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Tungsten Heavy Alloy

Grade Charts

Grade	Application
HA170	HA170 is the most ductile and readily machinable grade in the tungsten heavy alloy family. Common application areas include counterbalancing and inertial damping weights for the aviation and aerospace industries, crankshaft and chassis weights for auto racing, bucking bars for rivet setting, and radiation shielding.
HA175	HA175 is commonly used to produce chatter-resistant boring bars, grinding quills, and tool shanks as well as radiation shielding components.
HA180	HA180 is often applied where size is a factor in the placement of balance or ballast weights. Other applications include radiation shields and collimators of x-ray or gamma ray beams.
HA185	The densest of the Ni-Fe binder alloys, HA185 is the preferred grade for radiation shielding in the medical imaging industry.
HA170C	Employing copper as a substitute for iron in the binder phase, HA170C is nonmagnetic and ideal for radiation shielding where the shield is in close proximity to a magnetic field.
HA180C	HA180C is a denser version of HA170C that offers somewhat greater shielding efficiency in situations where large shields in a nonmagnetic alloy are needed.

Federal Carbide Company • One Eagle Ridge Road • Tyrone, Pennsylvania 16686 USA
814-684-7600 / 800-631-3640 Fax: 814-684-9400 • inquiry@federalcarbide.com • www.federalcarbide.com