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Oxygen-free Copper (OF), UNS C10200, OS025 temper, flat products and tubing
Categories: Metal; Nonferrous Metal; Copper Alloy; Wrought Copper
Material Notes: Copper content in composition table includes silver (minimum 99.95% Cu+Ag). Test specimens: flat product, 1 mm thick; tubing, 25 mm (1 in) OD, 1.65 mm (0.065 in) wall thickness.

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 (flat products) B48, B133, B152, B187, B272, B370, B432; (tubing) B68, B75, B88, B111, B188, B280, B359, B372, B395, B447; 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
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Physical PropertiesOriginal ValueComments
Density 8.94 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell F 45
Tensile Strength, Ultimate 235 MPa
Tensile Strength, Yield 76.0 MPa
@Strain 0.5 %
Elongation at Break 45 %in 50 mm (2 in)
Creep Strength 0.700 MPa
@Temperature 260 °C		Creep rate of 10-6%/h
 3.00 MPa
@Temperature 205 °C		Creep rate of 10-6%/h
 3.00 MPa
@Temperature 260 °C		Creep rate of 10-5%/h
 10.0 MPa
@Temperature 205 °C		Creep rate of 10-5%/h
 11.0 MPa
@Temperature 150 °C		Creep rate of 10-6%/h
 12.0 MPa
@Temperature 260 °C		Creep rate of 10-4%/h
 25.0 MPa
@Temperature 150 °C		Creep rate of 10-5%/h
 33.0 MPa
@Temperature 205 °C		Creep rate of 10-4%/h
 55.0 MPa
@Temperature 150 °C		Creep rate of 10-4%/h
 110 MPa
@Temperature 150 °C		Creep rate of 10-3%/h
 125 MPa
@Temperature 120 °C		Creep rate of 10-3%/h
 130 MPa
@Temperature 150 °C		Creep rate of 10-2%/h
 150 MPa
@Temperature 120 °C		Creep rate of 10-2%/h
 150 MPa
@Temperature 150 °C		Creep rate of 10-1%/h
 165 MPa
@Temperature 120 °C		Creep rate of 10-1%/h
 170 MPa
@Temperature 43.0 °C		Creep rate of 10-3%/h
 185 MPa
@Temperature 43.0 °C		Creep rate of 10-2%/h
 200 MPa
@Temperature 43.0 °C		Creep rate of 10-1%/h
Rupture Strength 106 MPa
@Temperature 200 °C,
Time 3.60e+6 sec
 130 MPa
@Temperature 200 °C,
Time 360000 sec
 147 MPa
@Temperature 150 °C,
Time 3.60e+6 sec
 161 MPa
@Temperature 150 °C,
Time 360000 sec
Modulus of Elasticity 115 GPa
Poissons Ratio 0.31
Fatigue Strength 76.0 MPa
@Thickness 1.00 mm,
# of Cycles 1.00e+9 		flat
Machinability 20 %UNS C36000 (free-cutting brass) = 100%
Forgeability 65 %UNS C37700 (forging brass) = 100%
Shear Modulus 44.0 GPa
Shear Strength 160 MPa
 
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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MC10200c9 / 10374

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