UNS C77300 (RBCuZn-D) Filler Metal
Copper Alloys
Property Overview
Density7.9g/cm³
Elastic Modulus110GPa
Tensile Strength540MPa
Yield StrengthUnknown
Brinell HardnessUnknown
Maximum Service Temperature130°C
Chemical Composition
NI
9.0 to 11%
SI
0.040 to 0.25%
P
0 to 0.25%
CU
46 to 50%
AL
0 to 0.010%
PB
0 to 0.050%
RES.
Residuals res. | | 0 to 0.5%
RESIDUALS RES.
0 to 0.5%
ZN
37.9 to 45%
Mechanical
Elastic (Young's, Tensile) Modulus
110 GPa
Poisson's Ratio
0.3
Shear Modulus
42 GPa
Tensile Strength: Ultimate (UTS)
540 MPa
Physical
Density
7.9 g/cm 3
Thermal
Brazing Temperature
940 to 980 °C
Latent Heat of Fusion
180 J/g
Maximum Temperature: Mechanical
130 °C
Melting Completion (Liquidus)
940 °C
Melting Onset (Solidus)
920 °C
Specific Heat Capacity
390 J/kg-K
Thermal Expansion
20 µm/m-K
Thermal Shock Resistance
17 points
Electrical
Electrical Conductivity: Equal Volume
5.5 % IACS
Electrical Conductivity: Equal Weight (Specific)
6.3 % IACS
Calculated
Stiffness to Weight: Axial
7.7 points
Stiffness to Weight: Bending
20 points
Strength to Weight: Axial
19 points
Strength to Weight: Bending
19 points
Environmental
Base Metal Price
26 % relative
Embodied Carbon
3.5 kg CO 2 /kg material
Embodied Energy
56 MJ/kg
Embodied Energy
56 MJ/kg 24 x 10 3 BTU/lb
Embodied Water
310 L/kg
Embodied Water
310 L/kg 38 gal/lb
Registered Designations & Aliases
C77300RBCuZn-DUNS C77300 (RBCuZn-D) Filler Metal