Metrode Ultramet-310H description: Thermet 310H is designed to weld HK40 which is one of the standard materials for centrifugally cast tubes operating at around 1000°C. These alloys are used in reformer and steam cracker coils in chemical and petrochemical plants. Also for components such as billet skids, calinating tubes, kiln nose segments, conveyor rolls, and furnace structural items in the cement, ceramic and steel industries.