The chemical composition of UNSR 30188(HA188)
Tech Center 2025-07-29 6
Haynes Alloy No.188 is a Co-Ni-Cr-based solid solution strengthened deformable superalloy with a service temperature of less than 1100℃. Adding 14% of ω(W) tungsten to the alloy for solid solution strengthening endows the alloy with excellent comprehensive performance. Adding a relatively high content of chromium and a trace amount of lanthanum endows the alloy with excellent high-temperature oxidation resistance. The alloy has good cold and hot working plasticity and welding and other process properties, and is suitable for making aero engine parts that require high strength below 980℃ and oxidation resistance below 1100℃. The main products include cold-rolled thin plates, hot-rolled medium plates, bars, forgings and wires, etc.
The density ρ of Haynes Alloy No.188 is 9.09g/cm³.
