UNS C76200 (CW405J) Nickel Silver
Other
OS035 (annealed to 0.035mm grain size)
Property Overview
Density8.2g/cm³
Elastic Modulus120GPa
Tensile Strength390MPa
Yield Strength220MPa
Brinell HardnessUnknown
Maximum Service Temperature170°C
Chemical Composition
NI
11 to 13.5%
MN
0 to 0.5%
CU
57 to 61%
PB
0 to 0.1%
RES.
Residuals res. | | 0 to 0.5%
RESIDUALS RES.
0 to 0.5%
ZN
24.2 to 32%
FE
0 to 0.25%
Mechanical
Elastic (Young's, Tensile) Modulus
120 GPa
Elongation at Break
41 %
Poisson's Ratio
0.31
Shear Modulus
44 GPa
Shear Strength
270 MPa
Tensile Strength: Ultimate (UTS)
390 MPa
Tensile Strength: Yield (Proof)
220 MPa
Hardness
Rockwell B Hardness
28
Rockwell F Hardness
75
Physical
Density
8.2 g/cm 3
Thermal
Latent Heat of Fusion
190 J/g
Maximum Temperature: Mechanical
170 °C
Melting Completion (Liquidus)
1030 °C
Melting Onset (Solidus)
980 °C
Specific Heat Capacity
390 J/kg-K
Thermal Conductivity
45 W/m-K
Thermal Diffusivity
14 mm 2 /s
Thermal Expansion
19 µm/m-K
Thermal Shock Resistance
13 points
Electrical
Electrical Conductivity: Equal Volume
9.0 % IACS
Electrical Conductivity: Equal Weight (Specific)
9.8 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
140 MJ/m 3
Resilience: Unit (Modulus of Resilience)
210 kJ/m 3
Stiffness to Weight: Axial
7.8 points
Stiffness to Weight: Bending
20 points
Strength to Weight: Axial
13 points
Strength to Weight: Bending
14 points
Environmental
Base Metal Price
29 % relative
Embodied Carbon
3.6 kg CO 2 /kg material
Embodied Energy
57 MJ/kg
Embodied Energy
57 MJ/kg 25 x 10 3 BTU/lb
Embodied Water
310 L/kg
Embodied Water
310 L/kg 37 gal/lb
Registered Designations & Aliases
C76200CW405JCW405JCuNi12Zn29UNS C76200 (CW405J) Nickel Silver
Standards
ASTM B122 ASTM B122: Standard Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar
ASTM B122 ASTM B122: Standard Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar Copper: Its Trade, Manufacture, Use, and Environmental Status, Gunter Joseph, 2001 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993
EN 1654 EN 1654: 1998 Copper and copper alloys. Strip for springs and connectors