H55 (15%) 400 58 380 55 9 61 60 . . . . . . H80 (35%) 470 68 455 66 2 73 66 . . . . . . (a) At 10 8 cycles as determined by the rotating-beam test (b) At 0.5% extension under load Table 44 Typical room-temperature and low-temperature (cryogenic) properties of C19400 Tensile strength Yield strength at 0.2% offset Temper MPa ksi MPa ksi Elongation in 50 mm (2 in.), % Room-temperature properties O61 325 47 170 25 28 H02 405 59 360 52 15 H04 455 66 405 59 10 Cryogenic properties: -196 °C (-320 °F) O61 475 69 195 28 38 H02 570 83 425 62 30 Table 45 Typical elevated-temperature properties of annealed C19400 strip Test temperature Tensile strength, min Yield strength at 0.2% offset, min Creep strength, min (a) Stress-rupture stress, min (b) °C °F MPa ksi MPa ksi MPa ksi MPa ksi Ambient 341 49.5 150 22.0 . . . . . . . . . . . . 95 200 313 45.4 144 20.9 . . . . . . . . . . . . 120 250 300 43.5 144 20.9 190 27.6 . . . . . . 150 300 289 41.9 139 20.2 171 24.8 171 24.9 175 350 276 40.1 135 19.6 143 20.8 148 21.4 205 400 266 38.6 131 19.0 124 18.0 125 18.1 230 450 253 36.8 131 19.0 110 16.0 105 15.2 260 500 235 34.1 127 18.4 96 13.9 82 11.9 290 550 219 31.8 123 17.8 84 12.2 65 9.4 (a) Stress causing secondary creep of 0.01% per 1000 h in a 10,000-h test. (b) Stress causing rupture in 100,000 h (extrapolated from 10,000 h) Table 46 Annealing response of C19400 strip Annealing temperature Tensile strength Yield strength at 0.2% offset °C °F MPa ksi MPa ksi Elongation in 50 mm (2 in.), % Electrical conductivity, %IACS H04 temper 100 212 460 67 450 65 3 66 205 400 450 65 435 63 5 67 315 600 440 64 415 60 9 68 370 700 415 60 385 56 12 68 425 800 415 60 360 52 14 72 480 900 400 59 345 50 16 71 540 1000 385 56 310 45 17 64 (a) 595 1100 350 51 220 32 23 52 650 1200 315 46 140 20 33 51 705 1300 310 45 115 17 34 49 760 1400 305 44 110 16 36 48 815 1500 305 44 110 16 36 48 H10 temper 100 212 510 74 490 71 3 65 205 400 495 72 460 67 5 66 315 600 485 70 415 60 8 67 370 700 330 48 170 25 25 71 425 800 325 47 145 21 27 74 480 900 315 46 140 20 28 69 540 1000 315 46 140 20 31 64 (a) 595 1100 310 45 130 19 33 58 650 1200 305 44 130 19 34 52 705 1300 295 43 115 17 34 49 760 1400 290 42 110 16 35 48 815 1500 285 41 105 15 35 48 (a) Conductivity may be restored to about 70% IACS by holding at 500 °C (925 °F) for 1 h. Hardness. See Table 43. Elastic modulus. Tension, 121 GPa (17.5 × 10 6 psi); shear, 45.5 GPa (6.6 × 10 6 psi) Charpy impact strength. Plate, O61 temper: longitudinal, 144 J (106 ft · lbf) at -196 °C (-320 °F); transverse, 99 J (73 ft · lbf) at -196 °C (-320 °F) Fatigue strength. See Table 43. Creep and stress-rupture properties. See Table 45. Mass Characteristics Density. 8.78 g/cm 3 (0.317 lb/in. 3 ) at 20 °C (68 °F) Thermal Properties Liquidus temperature. 1090 °C (1990 °F) Solidus temperature. 1080 °C (1980 °F) Coefficient of linear thermal expansion. 16.3 μm/m · K (9.0 μin./in. · °F) at 20 to 300 °C (68 to 572 °F) Specific heat. 385 J/kg · K (0.092 Btu/lb · °F) at 20 °C (68 °F) Thermal conductivity. 