ASTM A179 Fin Tubes

ASTM A179 Fin Tubes is formed by passing a tube through a set of rollers that form the fins from the parent material of the tube by making it flow in the desired way.

ASTM A179 fin Tubes
ASTM A179 fin Tubes

Inspect ASTM A179 Tubes

High finned tubes are also called extruded tubes. The finning is achieved by extruding the fin from the tube.


Extruded ASTM A179 Fin Tubess

This method of construction is very different from cutting grooves onto the tube as is often done by people who are on the lookout for a shortcut or who don’t know any better.


Aluminum Extruded Fin


Aluminum L-foot finned tube in production

High fin dimension capability
General requirements
  • Tube material according to ASME II-A, last edition. Fin material according to ASME II-B, last edition.
  • Certification according to EN 10204 3.1 [2004] is required.
  • Tubes according to ASME-II SA 450.
  • Seamless tube only. Tube surface shall be free from repair welds, imperfections, scale or rust. A light rust protection product may be acceptable. No weld repair is permitted.
  • Material shall be adequately protected to ensure no damage of fins and tubes during shipping and handling.
  • Tubes shall be cut square and deburred both I.D. and O.D.
  • Tubes with zinc separator protected when package.

Base tube diameters

Inch mm
5/8"
3/4"
1"
1 1/4"
1 1/2"
1 3/4"
2"
15,88
19,05
25,40
31,75
31,75
44,40
50,80

Fin-heights

Inch mm
3/8"
1/2"
5/8"
9,55
12,70
15,8

number of fins

fins per inch fins per meter
7
8
9
10
11
12
275
315
354
394
433
473

measure AL1060 coil height

Inspect


Measurement

ASTM A179 Fin Tubes in wooden case

Recommended finned tubes

Expansion joints are used in all kinds of different sectors and in a huge range of different industrial contexts. Essentially, wherever there is a need to control pipework movement expansion joints are required.




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