Knurled Integral Low Finned Copper Tubing

ASTM B111:  Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock C70600 / C71500 / C12200 / C12100 / C68700

C70600 equals to BFe10-1-1 ;  C71500 equals to BFe30-1-1

Quick Detail: General Low Fin Tubes Production Capacity

Specifications of Low Fin Tubes(N Fins)

- Finning Facility: 10 finning machines;

- Daily capacity up to 3000 meters; Tube OD: 12.7 mm~25.4mm

- Tube Length: 18 meters max.

- Fin Height: 1.2 mm ~2.77mm

- Fin Thickness: appr. 0.3mm

- Fin Pitch: 30 FPI /28 FPI/ 26 FPI/ 36 FPI /43 FPI

Knurled low-finned copper tubing Description: 

Knurled low-finned tube Manufacturing process: The fins are rolled out of the outer wall of the plain tubes by a passing roller. Tubes and fins are in the same piece tube. We call it an “N” type fin tube.

Delivery of Low Fin Tubes

We can provide the integral low fin tubes with un-finned section gaps( 5mm Min.) in the middle of the core tube OR bent with the designed Bend Radius.

Knurled low-finned tube quality test:

The integral low fin tube quality is assured by hydrostatic or pneumatic tests, eddy current tests & MARCO tests in order to verify design specifications.

Knurled low-finned tube Acceptance critic:  WOLVERINE  /  HPT  / GEWA-K & GEWA-KS 

Knurled low-finned tube delivery condition:

Tube ends are square cut, free burrs, internally dried and air blown clean, and externally coated with varnish.

The desiccants are put into each package for continental transportation.

Knurled low-finned tube applications: The Integral Low Finned Tubes find preference in the following industrial sectors: Heating systems; Ventilation systems; Refrigeration and climate control systems; Mechanical engineering; Automotive manufacturing; Chemicals and petrochemical and power plant technology

Knurled low-finned tube Specifications: 

Tube and fins consist of the same tube and materials as carbon steel, low-alloy steels, stainless steel, brass, copper, cooper-nickel alloys, aluminum bronze, nickel alloys, titanium, etc

In order to forward you a prompt offer we would be pleased to receive your detailed inquiry including:

• Base tube material 

• Base tube size (OD x WT x Length)

• Fin material

• Fin type

• Fin diameter or height

• Fin thickness

• Fins per inch, meter, or fin pitch

• Lenght of plain, unfinned ends

• Finned Tube Quantity

(Additional fabrication, such as bending or welding the tubes into tubeplate or assembly)