UNS C47940 Naval Brass
Brass
O50 (light annealed)
Property Overview
Density8.2g/cm³
Elastic Modulus100GPa
Tensile Strength430MPa
Yield Strength220MPa
Brinell HardnessUnknown
Maximum Service Temperature130°C
Chemical Composition
NI
0.1 to 0.5%
CU
63 to 66%
PB
1.0 to 2.0%
RES.
Residuals res. | | 0 to 0.4%
RESIDUALS RES.
0 to 0.4%
SN
1.2 to 2.0%
ZN
28.1 to 34.6%
FE
0.1 to 1.0%
Mechanical
Elastic (Young's, Tensile) Modulus
100 GPa
Elongation at Break
24 %
Poisson's Ratio
0.31
Shear Modulus
40 GPa
Shear Strength
270 MPa
Tensile Strength: Ultimate (UTS)
430 MPa
Tensile Strength: Yield (Proof)
220 MPa
Physical
Density
8.2 g/cm 3
Thermal
Latent Heat of Fusion
170 J/g
Maximum Temperature: Mechanical
130 °C
Melting Completion (Liquidus)
850 °C
Melting Onset (Solidus)
800 °C
Specific Heat Capacity
380 J/kg-K
Thermal Conductivity
110 W/m-K
Thermal Diffusivity
36 mm 2 /s
Thermal Expansion
20 µm/m-K
Thermal Shock Resistance
14 points
Calculated
Resilience: Ultimate (Unit Rupture Work)
86 MJ/m 3
Resilience: Unit (Modulus of Resilience)
230 kJ/m 3
Stiffness to Weight: Axial
7.1 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
14 points
Strength to Weight: Bending
15 points
Environmental
Base Metal Price
25 % relative
Embodied Carbon
2.8 kg CO 2 /kg material
Embodied Energy
47 MJ/kg
Embodied Energy
47 MJ/kg 20 x 10 3 BTU/lb
Embodied Water
330 L/kg
Embodied Water
330 L/kg 40 gal/lb
Registered Designations & Aliases
C47940UNS C47940 Naval Brass
Standards
ASTM B21 ASTM B21: Standard Specification for Naval Brass Rod, Bar, and Shapes