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
523
Strength (ksi) Elonga tion in 2 in. (%) Tensile Yield
Nominal Composi tion (%) 95.5 Cu, 3.5 Al, 1.0 Si 95.0 Cu, 2.8 Al, 1.8 Si, 0.40 Co 91.2 Cu, 7.0 Al, 1.8 Si
Machin ability Rating a
Name and Number
Fabricating Characteristics and Typical Applications
Excellent cold workability; fair hot formability. Fabricated by cold heading. Uses: components for pole-line hardware, cold-headed nuts for wire and cable connectors, bolts and screw products. Excellent cold workability and hot formability. Uses: springs, switch parts, contacts, relay springs, glass sealing, and porcelain enameling. Excellent hot formability. Fabricated by hot forming, forging, machining. Uses: valve stems, gears, marine hardware, pole-line hardware, bolts, nuts, valve bodies, and components. Excellent hot and cold workability. Fabricated by forming and bending, heading and upsetting, hot forging and pressing, roll threading and knurling, squeezing and swaging. Uses: hydraulic pressure lines, anchor screws, bolts, cable clamps, cap screws, machine screws, marine hardware, nuts, pole-line hardware, rivets, U-bolts, electrical conduits, heat-exchanger tubing, welding rod. Excellent hot and cold workability. Fabricated by blanking, drawing, forming and bending, heading and upsetting, hot forging and pressing, roll threading and knurling, shearing, squeezing and swaging. Uses: similar to C65100 including propeller shafts. Excellent cold formability. Fabricated by blanking, bending, forming, stamping, welding. Uses: brass products resistance welded by spot, seam, and butt welding. Excellent hot formability. Fabricated by hot forging and pressing, machining. Uses: bushings, gears, connecting rods, shafts, wear plates. Excellent hot workability. Fabricated by hot forging and pressing, hot heading and upsetting. Uses: clutch discs, pump rods, shafting, balls, valve stems and bodies. Excellent cold workability for forming and bending. Uses: condenser, evaporator- and heat-exchanger tubing, condenser tubing plates, distiller tubing, ferrules. Excellent hot and cold formability. Fabricated by blanking, drawing, forming and bending, shearing and stamping. Uses: springs, switches, contacts, relays, drawn parts. Fabricating characteristics same as C68800. Uses: contacts, relays, switches, springs, drawn parts. Excellent hot formability for fabrication by forging, screw-machine operations. Uses: valve stems where corrosion resistance and high strength are critical. Excellent cold workability; good hot formability. Fabricated by forming, bending, and welding. Uses: condensers, evaporators, heat exchangers, ferrules, salt water piping, lithium bromide absorption tubing, shipboard condenser intake systems.
C63600
60-84
64
40
C63800
82-130 54- 114
36
C64200
75-102 35-68 32
60
C65100 Low-silicon bronze, B
98.5 Cu, 1.5 Si
40-105 15-71 55
30
C65500 High-silicon bronze, A
97.0 Cu, 3.0 Si
56-145 21-71 63
30
70.0 Cu, 28.8 Zn, 1.2 Mn 58.5 Cu, 36.5 Zn, 1.2 Al, 2.8 Mn, 1.0 Sn 58.5 Cu, 1.4 Fe, 39.0 Zn, 1.0 Sn, 0.1 Mn 77.5 Cu, 20.5 Zn, 2.0 Al, trace As 73.5 Cu, 22.7 Zn, 3.4 Al, 0.40 Co 73.3 Cu, 3.4 Al, 0.6 Ni, 22.7 Zn 81.5 Cu, 14.5 Zn, 4.0 Si 92.4 Cu, 1.5 Fe, 5.5 Ni, 0.6 Mn
C66700 Manganese brass
45.8- 100
12- 92.5 60
30
C67400
70-92 34-55 28
25
C67500 Manganese bronze, A
65-84 30-60 33
30
C68700 Aluminum brass, arsenical
60
27
55
30
C68800
82-129 55- 114
36
C69000
82-130 52- 117
35
C69400 Silicon red brass
80-100 40-57 25
30
C70400 Copper nickel, 5%
38-77 40-76 46
20
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