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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.

Copper (Cu) 59 to 62
Zinc (Zn) 36.2 to 40.5
Tin (Sn) 0.5 to 1.0
Lead (Pb) 0 to 0.2
Iron (Fe) 0 to 0.1
Arsenic (As) 0.020 to 0.060
Residuals 0 to 0.4

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

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