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Spring-Tempered (H08) C22600 Bronze

H08 C22600 bronze is C22600 bronze in the H08 (spring) temper. It has the second highest strength and second lowest ductility compared to the other variants of C22600 bronze. The graph bars on the material properties cards below compare H08 C22600 bronze to: wrought bronzes (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 106 psi

Elongation at Break

3.1 %

Poisson's Ratio

0.33

Rockwell B Hardness

83

Rockwell Superficial 30T Hardness

76

Shear Modulus

42 GPa 6.1 x 106 psi

Shear Strength

310 MPa 45 x 103 psi

Tensile Strength: Ultimate (UTS)

540 MPa 78 x 103 psi

Tensile Strength: Yield (Proof)

470 MPa 68 x 103 psi

Thermal Properties

Latent Heat of Fusion

200 J/g

Maximum Temperature: Mechanical

170 °C 350 °F

Melting Completion (Liquidus)

1040 °C 1900 °F

Melting Onset (Solidus)

1000 °C 1840 °F

Specific Heat Capacity

390 J/kg-K 0.092 BTU/lb-°F

Thermal Conductivity

170 W/m-K 100 BTU/h-ft-°F

Thermal Expansion

18 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

40 % IACS

Electrical Conductivity: Equal Weight (Specific)

42 % IACS

Otherwise Unclassified Properties

Base Metal Price

28 % relative

Density

8.7 g/cm3 540 lb/ft3

Embodied Carbon

2.6 kg CO2/kg material

Embodied Energy

42 MJ/kg 18 x 103 BTU/lb

Embodied Water

310 L/kg 37 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

16 MJ/m3

Resilience: Unit (Modulus of Resilience)

970 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

17 points

Strength to Weight: Bending

17 points

Thermal Diffusivity

52 mm2/s

Thermal Shock Resistance

19 points

Alloy Composition

Copper (Cu) 86 to 89
Zinc (Zn) 10.7 to 14
Iron (Fe) 0 to 0.050
Lead (Pb) 0 to 0.050
Residuals 0 to 0.2

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

Followup Questions

Further Reading

ASTM B134: Standard Specification for Brass Wire

ASTM B36: Standard Specification for Brass Plate, Sheet, Strip, And Rolled Bar

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