BMS 7-171 is a Waspaloy Boeing Material Specification for “FORGINGS, CORROSION AND HEAT RESISTANT ALLOY, NICKEL BASE, (Waspaloy) CONSUMABLE ELECTRODE OR VACUUM INDUCTION”
Fighter Jet Metals works with Aerospace OEMs to maintain the BMS7-171 specification for Waspaloy Bars and Forgings. If you are currently managing a project that requires BMS7-171 please reach out to us so we can assist.
Material Composition
19 Cr – 14 Co -4Mo- 3 Ti 1.3 Al
WASPALOY is a nickel based age hardenable alloy that possesses high temperature strength while still having a good corrosion resistance, especially to oxidation. WASPALOY can be used at temperatures up to 650°C (1200°F) which is critical rotating applications. WASPALOY is used in gas turbine engine components, missile systems, shafts, spacers, seals, rings, casings, fasteners and many other uses in engine hardware, airframe assemblies.
Boeing Quality per BMS 7-171
BMS stands for “Boeing Material Specification” and originate from Boeing’s headquarters in Seattle, WA. For more information on BMS7-171 please refer to:
D1-4426 Approved Process Lists
As a Tier 1 Aerospace company, Boeing holds its subcontractors to the same standards by ensuring they source BMS7-171 from approved sources. This creates accountability and ensures the highest quality standards are achieved in the manufacturing process. An excerpt from Boeing’s quality website states the following:
