Material Specifications
We have a number of fin and tube combinations available as per need and situation. Here under are some materials which we commonly use in radiators and heat exchangers.
Tube Types
Solder coated brass tube (small) Single Coated
Tube dimensions: 11.55 x 2.2
Wall thickness: 0.11
Solder coating thickness: 0.02
Soldering grade: 30/70
Soldering: Internal side
Solder coated brass tube (large) Double Coated
Tube dimensions: 12.7 x 3.175
Wall thickness: 0.12
Tube pitch: 0.625”
Solder coating thickness: 0.02-0.05
Soldering grade: 30/70
Soldering: Internal side and External side
Seamless copper tube round
Tube dimensions: 9.5 Ø
Wall thickness: 0.375 Rad
Wall thickness: 0.508 O/C
Seamless copper tube flat
Tube dimensions: 12.7 x 3.175
Wall thickness: 0.345 Rad
Wall thickness: 0.508 O/C
Seamless copper tube small
Tube dimensions: 6.35 Ø
Wall thickness: 0.711
Fin Types
Copper Zigzag
Air way lowered type
Gauge: 0.045mm
Crimps per inch: 14
Lower height: 8.5mm
Copper Flat Fin
Gauge: 0.065mm for double coated radiators and 0.055mm for single coated radiators
Dimple size: 8mm Ø
Dimple Depth: 1mm
Slot size: 12.7 x 3.175
Slot walls: 1.6mm
Fin Hamming: 2mm both side
Tin Coated Copper
Gauge: 0.065mm
Soldering grade: 30/70
Soldering thickness: 0.02-0.025
Dimple size: 8mm Ø
Dimple Depth: 1mm
Slot size: 12.7 x 3.175
Slot walls: 1.6mm
Fin Hamming: 2mm both side
Aluminum
Gauge: 0.008mm
Dimple size: 8mm Ø
Dimple Depth: 1mm
Slot size: 12.7 x 3.175
Slot walls: 1.6mm
Fin Hamming: 2mm both side
Mild Steel
Gauge: 0.15mm
Soldering grade: 30/70
Soldering thickness: 0.02-0.025
Dimple size: 8mm Ø
Dimple Depth: 1mm
Slot size: 12.7 x 3.175
Slot walls: 1.6mm
