UNS C94400 Leaded Tin Bronze
Bronze
Property Overview
Density9.1g/cm³
Elastic Modulus100GPa
Tensile Strength220MPa
Yield Strength110MPa
Brinell Hardness55HB
Maximum Service Temperature150°C
Chemical Composition
NI
0 to 1.0%
SI
0 to 0.0050%
P
0 to 0.050%
S
0 to 0.080%
CU
76.1 to 84%
AL
0 to 0.0050%
PB
9.0 to 12%
SB
0 to 0.8%
SN
7.0 to 9.0%
ZN
0 to 0.8%
FE
0 to 0.15%
Mechanical
Elastic (Young's, Tensile) Modulus
100 GPa
Elongation at Break
18 %
Poisson's Ratio
0.35
Shear Modulus
37 GPa
Tensile Strength: Ultimate (UTS)
220 MPa
Tensile Strength: Yield (Proof)
110 MPa
Hardness
Brinell Hardness
55
Physical
Density
9.1 g/cm 3
Thermal
Latent Heat of Fusion
180 J/g
Maximum Temperature: Mechanical
150 °C
Melting Completion (Liquidus)
940 °C
Melting Onset (Solidus)
790 °C
Specific Heat Capacity
350 J/kg-K
Thermal Conductivity
52 W/m-K
Thermal Diffusivity
17 mm 2 /s
Thermal Expansion
19 µm/m-K
Thermal Shock Resistance
8.3 points
Electrical
Electrical Conductivity: Equal Volume
10 % IACS
Electrical Conductivity: Equal Weight (Specific)
9.9 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
33 MJ/m 3
Resilience: Unit (Modulus of Resilience)
60 kJ/m 3
Stiffness to Weight: Axial
6.1 points
Stiffness to Weight: Bending
17 points
Strength to Weight: Axial
6.8 points
Strength to Weight: Bending
9.0 points
Environmental
Base Metal Price
32 % relative
Embodied Carbon
3.4 kg CO 2 /kg material
Embodied Energy
54 MJ/kg
Embodied Energy
54 MJ/kg 23 x 10 3 BTU/lb
Embodied Water
390 L/kg
Embodied Water
390 L/kg 46 gal/lb
Registered Designations & Aliases
C94400UNS C94400 Leaded Tin Bronze
Standards
ASTM B66 ASTM B66: Standard Specification for Bronze Castings for Steam Locomotive Wearing Parts