ASTM B619 / B626 Alloy B / B-2 Nickel Alloy Welded Pipe

The nickel-molybdenum alloy alloy B-2 has a very low content of carbon and silicon, which reduces the precipitation of carbon and other impurity phases in the heat affected zone of the weld, so that its welds are also sufficiently corrosion resistant. Alloy alloy B-2 has good corrosion resistance in reducing media, such as hydrochloric acid solutions of various temperatures and concentrations. It also has good corrosion resistance in sulfuric acid solutions (or with a certain amount of chloride ions) at medium concentrations. It can also be used in acetic and phosphoric acid environments. Alloys have the best corrosion resistance only when they are in a suitable metallurgical state and have a pure crystal structure.