I-fin

This fin type is a non-tapered fin wrapped under tension around the base tube. The finning process results in a crimp forming at the foot of the fin. Fin is then welded to the base tube at the strip ends. Maximum operating temperature for this fin type is 250 °C.

Fin material: Carbon/stainless steel or copper.

Tube materials: Carbon/stainless steel or copper and copper alloys.