BÖHLER FOX CN 29/9 is a rutile basic electrode of the 29 percent Cr and 9 percent Ni type, that is AWS E312. The maker describes it as a repair and maintenance electrode that offers outstanding operating characteristics and weld metal of high strength combined with high crack resistance when welding problem steels or dissimilar joints.
The deposit work hardens, which also makes it suitable for wear resisting build-ups on clutches, gear wheels and shafts. The maker also allows the electrode for repair welding of tools. It carries DB and SEPROZ approvals and the CE mark.
- Classification EN ISO 3581-A: E 29 9 R 1 2
- AWS classification A5.4 / SFA-5.4: E312-16
- Coating: rutile
- Current: AC/DC+
- Diameters: 2.5 / 3.2 / 4.0 mm
- Lengths: 300 and 350 mm
- Approvals: DB (30.014.11), SEPROZ, CE
When you do not know what the steel is, this electrode gives you the best chance of a joint without cracks, because the high ferrite takes heavy dilution. Weld with a short arc, thin beads and let the joint cool between them. Grind the hard deposit rather than cutting it. Under a working layer use it as an intermediate layer, not as the material for the whole thickness.
