Material: Stainless steel, carbon steel, aluminium Work pressure: 2.0MPa Work temperature: 300

specification of fin tube
material	specification	OD of fin	heat exchanging area	height of fin	thickness of fin	distance between fin
carbon steel tube with rolled aluminium fin	Φ 18 X 2.0	Φ38	0.72	10	0.3	3
	Φ 21 X 2.0	Φ44	0.96	12	0.3	3
	Φ 21 X 2.0	Φ51	1.15	15	0.3	3
	Φ 25 X 2.5	Φ50	1.2	12.5	0.3	3
	Φ 25 X 2.5	Φ55	1.37	15	0.3	3
	Φ 32 X 2.5	Φ62	1.56	15	0.3	3
carbon steel tube circled with carbon steel fin	Φ 18 X 2.0	Φ38	0.57	10	0.3	4 to 5
	Φ 21 X 2.0	Φ51	0.68	15	0.3	5 to 8
	Φ 21 X 2.0	Φ45	0.76	12	0.3	5 to 8
	Φ 25 X 2.5	Φ50	0.96	15	0.3	5 to 8
	Φ 25 X 2.5	Φ55	1	15	0.3	5 to 8
	Φ 32 X 2.5	Φ62	1.1	15	0.3	8 to 10
	Φ 32 X 2.5	Φ72	1.21	20	0.3	8 to 10
stainless steel tube circled with stainless steel fin	Φ 18 X 2.0	Φ38	0.62	10	0.3	4
	Φ 21 X 2.0	Φ51	0.75	15	0.3	5
	Φ 21 X 2.0	Φ45	0.87	12	0.3	5
	Φ 25 X 2.5	Φ50	1	12.5	0.3	5
	Φ 25 X 2.5	Φ55	1.25	15	0.3	5
stainless steel tube with rolled aluminium fin	Φ 18 X 2.0	Φ38	0.72	10	0.3	3
	Φ 21 X 2.0	Φ51	0.96	12	0.3	3
	Φ 21 X 2.0	Φ45	1.15	15	0.3	3
	Φ 25 X 2.5	Φ50	1.2	12.5	0.3	3
	Φ 25 X 2.5	Φ55	1.37	15	0.3	3
	Φ 32 X 2.5	Φ62	1.56	15	0.3	3
copper tube circled with copper fin	Φ 16 X 1.0	Φ36	0.56	10	0.3	3.2 to 3.5
	Φ 16 X 1.0	Φ36	0.66	10	0.3	2.6 to 2.8

Fin Tube as Boiler Pipe