Niobium Fastener

Niobium fasteners are available at HEXON include screw, bolt, stud, threaded rod, nut, washer and custom made special forms according to DIN, ISO, ASME, JIS and other international specifications. We can supply pure unalloyed Niobium, Nb-Zr, Nb-Ti, Nb-C103 alloy or other special Niobium alloy that customers require.

During production of Niobium fasteners, comprehensive manufacturing methods are applied ONLY in order to guarantee the precision that our customers expect.

●  Lathing and CNC lathing - for surface and threads

●  Milling and CNC milling - for screw’s head

●  Drilling and punching - for washers

●  Threads rolling - for threads

Finished niobium fasteners will be appropriately annealed to relief residual stress and inspected by Go/no go gauge for every piece.

Common types

Heads of bolt and screw - hexagon, hex flange, spherical, cap, square, pan, countersunk, tapered, button

Threads of bolt and screw - full threaded, half threaded

Drive inserts of screw- hex socket, square socket, slotted, torx, cross recessed

Stud – threaded, double end threaded

Nut - hex, hex flange, hex thin, square, cap

Washer - plain, flat, spring

Major grades

Unalloyed Niobium (UNSR04200, UNS R04210)

Niobium-zirconium alloy (UNS R04251, UNS R04261, Nb-Zr10%)

RRR grade niobium (UNS R04XXX)

Niobium-titanium alloy

Niobium C-103

Typical specifications

DIN (912, 931, 933, 934, 125, etc.)

ISO (4014, 4017, 4032, 4035, etc.)

ASME (B18.2.1, B18.2.2, B18.2.3, etc)