EN CC497K (CuSn5Pb20-C) High-Leaded Tin Bronze
Copper Alloys
Property Overview
Density9.3g/cm³
Elastic Modulus93GPa
Tensile Strength180MPa
Yield Strength91MPa
Brinell Hardness55HB
Maximum Service Temperature130°C
Chemical Composition
C
CuSn5Pb20-C ( CC497K ) Copper-tin-lead alloy Chemical composition. Equivalents of CuSn5Pb20-C ( CC497K ). Standards.1 Mechanical Properties. Hardness%
NI
0.5 to 2.5%
MN
0 to 0.2%
SI
0 to 0.010%
P
0 to 0.1%
S
0 to 0.1%
CU
67.5 to 77.5%
AL
0 to 0.010%
PB
18 to 23%
SB
0 to 0.75%
SN
4.0 to 6.0%
ZN
0 to 2.0%
FE
0 to 0.25%
Mechanical
A - Min. elongation at fracture (%) (GC)
7
A - Min. elongation at fracture (%) (GS)
5
A - Min. elongation at fracture (%) (GZ)
6
Elastic (Young's, Tensile) Modulus
93 GPa
Elongation at Break
6.7 %
Poisson's Ratio
0.36
R p0.2 0.2% proof strength (MPa) (GC)
90
R p0.2 0.2% proof strength (MPa) (GS)
70
R p0.2 0.2% proof strength (MPa) (GZ)
80
Rm - Tensile strength (MPa) (GC)
180
Rm - Tensile strength (MPa) (GS)
150
Rm - Tensile strength (MPa) (GZ)
170
Shear Modulus
34 GPa
Tensile Strength: Ultimate (UTS)
190 MPa
Tensile Strength: Yield (Proof)
91 MPa
Hardness
Brinell Hardness
55
Brinell hardness (HBW): (GS)
45
Brinell hardness (HBW): (GZ) or (GC)
50
Physical
Density
9.3 g/cm 3
Thermal
Latent Heat of Fusion
160 J/g
Maximum Temperature: Mechanical
130 °C
Melting Completion (Liquidus)
870 °C
Melting Onset (Solidus)
800 °C
Specific Heat Capacity
330 J/kg-K
Thermal Conductivity
53 W/m-K
Thermal Diffusivity
17 mm 2 /s
Thermal Expansion
20 µm/m-K
Thermal Shock Resistance
7.2 points
Electrical
Electrical Conductivity: Equal Volume
9.0 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.7 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
10 MJ/m 3
Resilience: Unit (Modulus of Resilience)
45 kJ/m 3
Stiffness to Weight: Axial
5.5 points
Stiffness to Weight: Bending
16 points
Strength to Weight: Axial
5.6 points
Strength to Weight: Bending
7.8 points
Environmental
Base Metal Price
29 % relative
Embodied Carbon
3.0 kg CO 2 /kg material
Embodied Energy
48 MJ/kg
Embodied Energy
48 MJ/kg 21 x 10 3 BTU/lb
Embodied Water
370 L/kg
Embodied Water
370 L/kg 44 gal/lb
Registered Designations & Aliases
CC497KCuSn5Pb20-CCuSn5Pb20-CEN CC497K (CuSn5Pb20-C) High-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