260 W/m · K (150 Btu/ft · h · °F) at 20 °C (68 °F) Electrical Properties Electrical conductivity. Volumetric, at 20 °C (68 °F). O60 temper: 40% IACS nominal. H14 temper: 50% IACS min. All other tempers: 65% IACS nominal, 60% IACS min. In O50, O80, and H02 tempers, 75% IACS min conductivity may be available depending on mill processing restrictions. Electrical resistivity. At 20 °C (68 °F). O60 temper: 43.1 nΩ · m nominal. H14 temper: 34.5 nΩ · m max. All other tempers: 26.6 nΩ · m nominal; may be only 23.0 nΩ · m max under certain circumstances Magnetic Properties Magnetic permeability. 1.1 Chemical Properties General corrosion behavior. Very corrosion resistant and essentially immune to stress-corrosion cracking Fabrication Characteristics Machinability. 20% of C36000 (free-cutting brass) Formability. Suited to forming by blanking, coining, coppersmithing, drawing, bending, heading and upsetting, hot forging and pressing, piercing and punching, roll threading and knurling, shearing, spinning, squeezing, and stamping Weldability. Joining by soldering, brazing, and gas tungsten arc welding: excellent Annealing temperature. See Table 46. C19500 97Cu-1.5Fe-0.1P-0.8Co-0.6Sn Commercial Names Trade name. Strescon Chemical Composition Composition limits. 1.3 to 1.7 Fe, 0.6 to 1.0 Co, 0.08 to 0.12 P, 0.40 to 0.7 Sn, 0.20 Zn max, 0.02 Al max, 0.02 Pb max, 0.05 max other (each), 0.10 max other (total), bal Cu Applications Typical uses. Electrical springs, sockets, terminals, connectors, clips, and other current-carrying parts requiring strength and exceptional softening resistance. Applications requiring excellent hot and cold workability, high strength, and high conductivity Mechanical Properties Tensile properties. See Table 47. Table 47 Typical mechanical properties of C19500 Tensile strength Yield strength at 0.2% offset Temper MPa ksi MPa ksi Elongation in 50 mm (2 in.), % Hardness, HRB O61 360 min 52 min 170 min 25 min 25 min . . . O50 520-590 75-85 395-530 57-77 11-17 81-89 H02 565-620 82-90 505-605 73-88 3-13 85-88 H08 605-670 88-97 585-650 85-94 2-5 87-90 Hardness. See Table 47. Elastic modulus. Tension, 119 GPa (17.3 × 10 6 psi) Mass Characteristics Density. 8.92 g/cm 3 (0.322 lb/in. 3 ) at 20 °C (68 °F) Thermal Properties Liquidus temperature. 1090 °C (1995 °F) Solidus temperature. 1085 °C (1985 °F) Coefficient of linear thermal expansion. 16.9 μm/m · K (9.4 μin./in. · °F) at 20 to 300 °C (68 to 572 °F) Thermal conductivity. 199 W/m · K (115 Btu/ft · h · °F) at 20 °C (68 °F) Electrical Properties Electrical conductivity. Volumetric, 50% IACS at 20 °C (68 °F), annealed Electrical resistivity. 34.4 nΩ · m at 20 °C (68 °F) Fabrication Characteristics Machinability. 20% of C36000 (free-cutting brass) Formability. Suited to forming by bending, coining, drawing, and stamping C19520 97.97Cu-0.75Fe-1.25Sn-0.03P Chemical Composition Composition limits. 