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*ALLOY 173 BERYLLIUM COPPER

COMMON FABRICATION PROCESSES AND TYPICAL USES

CHEMICAL COMPOSITION

	Cu	Al	Be	Co	Si	Pb
Min/Max	Rem	.2	1.80-2.00	.20 min	0.2	.20-.6
Nominal	97.7		1.9			0.4

COMMON FABRICATION PROCESSES FOR 173 BERYLLIUM COPPER

Blanking, drawing, drilling, forming and bending, tapping, turning

FABRICATION PROPERTIES

Joining Technique	Suitability
Soldering	Good
Brazing	Good
Oxyacetylene Welding	Not Recommended
Gas Shielded Arc Welding	Good
Coated Metal Arc Welding	Good
Spot Weld	Good
Seam Weld	Fair
Butt Weld	Fair
Capacity for Being Cold Worked	Excellent
Capacity for Being Hot Formed	Good
Forgeability Rating: 0
Machinability Rating: 50

Product Forms
Bar
Plate
Strip
Rod
Shapes
Tube
Wire

TYPICAL USES OF 173 BERYLLIUM COPPER

Electrical
Contact bridges, electrical switch and relay blades, electric motor components, navigational instruments, clips, electrical connectors, relay parts, switch parts, fuse clips
Fasteners
Washers, screws, bolts, retaining rings, roll pins, lock washers, fasteners
Industrial
Spline shafts, pump parts, valves, non sparking safety tools, flexible metal hose, bushings, rolling mill parts, springs, pumps, shafts, springs, bellows, welding equipment, diaphragms, bourdon tubing
Ordnance
Firing pins


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