The Coppers 



17 



TABLE 5 

 PHOSPHORIZED ARSENICAL COPPER 



General Data — Tube 

 Copper, 99.61%; phosphorus, 0.024%; arsenic, 0.35% 



Property 



Tensile strength, p.s.i. (000 omitted) 



Apparent elastic hmit, p.s.i. (000 omitted) 



Elongation, %in2Ln 



Rockwell hardness F, Jlg-io- ball, 60-kg. load 



Endurance limit" (at 20 X 10^ reversals), p.s.i. (000 omitted) 



Melting point, °F 



Young's modulus of elasticity, p.s.i 



Density, lb. per cu. in 



Coefficient of expansion, per °C. from 25-300°C 



Electrical conductivity, % I.A.C.S., 68°F 



Thermal conductivity, B.t.u. per sq. ft. per ft. per hr. per °F., 68°F 

 Specific gravity 



Hard" 



60 

 55 



4 



Soft" 



37 



9 



43 



42 

 15 



1978 

 16,000,000 



0.323 

 0.0000174 



45.0 

 102 



« Extruded and cold-drawn to ; 



<> 900°F. anneal for 1 hr. 



« Annealed H hr. at 1290°F. 



-£70 



t 



o 60 



o. 



p- 



< 50 

 -c 



a 40 



X- 



"1^30 

 -t 20 



00 



^ 10 



CD 500 600 700 800 900 1000 1100 1200 1300 

 Anneah'ng Temp. in Deg.F. flHr. a\ Temp!) 



Chaet 44. — The effect of annealing on the tensile strength and 

 apparent elastic limit of phosphorized arsenical copper condenser tube 

 previously cold-drawn 70 per cent (reduction of area) (99.61 % copper, 

 0.35 % arsenic, 0.024 % phosphorus). 



-:ioo 

 :^ 

 o 90 



UJ 



^80 

 u 

 m 70 



o 60 



CO 



',-50 

 g 40 

 D 30 

 _ 20 

 i 10 



500 600 700 800 900 1000 1100 1200 1300 

 Annealing Temp, in Deg.F, (1 Hnat Temp.) 



Chart 45. — The effect of annealing on the Rockwell hardness, 

 percentage elongation in 2 in., and grain size of phosphorized arsenical 

 copper condenser tube previously cold-drawn 70 per cent (reduction of 

 area) (99.61 % copper, 0.35 % arsenic, 0.024 % phosphorus). 



