Bohler CN 23/12-MC description: Metal cored wire of type T 23 12 L / ER309L for welding dissimilar joints between high alloyed Cr- and CrNi(Mo)-steels and mild- or low alloyed steels. BOHLER CN 23/12-MC is designed for very good welding, wetting and feeding characteristics as well as good safety after dilution when welding dissimilar joints. Suitable for service temperatures between -120°C and +300°C. The wider arc, in comparison to solid wire, will reduce the risk of lack of fusion and is less sensitive against misalignment of edges and different gap widths.