Machinery's Handbook, 31st Edition
Wrought CopperS AND COPPER Alloys Table 3. Properties and Applications of Wrought Coppers and Copper Alloys Table 3. (Continued) Properties and Applications of Wrought
519
Strength (ksi) Elonga tion in 2 in. (%) Tensile Yield
Nominal Composi tion (%) 97.4 Cu, 2.4 Fe, 0.13 Zn, 0.04 P 97.0 Cu, 1.5 Fe, 0.6 Sn, 0.10 P, 0.80 Co
Machin ability Rating a
Name and Number
Fabricating Characteristics and Typical Applications
Excellent hot and cold workability. Uses: circuit-breaker components, contact springs, electrical clamps, electrical springs, electrical terminals, flexible hose, fuse clips, gaskets, gift hollow ware, plug contacts, rivets, and welded condenser tubes. Excellent hot and cold workability. Uses: electrical springs, sockets, terminals, connectors, clips, and other current-carrying parts requiring strength. Excellent cold workability, good hot workability for blanking, coining, drawing, piercing and punching, shearing, spinning, squeezing and swaging, stamping. Uses: coins, medals, bullet jackets, fuse caps, primers, plaques, jewelry base for gold plate. Fabricating characteristics same as C21000, plus heading and upsetting, roll threading and knurling, hot forging and pressing. Uses: etching bronze, grillwork, screen cloth, weatherstripping, lipstick cases, compacts, marine hardware, screws, rivets. Fabricating characteristics same as C21000, plus heading and up-setting, roll threading and knurling. Uses: angles, channels, chain, fasteners, costume jewelry, lipstick cases, powder compacts, base for gold plate. Excellent cold workability; good hot formability. Uses: weather-stripping, conduit, sockets, fasteners, fire extinguishers, condenser and heat-exchanger tubing, plumbing pipe, radiator cores. Excellent cold workability. Fabricating characteristics same as C23000. Uses: battery caps, bellows, musical instruments, clock dials, pump lines, flexible hose. Excellent cold workability. Uses: radiator cores and tanks, flashlight shells, lamp fixtures, fasteners, screws, springs, grillwork, stencils, plumbing accessories, plumbing brass goods, locks, hinges, ammunition components, plumbing accessories, pins, rivets. Excellent cold workability. Fabricating characteristics same as C23000. Uses: same as C26000 except not used for ammunition. Excellent hot formability and forgeability for blanking, forming and bending, hot forging and pressing, hot heading and upsetting, shearing. Uses: architectural, large nuts and bolts, brazing rod, condenser plates, heat-exchanger and condenser tubing, hot forgings.
C19400
45-76 24-73 32
20
C19500
80-97 65-95 15
20
95.0 Cu, 5.0 Zn 34-64 10-58 45
C21000 Gilding, 95%
20
C22000 Commercial bronze, 90%
90.0 Cu, 10.0 Zn 37-72 10-62 50
20
C22600 Jewelry bronze, 87.5%
87.5 Cu, 12.5 Zn 39-97 11-62 46
30
C23000 Red brass, 85%
85.0 Cu, 15.0 Zn 39-105 10-63 55
30
C24000 Low brass, 80%
80.0 Cu, 20.0 Zn 42-125 12-65 55
30
C26000, C26100, C26130, C26200 Cartridge brass, 70%
70.0 Cu, 30.0 Zn 44 -130 11-65 66
C26800, C27000 Yellow brass
65.0 Cu, 35.0 Zn 46-128 14-62 65
30
C28000 Muntz metal, 60%
60.0 Cu, 40.0 Zn 54-74 21-55 52
40
C31400 Leaded commercial bronze C31600 Leaded commercial bronze, nickel-bearing
89.0 Cu, 1.9 Pb, 0.1 Zn 89.0 Cu, 1.9 Pb, 1.0 Ni, 8.1 Zn 66.0 Cu, 0.5 Pb, 33.5 Zn
37-60 12-55 45
80 Excellent machinability. Uses: screws, machine parts, pickling crates.
Good cold workability; poor hot formability. Uses: electrical connectors, fasteners, hardware, nuts, screws, screw-machine parts. Combines good machinability and excellent cold workability. Fabricated by forming and bending, machining, piercing and punching. Uses: pump and power cylinders and liners, ammunition primers, plumbing accessories.
37-67 12-59 45
80
C33000 Low-leaded brass tube
47-75 15-60 60
60
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