Hydrogen Fueling Receptacle in the Toyota MIRAI Fuel Cell Vehicle
Applicant: Toyota Motor Corporation
Reason for selection: The material for the hydrogen dispenser nozzle for MIRAI, a fuel-cell vehicle,
is required to have mechanical properties free from effects of high-pressure
hydrogen and to have high strength for weight reduction.The automaker
and the material supplier concerned focused on stainless steel capable of
withstanding high-pressure hydrogen and retaining high ductility in an
environment of high-pressure hydrogen gas. The stainless steel grades selected were
cold rolled to enhance their strength and to improve their surface hardness,
and at the same time attention was paid to maintain their workability. Through
such efforts, the parties have succeeded in lowering costs and reducing the
product weight.
