Bohler CN 18/11-IG description: GTAW rod with controlled delta ferrite content (3-8 FN) for austenitic CrNi steels with increased carbon contents (e.g. 1.4948 / 304H), in the boiler, reactor and turbine fabrication. Approved in long-term condition up to +700C service temperature (300C in the case of wet corrosion). Steels to German material no. 1.4550 and 1.4551 which are approved for the high temperature range up to 550C, can also be welded.
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