EN CC493K (CuSn7Zn4Pb7-C) Bearing Bronze
Copper Alloys
Property Overview
Density8.9g/cm³
Elastic Modulus100GPa
Tensile Strength230MPa
Yield Strength140MPa
Brinell Hardness74HB
Maximum Service Temperature160°C
Chemical Composition
C
CuSn7Zn4Pb7-C ( CC493K ) Copper-tin-lead alloy Chemical composition. Equivalents of CuSn7Zn4Pb7-C ( CC493K ). 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
79 to 86%
AL
0 to 0.010%
PB
5.0 to 8.0%
SB
0 to 0.3%
SN
5.2 to 8.0%
ZN
2.0 to 5.0%
FE
0 to 0.2%
Mechanical
A - Min. elongation at fracture (%) (GM) or (GZ) or (GC)
12
A - Min. elongation at fracture (%) (GS)
15
Elastic (Young's, Tensile) Modulus
100 GPa
Elongation at Break
14 %
Poisson's Ratio
0.34
R p0.2 0.2% proof strength (MPa) (GS) or (GM)
120
R p0.2 0.2% proof strength (MPa) (GZ) or (GC)
120
Rm - Tensile strength (MPa) (GS) or (GM)
230
Rm - Tensile strength (MPa) (GZ) or (GC)
260
Shear Modulus
39 GPa
Tensile Strength: Ultimate (UTS)
270 MPa
Tensile Strength: Yield (Proof)
140 MPa
Hardness
Brinell Hardness
74
Brinell hardness (HBW): (GS) or (GM)
60
Brinell hardness (HBW): (GZ) or (GC)
70
Physical
Density
8.9 g/cm 3
Thermal
Latent Heat of Fusion
180 J/g
Maximum Temperature: Mechanical
160 °C
Melting Completion (Liquidus)
960 °C
Melting Onset (Solidus)
880 °C
Specific Heat Capacity
360 J/kg-K
Thermal Conductivity
61 W/m-K
Thermal Diffusivity
19 mm 2 /s
Thermal Expansion
19 µm/m-K
Thermal Shock Resistance
10 points
Electrical
Electrical Conductivity: Equal Volume
12 % IACS
Electrical Conductivity: Equal Weight (Specific)
12 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
33 MJ/m 3
Resilience: Unit (Modulus of Resilience)
89 kJ/m 3
Stiffness to Weight: Axial
6.5 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
8.6 points
Strength to Weight: Bending
11 points
Environmental
Base Metal Price
32 % relative
Embodied Carbon
3.3 kg CO 2 /kg material
Embodied Energy
53 MJ/kg
Embodied Energy
53 MJ/kg 23 x 10 3 BTU/lb
Embodied Water
370 L/kg
Embodied Water
370 L/kg 44 gal/lb
Registered Designations & Aliases
CC493KCuSn7Zn4Pb7-CCuSn7Zn4Pb7-CEN CC493K (CuSn7Zn4Pb7-C) Bearing 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