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As Hot Rolled (M20) C46500 Brass

M20 C46500 brass is C46500 brass in the M20 (as hot rolled) condition. It has the lowest strength and highest ductility compared to the other variants of C46500 brass. The graph bars on the material properties cards below compare M20 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

50 %

Poisson's Ratio

0.31

Rockwell B Hardness

55

Rockwell Superficial 30T Hardness

55

Shear Modulus

40 GPa 5.8 x 106 psi

Shear Strength

280 MPa 40 x 103 psi

Tensile Strength: Ultimate (UTS)

380 MPa 55 x 103 psi

Tensile Strength: Yield (Proof)

190 MPa 27 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)

160 MJ/m3

Resilience: Unit (Modulus of Resilience)

170 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

20 points

Strength to Weight: Axial

13 points

Strength to Weight: Bending

15 points

Thermal Diffusivity

38 mm2/s

Thermal Shock Resistance

13 points

Alloy Composition

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

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

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