ASTM A179 Extruded Fin Tubes With AL1060 Fins , Extruidos Tubos Aletados
Specifications For Various Types Of Finned Tubes
Type | Description | Base tube | Fin specification (mm) | ||
O.D. (mm) | Fin pitch | Fin height | Fin thick | ||
Embedded | G-type fin tube | 16-63 | 2.1~5 | <17 | ~0.4 |
Extruded | Single metal / Combined metal | 8-51 | 1.6~10 | <17 | 0.2-0.4 |
Low fin tube / T-type fin tube | 10-38 | 0.6~2 | <1.6 | ~0.3 | |
Bamboo tube / corrugated tube | 16-51 | 8.0~30 | <2.5 | ~0.3 | |
Wound | L / KL / LL fin type | 16-63 | 2.1~5 | <17 | ~0.4 |
String | String fin tube | 25-38 | 2.1-3.5 | <20 | 0.2-0.5 |
U-type | U-type fin tube | 16-38 | / | / | / |
Welding | HF-welding fin tube | 16-219 | 3~25 | 5~30 | 0.8-3 |
H / HH type fin tube | 25-63 | 8~30 | <200 | 1.5-3.5 | |
Studed fin tube | 25-219 | 8~30 | 5~35 | φ5-20 |
Extruded Finned Tubes
Extruded finned tubes are bimetallic tubes whose outer aluminium surface is finned by cold plastic deformation.The general materials of base tubes about the extruded finned tube are carbon steel, copper, alloy, stainless steel ; the general materials of fins about the extruded finned tube are copper, aluminum 1060/1070, aluminum alloy 6063/6061.Therefore, it is generally divided into four categories: steel aluminum composite finned tubes; copper aluminum composite finned tubes; pure aluminum composite finned tubes, pure copper composite finned tube.
Advantages of Steel Aluminum Composite Extruded Finned Tubes
This page let's talk about ASTM A179 carbon steel extruded finned tubes with AL1060 fins.
Detailes of ASTM A179 Base Tubes ( Generally with min. wall thickness )
ASTM A179 This specification covers minimum-wall-thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus.
Chemical Composition (%) max
Grade | C | Mn | P | S |
A179 | 0.06-0.18 | 0.27-0.63 | 0.035 | 0.035 |
Mechanical Properties
Grade | Tensile Strength min | Yield Strength min | Elongation in 2" or 50mm min |
A179 | 47ksi (325 MPa) | 26ksi (180 MPa) | 35% |