Light Annealed (O50) C46200 Brass
O50 C46200 brass is C46200 brass in the O50 (light annealed) temper. The graph bars on the material properties cards below compare O50 C46200 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
30 %
Poisson's Ratio
0.31
Shear Modulus
40 GPa 5.8 x 106 psi
Shear Strength
270 MPa 39 x 103 psi
Tensile Strength: Ultimate (UTS)
420 MPa 60 x 103 psi
Tensile Strength: Yield (Proof)
190 MPa 28 x 103 psi
Thermal Properties
Latent Heat of Fusion
170 J/g
Maximum Temperature: Mechanical
120 °C 260 °F
Melting Completion (Liquidus)
840 °C 1550 °F
Melting Onset (Solidus)
800 °C 1470 °F
Specific Heat Capacity
380 J/kg-K 0.092 BTU/lb-°F
Thermal Conductivity
110 W/m-K 62 BTU/h-ft-°F
Thermal Expansion
20 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
24 % relative
Density
8.1 g/cm3 500 lb/ft3
Embodied Carbon
2.7 kg CO2/kg material
Embodied Energy
46 MJ/kg 20 x 103 BTU/lb
Embodied Water
330 L/kg 39 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
100 MJ/m3
Resilience: Unit (Modulus of Resilience)
170 kJ/m3
Stiffness to Weight: Axial
7.2 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
14 points
Strength to Weight: Bending
15 points
Thermal Diffusivity
35 mm2/s
Thermal Shock Resistance
14 points
Alloy Composition
| Cu | 62 to 65 | |
| Zn | 33.3 to 37.5 | |
| Sn | 0.5 to 1.0 | |
| Pb | 0 to 0.2 | |
| Fe | 0 to 0.1 | |
| res. | 0 to 0.4 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B21: Standard Specification for Naval Brass Rod, Bar, and Shapes
ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001