# 3/4-Hard (H03) C41500 Brass

H03 C41500 brass is C41500 brass in the H03 (3/4 hard) temper. The graph bars on the material properties cards below compare H03 C41500 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

110 *GPa* 16 *x 10 ^{6} psi*

Elongation at Break

8.2 *%*

Poisson's Ratio

0.33

Rockwell B Hardness

78

Rockwell Superficial 30T Hardness

68

Shear Modulus

42 *GPa* 6.1 *x 10 ^{6} psi*

Shear Strength

260 *MPa* 37 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

430 *MPa* 63 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

420 *MPa* 61 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

200 *J/g*

Maximum Temperature: Mechanical

180 *°C* 360 *°F*

Melting Completion (Liquidus)

1030 *°C* 1890 *°F*

Melting Onset (Solidus)

1010 *°C* 1850 *°F*

Specific Heat Capacity

380 *J/kg-K* 0.091 *BTU/lb-°F*

Thermal Conductivity

120 *W/m-K* 71 *BTU/h-ft-°F*

Thermal Expansion

18 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

28 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

29 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

30 *% relative*

Density

8.7 *g/cm ^{3}* 550

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

45 *MJ/kg* 19 *x 10 ^{3} BTU/lb*

Embodied Water

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

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

35 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

790 *kJ/m ^{3}*

Stiffness to Weight: Axial

7.1 *points*

Stiffness to Weight: Bending

18 *points*

Strength to Weight: Axial

14 *points*

Strength to Weight: Bending

15 *points*

Thermal Diffusivity

37 *mm ^{2}/s*

Thermal Shock Resistance

15 *points*

## Alloy Composition

Cu | 89 to 93 | |

Zn | 4.2 to 9.5 | |

Sn | 1.5 to 2.2 | |

Pb | 0 to 0.1 | |

Fe | 0 to 0.050 | |

res. | 0 to 0.5 |

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

## Followup Questions

## Further Reading

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993