UNS C53400 (CW458K) Leaded Phosphor Bronze
Copper Alloys
O60 (soft annealed)
Property Overview
Density8.9g/cm³
Elastic Modulus110GPa
Tensile Strength330MPa
Yield StrengthUnknown
Brinell HardnessUnknown
Maximum Service Temperature180°C
Chemical Composition
P
0.030 to 0.35%
CU
91.8 to 95.7%
PB
0.8 to 1.2%
RES.
Residuals res. | | 0 to 0.5%
RESIDUALS RES.
0 to 0.5%
SN
3.5 to 5.8%
ZN
0 to 0.3%
FE
0 to 0.1%
Mechanical
Elastic (Young's, Tensile) Modulus
110 GPa
Poisson's Ratio
0.34
Shear Modulus
42 GPa
Tensile Strength: Ultimate (UTS)
330 MPa
Hardness
Rockwell Superficial 30T Hardness
33
Physical
Density
8.9 g/cm 3
Thermal
Latent Heat of Fusion
200 J/g
Maximum Temperature: Mechanical
180 °C
Melting Completion (Liquidus)
1050 °C
Melting Onset (Solidus)
950 °C
Specific Heat Capacity
380 J/kg-K
Thermal Conductivity
69 W/m-K
Thermal Diffusivity
21 mm 2 /s
Thermal Expansion
18 µm/m-K
Thermal Shock Resistance
12 points
Electrical
Electrical Conductivity: Equal Volume
15 % IACS
Electrical Conductivity: Equal Weight (Specific)
15 % IACS
Calculated
Stiffness to Weight: Axial
7.0 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
10 points
Strength to Weight: Bending
12 points
Environmental
Base Metal Price
32 % relative
Embodied Carbon
3.0 kg CO 2 /kg material
Embodied Energy
49 MJ/kg
Embodied Energy
49 MJ/kg 21 x 10 3 BTU/lb
Embodied Water
350 L/kg
Embodied Water
350 L/kg 41 gal/lb
Registered Designations & Aliases
C53400CW458KCW458KCuSn5Pb1UNS C53400 (CW458K) Leaded Phosphor Bronze
Standards
ASTM B103 ASTM B103: Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar
ASTM B139 ASTM B139: Standard Specification for Phosphor Bronze Rod, Bar, and Shapes
ASTM B139 ASTM B139: Standard Specification for Phosphor Bronze Rod, Bar, and Shapes ASTM B103: Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar
EN 12164 EN 12164: 1998 Copper and copper alloys. Rod for free machining purposes