# As Forged and Quenched (M11) C48500 Brass

M11 C48500 brass is C48500 brass in the M11 (as forged and quenched) condition. The graph bars on the material properties cards below compare M11 C48500 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 10 ^{6} psi*

Elongation at Break

40 *%*

Poisson's Ratio

0.31

Rockwell B Hardness

55

Shear Modulus

39 *GPa* 5.7 *x 10 ^{6} psi*

Shear Strength

290 *MPa* 42 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

430 *MPa* 62 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

170 *MPa* 24 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

170 *J/g*

Maximum Temperature: Mechanical

120 *°C* 240 *°F*

Melting Completion (Liquidus)

900 *°C* 1650 *°F*

Melting Onset (Solidus)

890 *°C* 1630 *°F*

Specific Heat Capacity

380 *J/kg-K* 0.091 *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

8.1 *g/cm ^{3}* 500

*lb/ft*

^{3}Embodied Carbon

2.7 *kg CO _{2}/kg material*

Embodied Energy

46 *MJ/kg* 20 *x 10 ^{3} BTU/lb*

Embodied Water

330 *L/kg* 39 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

140 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

130 *kJ/m ^{3}*

Stiffness to Weight: Axial

7.1 *points*

Stiffness to Weight: Bending

19 *points*

Strength to Weight: Axial

15 *points*

Strength to Weight: Bending

16 *points*

Thermal Diffusivity

38 *mm ^{2}/s*

Thermal Shock Resistance

14 *points*

## Alloy Composition

Cu | 59 to 62 | |

Zn | 34.3 to 39.2 | |

Pb | 1.3 to 2.2 | |

Sn | 0.5 to 1.0 | |

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 B283: Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)

ASTM B124: Standard Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes

ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015