Extra-Hard (H10) C22600 Bronze
H10 C22600 bronze is C22600 bronze in the H10 (extra spring) temper. It has the highest strength and lowest ductility compared to the other variants of C22600 bronze. The graph bars on the material properties cards below compare H10 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
2.5 %
Poisson's Ratio
0.33
Rockwell B Hardness
85
Rockwell Superficial 30T Hardness
77
Shear Modulus
42 GPa 6.1 x 106 psi
Shear Strength
320 MPa 47 x 103 psi
Tensile Strength: Ultimate (UTS)
570 MPa 82 x 103 psi
Tensile Strength: Yield (Proof)
490 MPa 71 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)
14 MJ/m3
Resilience: Unit (Modulus of Resilience)
1070 kJ/m3
Stiffness to Weight: Axial
7.2 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
18 points
Thermal Diffusivity
52 mm2/s
Thermal Shock Resistance
19 points
Alloy Composition
| Cu | 86 to 89 | |
| Zn | 10.7 to 14 | |
| Fe | 0 to 0.050 | |
| Pb | 0 to 0.050 | |
| res. | 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