C10200 (ASTM B152) Oxygen Free Copper Alloy Data Specifications

Containing an insignificant amount of oxygen compared to ETP copper, C102 offers the highest purity copper available commercially. C102 or Oxygen-Free copper is ideal for applications where extremely high electrical conductivity and resistance to hydrogen embrittlement are vital. Where glass-to-metal seals are required this material also provides the added advantage of developing an adherent, non-scaling oxide at elevated temperatures. For more information contact Olin Brass Market Development Engineering at 618-258-5255, OlinBrass.com or email us at info@olinbrass.com.

 

Chemical Composition

Copper1 99.95% min
Oxygen 0.001% max

1Copper values includes Ag.

Physical Properties

  English Units Metrics Units
Density 0.323 ib/in3 @ 68oF 8.94 g/cm3
Thermal Conductivity 226 BTU-ft/ft2-hr-oF 390 W/mK
Electrical Resistivity 10.3 ohm circ mils/ft 1.71 microhm-cm
Electrical Conductivity (annealed) 101% IACS* 0.586 megamho/cm
Modulus of Elasticity 17,000,000 psi 117 kN/mm2
Coeff. of Thermal Expansion
  68-572oF (20-300oC) 9.8PPM/oF 17.64 PPM/oC

*International Annealed Copper Standard

Mechanical Properties

Temper1 Tensile Strength Yield Strength2 % Elongation2 Typical 90o Bend Formability GW/BW3
ksi N/mm2 ksi N/mm2
Annealed (Soft)4 26-38 180-260 10 70 35 - -
1/4 Hard 34-42 235-290 32 220 23 - 0.3
1/2 Hard 27-46 255-315 37 255 20 - 0.5
3/4 Hard 41-50 285-345 43 295 14 0.3 0.8
Hard 43-52 295-360 45 310 9 0.8 1.0
Extra Hard 47-56 325-385 50 345 4 1.3 1.5
Spring 50-58 345-400 52 360 3 1.8 2.0
Extra Spring 52 min 360 min 51 min 350 min 2 max

1Mechanical properties subject to change. All tempers listed are made to a Tensile Strength specification unless otherwise noted.
2Nominal Values in 2" (51mm)
3DATA FOR REFERENCE ONLY. R/T = Bend Radius/Material Thickness <0.016" (0.4mm) thick, 11/16 (17.5mm) wide.
4Annealed temper are manufactured to a grain size only, consult mill for additional info.