BS 2HR 505:2010 Specification for nickel-chromium-iron-titanium-niobium-aluminium heat-resisting alloy round wire with a maximum diameter of 2 mm for thread inserts (nickel base Cr 15.5, Fe 7.0, Ti 2.5, Nb/Ta 0.95, Al 0.70)
standard by BSI Group, 11/30/2010