0.5 to 1.5 Fe, 0.5 to 1.5 Sn, 0.01 to 0.35 P, 96.6 Cu min Applications Typical uses. Lead frames Mechanical Properties Tensile properties. See Table 48. Table 48 Nominal mechanical properties of C19520 strip Tensile strength Temper MPa ksi Elongation in 50 mm (2 in.), % Hardness, HV H01 415 60 20 125 H02 440 64 10 140 H04 460 67 4 150 H06 515 75 2 160 H08 585 85 . . . 170 H10 640 93 . . . 180 H12 660 96 min . . . 190 min Hardness. See Table 48. Elastic modulus. 117 GPa (17 × 10 6 psi) Mass Characteristics Density. 8.8 g/cm 3 (0.318 lb/in. 3 ) at 20 °C (68 °F) Thermal Properties Coefficient of linear thermal expansion. 16.7 μm/m · K (9.3 μin./in. · °F) at 20 to 300 °C (68 to 572 °F) Thermal conductivity. 173 W/m · K (100 Btu/ft · h · °F) at 20 °C (68 °F) Electrical Properties Electrical conductivity. Volumetric, 40% IACS at 20 °C (68 °F) Electrical resistivity. 49.3 nΩ · m at 20 °C (68 °F) C19700 99.15Cu-0.6Fe-0.2P-0.05Mg Chemical Composition Composition limits. 0.3 to 1.2 Fe, 0.1 to 0.4 P, 0.01 to 0.2 Mg, 0.2 max each Sn and Zn, 0.05 max each Co, Mn, Ni, and Pb, 99.8 min Cu + named elements Applications Typical uses. Electrical and electronic connectors, circuit breaker components, fuse clips, cable shielding, and lead frames, Generally suited to applications requiring excellent formability combined with high strength and conductivity Mechanical Properties Tensile properties. See Table 49. Table 49 Nominal mechanical properties of C19700 strip Tensile strength Yield strength Temper MPa ksi MPa ksi Elongation in 50 mm (2 in.), % Hardness, HRB H02 380 55 315 46 10 68 H04 450 65 415 60 6 70 H06 480 70 470 68 3 73 H08 500 73 490 71 2 75 Hardness. See Table 49. Elastic Modulus. 121 GPa (17.5 × 10 6 psi) Mass Characteristics Density. 8.83 g/cm 3 (0.319 lb/in. 3 ) at 20 °C (68 °F) Thermal Properties Liquidus temperature. 1086 °C (1987 °F) Solidus temperature. 1069 °C (1956 °F) Coefficient of linear thermal expansion. 15.8 μm/m · K (8.8 μin./in. · °F) at 20 to 100 °C (68 to 212 °F); 16.8 μm/m · K (9.3 μin./in. · °F) at 20 to 200 °C (68 to 392 °F); 17.3 μm/m · K (9.6 μin./in. · °F) at 20 to 300 °C (68 to 572 °F) Thermal conductivity. 320 W/m · K (185 Btu/ft · h · °F) at 20 °C (68 °F) Electrical Properties Electrical conductivity. Volumetric, 80% IACS at 20 °C (68 °F) Electrical resistivity. 21.6 nΩ · m at 20 °C (68 °F) Fabrication Characteristics Machinability. 20% of C36000 (free-cutting brass) Formability. Excellent capacity for both cold and hot forming Weldability. Soldering and brazing: excellent Annealing temperature. 450 to 600 °C (840 to 1110 °F) Hot-working temperature. 750 to 950 °C (1400 to 1740 °F) C21000 95Cu-5Zn Commercial Names Previous trade name. Gilding metal, 95%; CA210 Specifications ASTM. Rolled bar, plate, sheet, and strip: B 36. Wire: B 134 SAE. J463 Government. Wire: QQ-W-321. Sheet and strip: MIL-C- 21768 Chemical Composition Composition limits. 