UNS C42500 (CW454K) Tin Brass
Other
OS015 (annealed to 0.015mm grain size)
Property Overview
Density8.7g/cm³
Elastic Modulus110GPa
Tensile Strength320MPa
Yield Strength140MPa
Brinell HardnessUnknown
Maximum Service Temperature180°C
Chemical Composition
P
0 to 0.35%
CU
87 to 90%
PB
0 to 0.050%
RES.
Residuals res. | | 0 to 0.5%
RESIDUALS RES.
0 to 0.5%
SN
1.5 to 3.0%
ZN
6.1 to 11.5%
FE
0 to 0.050%
Mechanical
Elastic (Young's, Tensile) Modulus
110 GPa
Elongation at Break
47 %
Poisson's Ratio
0.33
Shear Modulus
42 GPa
Shear Strength
230 MPa
Tensile Strength: Ultimate (UTS)
320 MPa
Tensile Strength: Yield (Proof)
140 MPa
Hardness
Rockwell F Hardness
79
Rockwell Superficial 30T Hardness
45
Physical
Density
8.7 g/cm 3
Thermal
Latent Heat of Fusion
200 J/g
Maximum Temperature: Mechanical
180 °C
Melting Completion (Liquidus)
1030 °C
Melting Onset (Solidus)
1010 °C
Specific Heat Capacity
380 J/kg-K
Thermal Conductivity
120 W/m-K
Thermal Diffusivity
36 mm 2 /s
Thermal Expansion
18 µm/m-K
Thermal Shock Resistance
11 points
Electrical
Electrical Conductivity: Equal Volume
28 % IACS
Electrical Conductivity: Equal Weight (Specific)
29 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
120 MJ/m 3
Resilience: Unit (Modulus of Resilience)
88 kJ/m 3
Stiffness to Weight: Axial
7.1 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
10 points
Strength to Weight: Bending
12 points
Environmental
Base Metal Price
30 % relative
Embodied Carbon
2.8 kg CO 2 /kg material
Embodied Energy
46 MJ/kg
Embodied Energy
46 MJ/kg 20 x 10 3 BTU/lb
Embodied Water
330 L/kg
Embodied Water
330 L/kg 39 gal/lb
Registered Designations & Aliases
C42500CW454KCW454KCuSn3Zn9UNS C42500 (CW454K) Tin Brass
Standards
EN 13148 EN 13148: 2001 Copper and copper alloys. Hot-dip tinned strip
EN 1652 EN 1652: 1998 Copper and copper alloys. Plate, sheet, strip and circles for general purposes
EN 1654 EN 1654: 1998 Copper and copper alloys. Strip for springs and connectors