Metal Alloys & Specialty Materials

The advantages over conventional MAG/HF welding are of decisive importance.

Fin tube is available in fin counts of 30, 32, 36 and 43 fins per inch (FPI)

Fin tube provides 3 times the external surface area of bare tube.

Fin surface is smooth without burrs and folds, which makes it difficult for fouling and easy for cleaning, low flowing resistance.

Beryllium Copper Alloys (C17200, C17300, C17500, C17510,C14500)
Physical Properties
Density (g/cm3): 8.36
Density before age hardening (g/cm3): 8.25
Elastic Modulus (kg/mm2 (103)): 13.40
Thermal Expansion Coefficient (20 °C to 200 °C m/m/°C): 17 x 10-6
Thermal Conductivity (cal/(cm-s-°C)): 0.25
Melting Range (°C): 870-980 °C

Stainless Steel Cladded Plate

304/304L, 316/316L stainless steel, single-melt (depending on size)

Used in boilers, furnaces and fired heaters. A continuous fin is attached to the base tube by high frequency electric resistance welding in order to give an efficient and thermally reliable bond.

TP304, TP316/316L, TP321, TP310S