Hastelloy C276 butt welded elbows with the addition of tungsten
All of the common methods of welding can be used to weld Hastelloy C-276 alloy, although the oxyacetylene process is not recommended. Special precautions should be taken to avoid excessive heat input.
This Nickel-Molybdenum-Chromium alloy with the addition of Tungsten, has excellent corrosion resistance in a wide range of corrosive media and is especially resistant to pitting and crevice corrosion. Alloy C-276 resists the formation of grain boundary precipitates in weld heat-affected zones, hence its suitability for most chemical process applications in the as-welded condition. Hastelloy C276 is selected for resistance to wet chlorine gas, hypo-chlorites and many other aggressive chemicals.