UNS C12900 Fire-Refined Silver-Bearing Tough Pitch Copper
Copper Alloys
OS025 (annealed to 0.025mm grain size)
Property Overview
Density9g/cm³
Elastic Modulus120GPa
Tensile Strength230MPa
Yield Strength82MPa
Brinell HardnessUnknown
Maximum Service Temperature200°C
Chemical Composition
NI
0 to 0.050%
CU
99.88 to 100%
AG
0 to 0.054%
AS
0 to 0.012%
BI
0 to 0.0030%
PB
0 to 0.0040%
SB
0 to 0.0030%
TE
0 to 0.025%
Mechanical
Elastic (Young's, Tensile) Modulus
120 GPa
Elongation at Break
45 %
Fatigue Strength
76 MPa
Poisson's Ratio
0.34
Shear Modulus
43 GPa
Shear Strength
160 MPa
Tensile Strength: Ultimate (UTS)
230 MPa
Tensile Strength: Yield (Proof)
82 MPa
Hardness
Rockwell F Hardness
45
Physical
Density
9.0 g/cm 3
Thermal
Latent Heat of Fusion
210 J/g
Maximum Temperature: Mechanical
200 °C
Melting Completion (Liquidus)
1080 °C
Melting Onset (Solidus)
1030 °C
Specific Heat Capacity
390 J/kg-K
Thermal Conductivity
380 W/m-K
Thermal Diffusivity
110 mm 2 /s
Thermal Expansion
17 µm/m-K
Thermal Shock Resistance
8.3 points
Electrical
Electrical Conductivity: Equal Volume
98 % IACS
Electrical Conductivity: Equal Weight (Specific)
98 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
83 MJ/m 3
Resilience: Unit (Modulus of Resilience)
29 kJ/m 3
Stiffness to Weight: Axial
7.2 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
7.3 points
Strength to Weight: Bending
9.4 points
Environmental
Base Metal Price
32 % relative
Embodied Carbon
2.6 kg CO 2 /kg material
Embodied Energy
41 MJ/kg
Embodied Energy
41 MJ/kg 18 x 10 3 BTU/lb
Embodied Water
330 L/kg
Embodied Water
330 L/kg 39 gal/lb
Registered Designations & Aliases
C12900UNS C12900 Fire-Refined Silver-Bearing Tough Pitch Copper