342 



Copper and Copper-base Alloys 



BRASSES, TIN — Continued 

 General : 



annealing, 132, 138 



cold working, 132 



corrosion resistance, 132 



hot working, 132 



structural, 132 



uses, 132 

 Pen Metal (83.5% Cu, 1.6% Sn) 

 Room Temperature: 



apparent elastic limit, 140, 141 



elongation, per cent, 140, 142, 143 



hardness, 140, 142, 143 



stress-strain, 143 



tensile strength, 140, 141, 143 



yield strength, 140-142 

 General : 



annealing, 132, 141 



cold working, 132 



corrosion resistance, 132 



hot working, 132 



structural, 132 



uses, 132 

 Admiralty Metal (71% Cu, 1% Sn) 

 Room Temperature: 



apparent elastic limit, 144-146, 148 



coefRcient of expansion, 144 



density, 144 



electrical conductivity, 144 



elongation, per cent, 144-148, 298, 312 



endurance limit, 312 



hardness, 144-148, 298, 312 



impact strength, 298 



modulus of elasticity, 144 



reduction of area, per cent, 14 , 298 



specific gravity, 144 



stress-strain, 147 



tensile strength, 144-148, 298, 312 



thermal conductivity, 144 



yield strength, 144-147, 298 

 Subroom Temperature: 



impact strength, 298 

 Elevated Temperature: 



coefficient of expansion, 144 



creep strength, 144 



elongation, per cent, 148 



melting point, 144 



reduction of area, per cent, 148 



tensile strength, 148 

 General: 



annealing, 146 



cold working, 132 



corrosion resistance, 132 



hot working, 132 



structural, 132 



uses, 132 

 Tobin Bronze (60% Cu, 0.76% Sn) (Roman Bronze, Chamet 



Bronze) 

 Room Temperature: 



apparent elastic limit, 149, 150 



coefficient of expansion, 149 



density, 149 



elastic Hmit, 151 



electrical conductivity, 149 



elongation, per cent, 149-151, 298, 312 



endurance hmit, 149, 312 



hardness, 149-151, 298, 312 



impact strength, 298 



modulus of elasticity, 149, 312 



BRASSES, TIN— Continued 



reduction of area, per cent, 149-151, 312 



tensile strength, 149-151, 298, 312 



thermal conductivity, 149 



torsional strength, 151 



yield strength, 149-151, 298, 312 

 Subroom Temperature: 



impact strength, 298 

 Elevated Temperature: 



coefficient of expansion, 149 



creep strength, 149 



elastic limit, 151 



elongation, per cent, 151 



melting point, 149 



reduction of area, per cent, 151 



tensile strength, 151 



torsional strength, 151 

 General: 



annealing, 133, 150 



cold working, 133 



corrosion resistance, 133 



hot working, 133, 149 



machineability, 133 



structural, 133, 149 



uses, 133 

 Hard Naval Brass (61% Cu. 0.75% Sn) 

 Room Temperature: 



apparent elastic hmit, 158, 159 



coefficient of expansion, 158 



corrosion fatigue, 312 



density, 158 



electrical conductivity, 158 



elongation, per cent, 158, 160, 161, 312 



endurance limit, 312 



hardness, 158, 160, 161 



modulus of elasticity, 158 



reduction of area, per cent, 312 



shear strength, 161 



tensile strength, 158, 159, 161, 312 



thermal conductivity, 158 



yield strength, 158-160 

 Elevated Temperature: 



coefficient of expansion, 158 



melting point, 158 

 General: 



annealing, 133, 159 



cold working, 133 



corrosion resistance, 133 



hot working, 133 



machineability, 133 



structural, 133 



use, 133 

 Government Naval Brass (60% Cu, 0.75% Sn) 

 Room Temperature: 



apparent elastic hmit, 152-154, 156 



coefficient of expansion, 152 



density, 152 



electrical conductivity, 152 



elongation, per cent, 152-157, 298, 312 



endurance limit, 152, 312 



hardness, 152-157, 312 



modulus of elasticity, 152, 312 



reduction of area, per cent, 152, 156, 157, 298, 312 



shear strength, 157 



stress-strain, 155 



tensile strength, 152-156, 157, 298, 312 



thermal conductivity, 152 



yield strength, 152-157, 298, 312 