94.0 to 96.0 Cu, 0.05 Pb max, 0.05 Fe max, bal Zn Effect of zinc content on properties. See Fig. 21. Fig. 21 Variation of properties with zinc content for wrought copper-zinc alloys Applications Typical uses. Coins, medals, tokens, bullet jackets, firing- pin supports, shells, fuse caps and primers, emblems, jewelry plaques, base for gold plate, base for vitreous enamel Mechanical Properties Tensile properties. See Table 50 and Fig. 22. Table 50 Typical mechanical properties of C21000 Tensile strength Yield strength (a) Hardness Shear strength Temper MPa ksi MPa ksi Elongation in 50 mm (2 in.), % HRB HR30T MPa ksi OS050 anneal (0.050 mm grain size) 235 34 69 10 45 46 HRF . . . . . . . . . OS035 anneal (0.035 mm grain size) 240 35 76 11 45 52 HRF 4 195 28 OS015 anneal (0.015 mm grain size) 260 38 97 14 42 60 HRF 15 205 30 Quarter hard 290 42 220 32 25 38 44 220 32 Half hard 330 48 275 40 12 52 54 235 34 Hard 385 56 345 50 5 64 60 255 37 Extra hard 420 61 380 55 4 70 64 270 39 Spring 440 64 400 58 4 73 66 275 40 Note: Values for flat products. 1 mm (0.04 in.) thick. (a) At 0.5% extension under load Fig. 22 Variation of tensile strength with annealing temperature for C21000. Data are for 1 mm (0.04 in.) thick ready-to- finish strip that was cold rolled 50% then annealed 1 h at the indicated temperature. Recrystallization temperature, 370 °C (700 °F) for initial grain sizes of 0.015 to 0.070 mm Shear strength. See Table 50. Hardness. See Table 50. Elastic modulus. Tension, 115 GPa (17 × 10 6 psi); shear, 44 GPa (6.4 × 10 6 psi) Velocity of sound. 3.78 km/s at 20 °C (68 °F) Structure Crystal structure. Face-centered cubic alpha; lattice parameter, 0.3627 nm Minimum interatomic distance. 0.2564 nm Mass Characteristics Density. 8.86 g/cm 3 (0.320 lb/in. 3 ) at 20 °C (68 °F) Thermal Properties Liquidus temperature. 1065 °C (1950 °F) Solidus temperature. 1050 °C (1920 °F) Coefficient of linear thermal expansion. 18 μm/m · K (10μin./in. · °F) at 20 to 300 °C (68 to 572 °F) Specific heat. 380 J/kg · K (0.09 Btu/lb · °F) at 20 °C (68 °F) Thermal conductivity. 234 W/m · K (135 Btu/ft · h · °F) at 20 °C (68 °F) Electrical Properties Electrical conductivity. Volumetric, 56% IACS at 20 °C (68 °F), annealed Electrical resistivity. 31 nΩ · m at 20 °C (68 °F), annealed; temperature coefficient, 0.0231 nΩ · m per K at 20 °C (68 °F). Liquid phase: 244 nΩ · m at 1100 °C (2010 °F), 266 nΩ · m at 1300 °C (2370 °F) Magnetic Properties Magnetic susceptibility. -1.0 × 10 -6 to -12.5 × 10 -6 (SI units) Optical Properties Spectral reflectance. 90% for λ= 578 nm Fabrication Characteristics Machinability. 20% of C36000 (free-cutting brass) Recrystallization temperature. 370 °C (700 °F) for 50% reduction and 0.015 to 0.070 mm initial grain size. See Fig. 22. Annealing temperature. 425 to 800 °C (800 to 1450 °F) Hot-working temperature. 