《Incoloy alloy 27-7MO》.pdf

wwwwww..ssppeecciiaallmmeettaallss..ccoomm INCOLOY® alloy 27-7MO (UNS S31277) is an PPhhyyssiiccaall aanndd TThheerrmmaall PPrrooppeerrttiieess advanced 7% molybdenum super-austenitic stainless steel offering corrosion resistance in most TTaabbllee 22 - Physical Properties environments superior to 6% molybdenum super- austenitic stainless steels. In many environments alloy 27-7MO offers resistance approaching that of much Density at room temperature, mill annealed conditon more highly alloyed materials such as INCONEL alloys g/cm³8.02 625, 22, and C-276. lb/in³0.289 Alloy 27-7MO products typically contain 27% Permeability at 200 oersted (15.9 kA/m) at room temperature nickel, 22% chromium, 7.2% molybdenum, and 0.34% Annealed1.004 nitrogen. Its limiting chemical composition is presented Permeability at 200 oersted (15.9 kA/m) at -22°F (-30°C) in Table 1. The alloys content of nickel and nitrogen Annealed1.01 50% cold worked1.01 O produce a stable austenitic structure. By virtue of its content of molybdenum, chromium, and nitrogen, alloy Specific Heat, J/kg °C454 27-7MO offers excellent resistance to pitting and Btu/lb °F0.109 M crevice corrosion. The nic