EN CC491K (CuSn5Zn5Pb5-C) Leaded Tin Bronze
Copper Alloys
Property Overview
Density8.9g/cm³
Elastic Modulus110GPa
Tensile Strength220MPa
Yield Strength120MPa
Brinell Hardness73HB
Maximum Service Temperature160°C
Chemical Composition
C
CuSn5Zn5Pb5-C ( CC491K ) Copper-tin-lead alloy Chemical composition. Equivalents of CuSn5Zn5Pb5-C ( CC491K ). Standards.1 Mechanical Properties. Hardness%
NI
0 to 2.0%
SI
0 to 0.010%
P
0 to 0.1%
S
0 to 0.1%
CU
81 to 87%
AL
0 to 0.010%
PB
4.0 to 6.0%
SB
0 to 0.25%
SN
4.0 to 6.0%
ZN
4.0 to 6.0%
FE
0 to 0.3%
Mechanical
A - Min. elongation at fracture (%) (GM)
6
A - Min. elongation at fracture (%) (GS) or (GZ) or (GC)
13
Elastic (Young's, Tensile) Modulus
110 GPa
Elongation at Break
13 %
Poisson's Ratio
0.34
R p0.2 0.2% proof strength (MPa) (GM)
110
R p0.2 0.2% proof strength (MPa) (GS)
90
R p0.2 0.2% proof strength (MPa) (GZ) or (GC)
110
Rm - Tensile strength (MPa) (GM)
220
Rm - Tensile strength (MPa) (GS)
200
Rm - Tensile strength (MPa) (GZ) or (GC)
250
Shear Modulus
40 GPa
Tensile Strength: Ultimate (UTS)
260 MPa
Tensile Strength: Yield (Proof)
120 MPa
Hardness
Brinell Hardness
73
Brinell hardness (HBW): (GM) or (GZ) or (GC)
65
Brinell hardness (HBW): (GS)
60
Physical
Density
8.9 g/cm 3
Thermal
Latent Heat of Fusion
190 J/g
Maximum Temperature: Mechanical
160 °C
Melting Completion (Liquidus)
980 °C
Melting Onset (Solidus)
900 °C
Specific Heat Capacity
370 J/kg-K
Thermal Conductivity
71 W/m-K
Thermal Diffusivity
22 mm 2 /s
Thermal Expansion
19 µm/m-K
Thermal Shock Resistance
9.3 points
Electrical
Electrical Conductivity: Equal Volume
15 % IACS
Electrical Conductivity: Equal Weight (Specific)
15 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
27 MJ/m 3
Resilience: Unit (Modulus of Resilience)
67 kJ/m 3
Stiffness to Weight: Axial
6.7 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
8.1 points
Strength to Weight: Bending
10 points
Environmental
Base Metal Price
31 % relative
Embodied Carbon
3.1 kg CO 2 /kg material
Embodied Energy
51 MJ/kg
Embodied Energy
51 MJ/kg 22 x 10 3 BTU/lb
Embodied Water
350 L/kg
Embodied Water
350 L/kg 42 gal/lb
Registered Designations & Aliases
CC491KCuSn5Zn5Pb5-CCuSn5Zn5Pb5-CEN CC491K (CuSn5Zn5Pb5-C) Leaded Tin Bronze
Standards
EN 1982 EN 1982: 2008 Copper and copper alloys. Ingots and castings
EN 1982 EN 1982: Copper and copper alloys - Ingots and castings