Table 69 

 MECHANICAL PROPERTIES 



Copper Alloys — Three (or more) Components 



121 



Alloy and approx. 



composition 



per cent. 



Brass, Aluminum 

 Cu 57, Zn 42, Al i 

 CuSS,Zn4i, AI4 

 Cu 62.9, Zn 33.3, Al 

 Cu 70.5, Zn 26.4, Al 



Alum., Manganese 

 CU64, Zn 20, Al 3.1, 

 Mn 2.5, Fe 1.2. 



Alum., Vanadium. 

 Cu 58.5, Zn 38.5, Al 

 1.5, V 0.03 



Iron: 

 Cu 56, Zn 41.5, Fe 1 



Aich's Metal 



Cu6o,Zn38.2,Fei.8 

 Delta Metal 



Cu 57, Zn 42, Fe 1. 



Cu6s,Zn30, Fes.. 

 Iron, Tin: 

 Cu56.s,Zn40,Fei.5 



Sn i.ot 



Sterro metal: 



Cu 5S, Zn 42.4 Fe 

 1.8, Sno.8.. 



Lead or Yellow brass 



Cu 60 to 63.5, Zn35 



to 33.5, Pb s to 3- 

 Lead, Tin or 



Red brass 



Cu83,Zn7,Pb6,Sn 4 

 Cu78,Zno.s,Pbio, 



Sn 2 



Yellow brass: 



Cu 70, Zn 27, Pb 2, 



Sn 1 



Manganese or Man- 

 ganese bronze 

 Cu 58, Zn 39, Mn 



0.05 

 (Sn, Fe, Al, Pb.) 



Cu 60, Zn 39 Mn, 



tr 

 Specification values: 

 U. S. Navy, 46 B 



16a** 



U. S.N.,46 B 15a 

 Manganese Vana- 

 dium: 



Cu 58.6, Zn 38.5, Al 

 1.5 Mno.5, V0.03. 

 Nickel : Nickel sil- 

 ver, Cu 60.4, Zn 

 31-8, Ni 7.7. 

 German silver, 

 Cu 61.6, Zn 17.2, 



Ni 21. 1 



Cu 60.6, Zn 11.8 



Ni 27.3 



Fine wire: 



Cus8,Zn24, Nii8 



Nickel silver ft 



Nickel Tungsten: §§ 



Tin: 



Cu 61, Zn 38, Sn 1.. . 



Naval brass, as above 



Tobin bronze: as be 

 low 



Cu 58.2, Zn 39.5, 

 Sn 2.3 



Cuss, Zn43, Sn 2 



Condition. 



Cast 



Cast, tensilite* 



Cold drawn. 

 Cast 



Cast 



f Cast, sand. . 



\ Rolled, hard 



Rolled hard . 



Cast 



f Cast 



i Forged 



[ Hard drawn 

 Cast 



( Sheet ann.. . 

 \ Sheet hard. . 



Cast 



t 



Cast 



Cast§ 



Cast, sand II 

 Cast, chill . . 

 Rolled 



Rolledtt • • • 

 Cold drawn. 



Cast 



Drawn hard . 



Cast, sand. . . . 

 Ann. after roll 



ing. 

 Cast. 



Rolled . 



Castllll 



c *> 



at 



8.42 



■4 

 •s 



8.6 

 8.87 

 8.4 

 8.3 



8.3 



8.3 



8.4 



526 



518 



Tension, 

 kg/ mm 2 



35-6 



23.2 to 

 26.0 



21. 1 to 



24.6 

 22.5 to 



26.0II 



31-5 



24.6 

 35-6 



10.8 



132 



16.7 



26.0 

 17.6 



38.0 



40.0 

 60.0 

 56-2 

 33-0 



50.7 to 

 50-2 



31-7 

 42.2 

 45-5 



49.2 to 33,ooo to 70,000 to 



S2.8 



42-5 



53-6 



S8.S 



23.2 to 



27-5 



25-5 



42.9 



49.2 to 



52.7 



527 to 



563 



52. S 



49.2 

 492 



2S-3 



28.8 

 37-6 

 IOSS 



43-S 

 42.2 



56.0 

 48.4 



rt'S 



Tension, 

 lb/ in 2 



50,600 



37,ooo 



16,000 



30.000 to 



35. 0001 I 

 32,000 to 

 37,ooo! I 

 45,ooo 



35,ooo 

 50,600 



1 5 ,400 



18,800 

 23,700 



37,ooo 

 25,000 



57,ooo 

 85,400 

 80,000 

 47,000 



81,400 



72,000 to 

 84,000 



45,000 

 60,000 

 65,000 



75,000 



60,500 



76.200 



83,100 



33,000 to 



39,000 



42,000 



61,000 



30,000 



26,500 



70,000 to 

 7 5 ,000 

 75,000 to 

 80,000 

 75, 000 



70,000 

 70,000 



81,400 



36,000 



40,900 

 53,500 



150,000 



42,600 



62,000 

 60,000 



79,ooo 

 68.900 



■SE. 



IS 



"U eg 



Per cent. 



50.0 

 1^5 



50.0 

 16.0 



12.0 



35-oto 

 22.0 



10. o 

 17.0 



35-oto 35-oto 104 to 



30.0 to 

 26.0 

 50.0 

 30.0 



17.0 



30.0 to 

 22.0 

 32.0 to 

 25.0 

 25.0 



20.0 

 30.0 



2S.5 



32.0 



29.6 

 25.0 



350 

 48.0 



35-oto 

 25.0 



35-oto 

 30.0 



28.S 



32.0 to 

 25.0 

 34-o to 



28.0 

 28.0 



2S-I 



31.4 



32.0 

 370 



40.0 

 70.0 



Hardness. 



109 to 

 119 



ng 



109 to 

 ng 

 119 to 

 130 



18 to 

 19 



18 to 



tor Footnotes see page 1 20. 

 Smithsonian Tables. 



