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UNS C46200 Naval Brass

C46200 brass is a brass formulated for primary forming into wrought products. It has a moderately low melting temperature among the wrought brasses in the database.

The properties of C46200 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 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

17 to 34 %

Poisson's Ratio

0.31

Shear Modulus

40 GPa 5.8 x 106 psi

Shear Strength

240 to 290 MPa 34 to 43 x 103 psi

Tensile Strength: Ultimate (UTS)

370 to 480 MPa 54 to 69 x 103 psi

Tensile Strength: Yield (Proof)

120 to 290 MPa 18 to 42 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)

69 to 100 MJ/m3

Resilience: Unit (Modulus of Resilience)

72 to 400 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

13 to 16 points

Strength to Weight: Bending

14 to 17 points

Thermal Diffusivity

35 mm2/s

Thermal Shock Resistance

12 to 16 points

Alloy Composition

Among wrought copper alloys, the composition of C46200 brass is notable for including tin (Sn). Tin is used to improve strength, bearing properties, and corrosion resistance against certain types of media.

Copper (Cu) 62 to 65
Zinc (Zn) 33.3 to 37.5
Tin (Sn) 0.5 to 1.0
Lead (Pb) 0 to 0.2
Iron (Fe) 0 to 0.1
Residuals 0 to 0.4

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

Followup Questions

Similar Alloys

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