Processing

Wieland-K65 processing Wieland-K65 processing

The processing properties of Wieland-K65 are similar to those of copper. The joining properties are also comparable.

Therefore, K65 tubes and K65 fittings can be joined using the simple and reliable brazing technology which is already common and proven practice for copper in the refrigeration industry.

There is a recommendation from Umicore Brazetec regarding the selection of a suitable brazing solder.

Recommended brazing solders K65

Outer diameter Wall thickness Minimum bending radius
inch mm mm mm
3/8" 9,52 0,65 43
1/2" 12,70 0,85 52
5/8" 15,87 1,05 63
3/4" 19,05 1,30 75
7/8" 22,23 1,50 98
1 1/8" 28,57 1,90 115
1 3/8" 34,92 2,30 not defined
1 5/8" 41,27 2,70 not defined
2 1/8" 53,97 3,55 not defined
The dimensions mentioned here can be cold bent with suitable bending equipment and bending segments that are precisely tailored to the outside diameter. Hot bending is not recommended.
Industrial bending machines also enable tighter bending radii.
Bending of hairpins is possible on suitable bending equipment.