BÖHLER FOX CEL+ is a cellulosic coated electrode of the E6010 type for vertical-down welding of large diameter pipelines. The manufacturer recommends it above all for the root pass, on DC with the electrode positive, welded either downhill or uphill.
The list of base steels covers P235T2 to P355T2, the pipe grades L210NB to L415NB and L290MB to L415MB, as well as S235JR, S275JR and S235J2. The electrode bridges the gap and gives a powerful arc that lays a smooth, well fused root at high travel speed. The manufacturer also stresses a wide safety margin against hollow bead and undercut. The material is approved for sour gas installations after the HIC test to NACE TM-02-84.
- Classification EN ISO 2560-A: E 38 2 C 2 1
- Classification EN ISO 2560-B: E4310 A
- AWS classification A5.1 / SFA-5.1: E6010
- Coating: cellulosic
- Current: DC+/DC-
- Diameters: 2.5 / 3.2 / 4.0 / 5.0 mm
- Lengths: 250, 300 and 350 mm
- Approvals: TÜV (19380.), CE
Weld the root with full pressure, the electrode pushed into the gap, and keep the same speed all the way round. Travelling too slowly gives a high, convex root bead and inclusions, travelling too fast ends in lack of fusion at the toes. Set the root gap and the root face to the procedure and not by eye, because with an arc this strong half a millimetre changes the picture of the weld. Keep the coating in the original packaging and do not put it in an oven meant for basic electrodes.
