Tables 401 (.continued) -402. 

 TABLE 401. —Conducting Power of Alloys. 



329 



Group 3. 



Alloys. 



Weight % 



Volume % 



of first named. 



Co 



aX 106 



6X io9 



Variation per 100° C. 



Observed. 



Calculated. 



Gold-copper t 

 " t 



Gold-silver t . 



« t '. 



" t ". 



Gold-copper t 

 " t 



Platinum-silver t 

 " t 



Palladium-silver t 



Copper-silver t 



" t 

 " t 

 " t 

 " t 

 " t 



Iron-gold t 

 " " t . 

 " " t . 



Iron-copper t 



Phosphorus-copper t 

 " " t 



Arsenic-copper t 



" t . 

 " t . 



99-23 

 9P-55 



87-95 

 87-95 

 64.80 

 64.80 

 31-33 

 31-33 



34-83 

 1-52 



33-33 

 9.81 

 5.00 



25.00 



98.08 

 94.40 

 76.74 



42.75 

 7.14 



1-31 



13-59 

 9.80 

 4.76 



0.40 



2.50 

 0-9S 



5-40 



2.80 



trace 



98-36 

 81.66 



79.S6 

 79.86 

 52.08 

 52.08 

 19.86 

 19.86 



19.17 

 0.71 



19.65 



5-05 

 2.51 



23.2S 



98.35 

 95-17 

 77.64 

 46.67 

 8.25 

 1-53 



27-93 

 21.18 

 10.96 



0.46 



35-42 

 10.16 



13.46 



13.61 



9.48 



9-51 

 13.69 



13-73 



12.94 



53.02 



4.22 

 11.38 

 19.96 



5-38 



56-49 

 51-93 

 44.06 

 47.29 

 50.65 

 50.30 



1-73 

 1.26 

 1.46 



24.51 



4.62 

 14.91 



3-97 

 8.12 



38-52 



2650 

 749 



1090 

 1 140 



673 

 721 

 885 

 908 



3320 



330 



774 



1240 



324 



3450 

 3250 

 3030 

 2870 

 2750 

 4120 



3490 



2970 



487 



1550 



476 

 1320 



516 



736 



2640 



4650 



793 



1 1 60 



246 



495 



641 



570 

 7300 



656 

 1 150 



154 



7990 

 6940 

 6070 

 5280. 

 4360 

 8740 



7010 



1220 



103 



2090 



145 

 1640 



446 

 4830 



21.87 

 7.41 



10.09 

 10.21 

 6.49 

 6.71 

 8.23 

 8.44 



8.07 

 25.90 



3.10 



7.08 



11.29 



3-40 



26.50 



25-57 

 24.29 

 22.75 

 23.17 

 26.51 



27.92 



17-55 

 3-S4 



13-44 



23.22 



7-53 



9-65 

 9-59 

 6.58 

 6.42 

 8.6? 

 8.31 



8.18 

 25.86 



3.21 



7.25 



11.88 



4.21 



27.30 



25-41 

 21.92 

 24.00 



25-57 

 29.77 



14.70 

 11.20 

 13.40 



14.03 



* Annealed. 



t Hard-drawn. 



TABLE 402. — Allowable Carrying Capacity of Rubber-covered Copper Wires. 



(For inside wiring — Nat. Board Fire Underwriters' Rules.) 



Smithsonian Tables. 



