.3	0.7	25	15	68
21	15.87	14.11	0.58	0.3	0.88	42	18	75
22	15.92	14.63	0.4	0.25	0.65	25	18	75
23	15.88	14.28	0.5	0.3	0.8	70	27	75
24	16.00	14.70	0.4	0.25	0.65	10	1	110
25	16.00	14.30	0.65	0.2	0.85	10	1	140
Specifications	☉Standard: ASTM B-68 (GB/T 20928 ) ☉Materials: C11000 (T2), C12200 (TP2), C2680 (H68), C27200 (H63) and C27000 (H65) ☉Temper: soft drawn or light soft drawn ☉O.D. (Outside diameter): 5.0 to 16.0mm ☉I.D. (Inner diameter): 4.3 to 14.3mm ☉Bottom wall thickness: 0.20 to 0.65mm ☉Total wall thickness: 0.35 to 0.85mm ☉Fin groove depth: 0.15 to 0.25mm ☉Customized sizes and shapes are accepted
Packing	☉in capped each tube trapped and in fumigated wooden cases, or as the customer's requests ☉Great care is taken to avoid any damage which might be caused during storage or transportation

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