UNS C46500 Arsenical Naval Brass
C46500 brass is a brass formulated for primary forming into wrought products.
The properties of C46500 brass include six common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare C46500 brass to: wrought brasses (top), all copper alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
100 GPa 15 x 106 psi
Elongation at Break
18 to 50 %
Poisson's Ratio
0.31
Rockwell B Hardness
55 to 95
Rockwell Superficial 30T Hardness
55 to 68
Shear Modulus
40 GPa 5.8 x 106 psi
Shear Strength
280 to 380 MPa 40 to 54 x 103 psi
Tensile Strength: Ultimate (UTS)
380 to 610 MPa 55 to 88 x 103 psi
Tensile Strength: Yield (Proof)
190 to 490 MPa 27 to 72 x 103 psi
Thermal Properties
Latent Heat of Fusion
170 J/g
Maximum Temperature: Mechanical
120 °C 250 °F
Melting Completion (Liquidus)
900 °C 1650 °F
Melting Onset (Solidus)
890 °C 1630 °F
Specific Heat Capacity
380 J/kg-K 0.092 BTU/lb-°F
Thermal Conductivity
120 W/m-K 67 BTU/h-ft-°F
Thermal Expansion
21 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
26 % IACS
Electrical Conductivity: Equal Weight (Specific)
29 % IACS
Otherwise Unclassified Properties
Base Metal Price
23 % relative
Density
8.0 g/cm3 500 lb/ft3
Embodied Carbon
2.7 kg CO2/kg material
Embodied Energy
47 MJ/kg 20 x 103 BTU/lb
Embodied Water
330 L/kg 39 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
99 to 160 MJ/m3
Resilience: Unit (Modulus of Resilience)
170 to 1170 kJ/m3
Stiffness to Weight: Axial
7.2 points
Stiffness to Weight: Bending
20 points
Strength to Weight: Axial
13 to 21 points
Strength to Weight: Bending
15 to 20 points
Thermal Diffusivity
38 mm2/s
Thermal Shock Resistance
13 to 20 points
Alloy Composition
Among wrought copper alloys, the composition of C46500 brass is notable for including arsenic (As). Arsenic is used to protect the alloy against dezincification.
| Cu | 59 to 62 | |
| Zn | 36.2 to 40.5 | |
| Sn | 0.5 to 1.0 | |
| Pb | 0 to 0.2 | |
| Fe | 0 to 0.1 | |
| As | 0.020 to 0.060 | |
| res. | 0 to 0.4 |
All values are % weight. Ranges represent what is permitted under applicable standards.