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Heat Treated (HT) C99400 Brass

HT C99400 brass is C99400 brass in the heat treated (HT) condition. The graph bars on the material properties cards below compare HT C99400 brass to: cast 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

120 GPa 17 x 106 psi

Poisson's Ratio

0.34

Shear Modulus

44 GPa 6.4 x 106 psi

Tensile Strength: Ultimate (UTS)

550 MPa 79 x 103 psi

Tensile Strength: Yield (Proof)

370 MPa 54 x 103 psi

Thermal Properties

Latent Heat of Fusion

230 J/g

Maximum Temperature: Mechanical

200 °C 400 °F

Melting Completion (Liquidus)

1070 °C 1960 °F

Melting Onset (Solidus)

1020 °C 1860 °F

Specific Heat Capacity

400 J/kg-K 0.1 BTU/lb-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

17 % IACS

Electrical Conductivity: Equal Weight (Specific)

17 % IACS

Otherwise Unclassified Properties

Base Metal Price

30 % relative

Density

8.7 g/cm3 540 lb/ft3

Embodied Carbon

2.8 kg CO2/kg material

Embodied Energy

45 MJ/kg 19 x 103 BTU/lb

Embodied Water

310 L/kg 37 gal/lb

Common Calculations

Resilience: Unit (Modulus of Resilience)

590 kJ/m3

Stiffness to Weight: Axial

7.5 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

17 points

Strength to Weight: Bending

17 points

Thermal Shock Resistance

19 points

Alloy Composition

Copper (Cu)Cu 83.5 to 96.5
Zinc (Zn)Zn 0.5 to 5.0
Nickel (Ni)Ni 1.0 to 3.5
Iron (Fe)Fe 1.0 to 3.0
Silicon (Si)Si 0.5 to 2.0
Aluminum (Al)Al 0.5 to 2.0
Manganese (Mn)Mn 0 to 0.5
Lead (Pb)Pb 0 to 0.25
Residualsres. 0 to 0.3

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