750 to 875 °C (1400 to 1600 °F) C22000 90Cu-10Zn Commercial Names Previous trade name. Commercial bronze, 90%; CA220 Specifications ASTM. Rolled bar, plate, and sheet: B 36. Strip: B 36 and B 130. Cups, bullet jacket: B 131. Tube, rectangular waveguide: B 372. Seamless tube: B 135. Wire: B 134 SAE. Rolled bar, plate, sheet, strip, and seamless tube: J463 (CA220) Government. Wire: QQ-W-321; MIL-W-6712. Bands, projectile rotating: MIL-B-18907. Blanks, rotating band for projectiles: MIL-B-20292. Cups, bullet jacket: MIL- C-3383. Sheet and strip: MIL-C-21768. Tube, rectangular waveguide: MIL-W-85. Seamless tube for microwave use: MIL-T-52069 Chemical Composition Composition limits. 89.0 to 91.0 Cu, 0.05 Pb max, 0.05 Fe max, bal Zn Consequence of exceeding impurity limits. See general statement for brasses under C26000. Effect of zinc content on properties. See Fig. 21. Applications Typical uses. Architectural: etching bronze, grillwork, screen cloth, weather stripping. Hardware: escutcheons, kickplates, line clamps, marine hardware, rivets, screws, screw shells. Munitions: primer caps, rotating bands. Miscellaneous: compacts, lipstick cases, costume jewelry, ornamental trim, screen wire, base for vitreous enamel, waveguides Mechanical Properties Tensile properties. See Table 51 and Fig. 23 Table 51 Typical mechanical properties of C22000 Tensile strength Yield strength (a) Hardness Shear strength Temper MPa ksi MPa ksi Elongation in 50 mm (2 in.), % HRF HR30T MPa ksi Flat products, 1 mm (0.040 in.) thick [...]... 34 OS0 25 350 51 130 19 55 72 36 240 35 OS0 15 3 65 53 150 22 54 78 43 250 36 H01 370 54 2 75 40 43 55 HRB 54 250 36 H02 420 61 3 45 50 23 70 HRB 65 2 75 40 H04 51 0 74 4 15 60 8 80 HRB 70 2 95 43 H06 58 5 85 4 25 62 5 87 HRB 74 310 45 H08 6 25 91 4 25 62 3 90 HRB 76 3 25 47 H10 6 75 98 4 35 63 3 91 HRB 77 Rod, 25 mm (1.0 in.) diameter OS 050 330 48 110 16 65( b) 65 2 35 34 H00 (6%) 380 55 2 75 40 48(c) 55 36 Wire,... 41 OS0 25 2 95 43 220 32 OS0 15 310 45 230 33 H00 3 45 50 25 240 35 H01 4 05 59 11 260 38 H02 2 95 72 8 2 95 43 H04 6 05 88 6 330 48 H08 7 25 1 05 370 54 Tubing, 25 mm (1.0 in.) outside diameter × 1. 65 mm (0.0 65 in.) wall thickness OS 050 2 75 40 83 12 55 60 15 OS0 15 3 05 44 1 25 18 45 71 38 H 55 ( 15% ) 3 45 50 2 75 40 30 55 HRB 54 H80 ( 35% ) 4 85 70 3 65 53 8 77 HRB... 1 15 17 57 68 31 2 35 34 95 14 OS0 25 350 51 130 19 55 72 36 2 35 34 OS0 15 3 65 53 150 22 54 78 43 240 35 1 05 15 H01 370 54 2 75 40 43 55 HRB 54 250 36 H02 4 25 62 360 52 23 70 HRB 65 2 75 40 1 25 18 H04 52 5 76 4 35 63 8 82 HRB 73 3 05 44 1 45 21 H06 59 5 86 450 65 5 83 HRB 76 3 15 46 H08 650 94 3 91 HRB 77 330 48 160 23 H10 680 99 3 93 HRB 78 Wire, 2 mm (0.08 in.) diameter OS 050 330 48 110 16... 2 05 30 OS0 25 290 42 1 05 15 44 64 HRF 2 15 31 OS0 15 3 05 44 110 16 42 68 HRF 220 32 H01 3 25 47 255 37 25 47 HRB 2 35 34 H02 370 54 3 25 47 12 61 HRB 250 36 H04 455 66 3 85 56 5 73 HRB 2 75 40 H06 4 95 72 4 15 60 4 78 HRB 290 42 H08 54 5 79 4 25 62 4 82 HRB 3 05 44 Wire, 2 mm (0.08 in.) diameter OS 050 2 75 40 90 13 44 200 29 OS0 35 2 85 41 1 05 15 42 2 05 30 OS0 25 2 95 43 1 15 17 40 2 15 31 OS0 15 310 45 1 25 18 38 220... 