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Oxygen-free Copper (OF), UNS C10200, M20 temper, flat products
Categories: Metal; Nonferrous Metal; Copper Alloy; Wrought Copper

Material Notes: Flat test specimens, 1mm and 6mm thick.

Applications: busbars, bus conductors, waveguides, hollow conductors, lead-in wires and anodes for vacuum tubes, vacuum seals, transistor components, glass-to-metal seals, coaxial cables, klystrons, microwave tubes, and rectifiers.

Processing: Excellent hot and cold workability; good forgeability. Fabricated by bending, coining, coppersmithing, drawing and upsetting, hot forging and pressing, knurling, roll threading, shearing, spinning, swaging, and stamping.

Corrosion Resistance: Good to excellent. Susceptible to galvanic corrosion when coupled with iron, aluminum, magnesium, lead, tin, and zinc. Good resistance to atmospheric, brackish water, sea water, and non-oxidizing acid corrosion, but avoid heating in oxidizing atmospheres or exposing to oxidizing acids, moist halogens, sulfides, ammonia, or solutions with ammonium ions.

UNS C10200 - ASTM B48, B133, B152, B187, B272, B370, B432; C103 (UK); CDA 102 OF; CEN CW009A; ISO Cu-OF R1337; JIS C1020 H3100 (sheet, plate) (Japan); QQ-C-576

Key Words: BS C110, C103, ISO Cu-OF R1337, CEN CW009A, oxygen free high conductivity copper (OFHC), CDA 102 OF, ASTM B48, B133, B152, B187, B272, B370, B432, Cu/cl NF A53301, C1020 H3100, C1020 H3140, flat products, plates, sheets, strips, QQ-C-576
Vendors: Visit metalmen for your metals needs. Products include special chemistry, tight tolerances, custom tempers, odd dimensions/forms, and small quantities. Phone 1-800-767-9494.

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Physical PropertiesOriginal ValueComments
Density 8.94 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell F 40
@Thickness 6.00 mm
 45
@Thickness 1.00 mm
flat specimen
Tensile Strength, Ultimate 220 MPa
@Thickness 6.00 mm
 235 MPa
@Thickness 1.00 mm
flat specimen
Tensile Strength, Yield 69.0 MPa
@Strain 0.5 %
Elongation at Break 45 %
@Thickness 1.00 mm
flat specimen
 50 %
@Thickness 6.00 mm
Modulus of Elasticity 115 GPa
Poissons Ratio 0.31
Machinability 20 %UNS C36000 (free-cutting brass) = 100%
Forgeability 65 %UNS C37700 (forging brass) = 100%
Shear Modulus 44.0 GPa
Shear Strength 150 MPa
@Thickness 6.00 mm
flat specimen
 160 MPa
@Thickness 1.00 mm
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.00000171 ohm-cm
@Temperature 20.0 °C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 17.0 µm/m-°C
@Temperature 20.0 - 100 °C
 17.3 µm/m-°C
@Temperature 20.0 - 200 °C
 17.7 µm/m-°C
@Temperature 20.0 - 300 °C
Specific Heat Capacity 0.385 J/g-°C
@Temperature 20.0 °C
Thermal Conductivity 391 W/m-K
@Temperature 20.0 °C
Melting Point 1083 °C
Annealing Point >= 700 °F
 
Processing PropertiesOriginal ValueComments
Annealing Temperature 375 - 650 °C
Hot-Working Temperature 750 - 875 °C
 
Component Elements PropertiesOriginal ValueComments
Copper, Cu >= 99.95 %includes silver (minimum 99.95% Cu+Ag)

References for this datasheet.

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