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*ALLOY 220 COMMERCIAL BRONZE

COMMON FABRICATION PROCESSES AND TYPICAL USES

CHEMICAL COMPOSITION

	Cu	Fe	Pb	Zn
Min/Max	89.0-91.0	0.05	0.05	Rem.
Nominal	90			10

COMMON FABRICATION PROCESSES FOR 220 COMMERCIAL BRONZE

Blanking, coining, drawing, etching, forming and bending, heading and upsetting, hot forging and pressing, piercing and punching, roll threading and knurling, shearing, spinning, squeezing and swaging, stamping

FABRICATION PROPERTIES

Joining Technique	Suitability
Soldering	Excellent
Brazing	Excellent
Oxyacetylene Welding	Good
Gas Shielded Arc Welding	Good
Coated Metal Arc Welding	Not Recommended
Spot Weld	Not Recommended
Seam Weld	Not Recommended
Butt Weld	Good
Capacity for Being Cold Worked	Excellent
Capacity for Being Hot Formed	Good
Machinability Rating: 20

Product Forms
Plate
Sheet
Strip
Rod
Tube
Wire

TYPICAL USES OF 220 COMMERCIAL BRONZE

Architecture
Weather stripping, screen cloth, ornamental trim, etching bronze, grill work
Builders Hardware
Kick plates, hardware
Consumer
Housing for lipstick compacts, compacts, costume jewelry, caskets, lipstick cases, ball point pens, chain links
Electrical
Wave guides, rotor bar - AC motors, cable wrap
Fasteners
Screw shells, bolts, line clamps, rivets, screws
Industrial
Base for vitreous enamel, escutcheons, flexible tube, studs, screen wire
Marine
Marine hardware
Ordnance
Small arms cartridges, artillery projectile rotating bands, press fit, primer caps, rotating bands
Plumbing
Plumbers' brass goods


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