230 33 OS0 35 3 45 50 1 25 18 60 2 35 34 OS0 25 360 52 1 45 21 58 240 35 OS0 15 370 54 160 23 58 250 36 H00 400 58 3 15 46 35 260 38 H01 4 85 70 3 95 57 20 290 42 H06 855 124 4 H08 8 95 130 3 4 15 60 150 22 Tube, 25 mm (1 in.) outside diameter × 1.6 mm (0.0 65 in.) wall thickness OS 050 3 25 47 1 05 15 65 64 26 OS0 25 360 52 140 20 55 75 40 H80 54 0 78 440... 48 56 10 2 15 31 OS 050 2 75 40 83 12 47 59 14 2 15 31 OS0 35 2 85 41 97 14 46 63 22 2 15 31 OS0 25 2 95 43 110 16 44 66 28 220 32 OS0 15 310 45 1 25 18 42 71 38 230 33 H01 3 45 50 270 39 25 55 HRB 54 240 35 H02 3 95 57 340 49 12 65 HRB 60 255 37 H04 4 85 70 3 95 57 5 77 HRB 68 290 42 H06 54 0 78 420 61 4 83 HRB 72 3 05 44 H08 58 0 84 4 35 63 3 86 HRB 74 3 15 46 48 2 15 31 Wire, 2 mm (0.08 in.) diameter OS0 35 2 85 41...OS 050 255 37 69 10 45 53 6 1 95 28 OS0 35 260 38 83 12 45 57 12 2 05 30 OS0 25 270 39 97 14 44 60 16 2 15 31 OS0 15 280 41 1 05 15 42 65 26 220 32 H01 310 45 240 35 25 42 HRB 44 230 33 H02 360 52 310 45 11 58 HRB 56 240 35 H04 420 61 370 54 5 70 HRB 63 260 38 H06 460 67 400 58 4 75 HRB 67 2 75 40 H08 4 95 72 4 25 62 3 78 HRB 69 290 42 M20 270 39 97 14 44 60 2 15 31 Flat products, 6 mm (0. 250 in.) thick OS0 35. .. H02 420 61 3 45 50 18 70 HRB 64 270 39 H04 51 0 74 4 05 59 7 82 HRB 71 2 95 43 H08 6 25 91 450 65 3 91 HRB 77 330 48 Wire, 2 mm (0.08 in.) diameter OS 050 3 05 44 55 220 32 OS0 35 3 15 46 50 OS0 15 3 45 50 47 230 33 H00 3 85 56 27 255 37 H01 470 68 12 290 42 H02 56 5 82 8 3 25 47 H04 740 107 5 3 65 53 H06 800 116 4 H08 860 1 25 3 4 15 60 (a) At 0 .5% extension... Temper MPa ksi Elongation in 50 mm (2 in.), % Hardness, HRF Shear strength MPa ksi ksi Flat products, 1 mm (0.04 in.) thick M20 370 54 1 45 21 45 85 2 75 40 O61 370 54 1 45 21 45 80 2 75 40 H00 4 15 60 240 35 30 55 HRB 290 42 H02 4 85 70 3 45 50 10 75 HRB 3 05 44 Rod, 25 mm (1 in.) diameter M30 360 52 140 20 52 78 270 39 O61 370 54 1 45 21 50 80 2 75 40 H01 4 95 72 3 45 50 25 78 310 45 (a) 0 .5% extension under load... Wire, 2 mm (0.08 in.) diameter OS 050 330 48 110 16 64 230 33 OS0 35 3 45 50 1 25 18 60 2 35 34 OS0 25 360 52 1 45 21 58 240 35 OS0 15 370 54 160 23 55 250 36 H00 400 58 3 15 46 35 260 38 H01 4 85 70 3 95 57 20 290 42 H02 6 05 88 420 61 15 H04 760 110 8 380 55 H06 8 25 120 4 H08 8 85 128 3 4 15 60 (a) At 0 .5% extension under load (b) 75% reduction in area (c) 70% reduction . min 25 min 25 min . . . O50 52 0 -59 0 75- 85 3 95- 530 57 -77 11-17 81-89 H02 56 5-620 82-90 50 5-6 05 73-88 3-13 85- 88 H08 6 05- 670 88-97 58 5- 650 85- 94 2 -5 87-90 Hardness OS0 15 3 05 44 110 16 42 68 HRF 220 32 H01 3 25 47 255 37 25 47 HRB 2 35 34 H02 370 54 3 25 47 12 61 HRB 250 36 H04 455 66 3 85 56 5 73 HRB 2 75 40 H06 4 95 72 4 15 60 4 78 HRB 290 42 H08 54 5 79 4 25. 2 15 31 OS0 25 2 95 43 110 16 44 66 28 220 32 OS0 15 310 45 1 25 18 42 71 38 230 33 H01 3 45 50 270 39 25 55 HRB 54 240 35 H02 3 95 57 340 49 12 65 HRB 60 255 37 H04 4 85 70 3 95 57 5 77 HRB