UNS C70250 (CW112C) Nickel-Silicon Copper
Alloy Steels
TM00 (mill annealed)
Property Overview
Density8.9g/cm³
Elastic Modulus120GPa
Tensile Strength540MPa
Yield Strength420MPa
Brinell HardnessUnknown
Maximum Service Temperature210°C
Chemical Composition
C
CuNi3Si1 ( CW112C ) Low alloyed copper alloy Chemical composition. Equivalents of CuNi3Si1 ( CW112C ). Standards.1 Mechanical Properties. Hardness%
NI
2.2 to 4.2%
MN
0 to 0.1%
SI
0.25 to 1.2%
CU
92.7 to 97.5%
MG
0.050 to 0.3%
PB
0 to 0.050%
RES.
Residuals res. | | 0 to 0.5%
RESIDUALS RES.
0 to 0.5%
ZN
0 to 1.0%
Mechanical
Elastic (Young's, Tensile) Modulus
120 GPa
Elongation at Break
19 %
Poisson's Ratio
0.34
Shear Modulus
44 GPa
Shear Strength
330 MPa
Tensile Strength: Ultimate (UTS)
540 MPa
Tensile Strength: Yield (Proof)
420 MPa
Physical
Density
8.9 g/cm 3
Thermal
Latent Heat of Fusion
220 J/g
Maximum Temperature: Mechanical
210 °C
Melting Completion (Liquidus)
1100 °C
Melting Onset (Solidus)
1080 °C
Specific Heat Capacity
390 J/kg-K
Thermal Conductivity
170 W/m-K
Thermal Diffusivity
49 mm 2 /s
Thermal Expansion
17 µm/m-K
Thermal Shock Resistance
19 points
Electrical
Electrical Conductivity: Equal Volume
40 % IACS
Electrical Conductivity: Equal Weight (Specific)
41 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
95 MJ/m 3
Resilience: Unit (Modulus of Resilience)
750 kJ/m 3
Stiffness to Weight: Axial
7.4 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
17 points
Strength to Weight: Bending
17 points
Environmental
Base Metal Price
31 % relative
Embodied Carbon
2.9 kg CO 2 /kg material
Embodied Energy
45 MJ/kg
Embodied Energy
45 MJ/kg 19 x 10 3 BTU/lb
Embodied Water
310 L/kg
Embodied Water
310 L/kg 37 gal/lb
Registered Designations & Aliases
C70250CW112CCW112CCuNi3Si1UNS C70250 (CW112C) Nickel-Silicon Copper
Standards
ASTM B422 ASTM B422: Standard Specification for Copper-Aluminum-Silicon-Cobalt Alloy, Copper-Nickel-Silicon-Magnesium Alloy, Copper-Nickel-Silicon Alloy, Copper-Nickel-Aluminum-Magnesium Alloy, and Copper- Nickel-Tin Alloy Sheet and Strip
EN 12163 EN 12163: 1998 Copper and copper alloys. Rod for general purposes
EN 12165 EN 12165: 1998 Copper and copper alloys. Wrought and unwrought forging stock
EN 12420 EN 12420: 1999 Copper and copper alloys. Forgings