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Full-Hard (H04) C53400 Bronze

H04 C53400 bronze is C53400 bronze in the H04 (full hard) temper. The graph bars on the material properties cards below compare H04 C53400 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

13 %

Poisson's Ratio

0.34

Rockwell B Hardness

85

Rockwell Superficial 30T Hardness

73

Shear Modulus

42 GPa 6.0 x 106 psi

Shear Strength

280 MPa 40 x 103 psi

Tensile Strength: Ultimate (UTS)

460 MPa 66 x 103 psi

Tensile Strength: Yield (Proof)

440 MPa 63 x 103 psi

Thermal Properties

Latent Heat of Fusion

200 J/g

Maximum Temperature: Mechanical

180 °C 360 °F

Melting Completion (Liquidus)

1050 °C 1920 °F

Melting Onset (Solidus)

950 °C 1750 °F

Specific Heat Capacity

380 J/kg-K 0.090 BTU/lb-°F

Thermal Conductivity

69 W/m-K 40 BTU/h-ft-°F

Thermal Expansion

18 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

15 % IACS

Electrical Conductivity: Equal Weight (Specific)

15 % IACS

Otherwise Unclassified Properties

Base Metal Price

32 % relative

Density

8.9 g/cm3 550 lb/ft3

Embodied Carbon

3.0 kg CO2/kg material

Embodied Energy

49 MJ/kg 21 x 103 BTU/lb

Embodied Water

350 L/kg 41 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

59 MJ/m3

Resilience: Unit (Modulus of Resilience)

850 kJ/m3

Stiffness to Weight: Axial

7.0 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

14 points

Strength to Weight: Bending

15 points

Thermal Diffusivity

21 mm2/s

Thermal Shock Resistance

17 points

Alloy Composition

Copper (Cu)Cu 91.8 to 95.7
Tin (Sn)Sn 3.5 to 5.8
Lead (Pb)Pb 0.8 to 1.2
Phosphorus (P)P 0.030 to 0.35
Zinc (Zn)Zn 0 to 0.3
Iron (Fe)Fe 0 to 0.1
Residualsres. 0 to 0.5

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

Followup Questions

Further Reading

ASTM B139: Standard Specification for Phosphor Bronze Rod, Bar, and Shapes

ASTM B103: Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar

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