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Full-Hard (H04) C19700 Copper

H04 C19700 copper is C19700 copper in the H04 (full hard) temper. It has the second lowest strength and second highest ductility compared to the other variants of C19700 copper. The graph bars on the material properties cards below compare H04 C19700 copper to: wrought coppers (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

Elongation at Break

9.2 %

Poisson's Ratio

0.34

Rockwell B Hardness

70

Rockwell Superficial 30T Hardness

68

Shear Modulus

43 GPa 6.3 x 106 psi

Shear Strength

270 MPa 39 x 103 psi

Tensile Strength: Ultimate (UTS)

450 MPa 65 x 103 psi

Tensile Strength: Yield (Proof)

410 MPa 59 x 103 psi

Thermal Properties

Latent Heat of Fusion

210 J/g

Maximum Temperature: Mechanical

200 °C 390 °F

Melting Completion (Liquidus)

1090 °C 2000 °F

Melting Onset (Solidus)

1040 °C 1900 °F

Specific Heat Capacity

390 J/kg-K 0.093 BTU/lb-°F

Thermal Conductivity

250 W/m-K 140 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

86 % IACS

Electrical Conductivity: Equal Weight (Specific)

87 % IACS

Otherwise Unclassified Properties

Base Metal Price

30 % relative

Density

8.9 g/cm3 560 lb/ft3

Embodied Carbon

2.6 kg CO2/kg material

Embodied Energy

41 MJ/kg 18 x 103 BTU/lb

Embodied Water

310 L/kg 37 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

40 MJ/m3

Resilience: Unit (Modulus of Resilience)

710 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

14 points

Strength to Weight: Bending

15 points

Thermal Diffusivity

73 mm2/s

Thermal Shock Resistance

16 points

Alloy Composition

Copper (Cu)Cu 97.4 to 99.59
Iron (Fe)Fe 0.3 to 1.2
Phosphorus (P)P 0.1 to 0.4
Magnesium (Mg)Mg 0.010 to 0.2
Tin (Sn)Sn 0 to 0.2
Zinc (Zn)Zn 0 to 0.2
Manganese (Mn)Mn 0 to 0.050
Nickel (Ni)Ni 0 to 0.050
Cobalt (Co)Co 0 to 0.050
Lead (Pb)Pb 0 to 0.050
Residualsres. 0 to 0.2

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

Followup Questions

Further Reading

ASTM B465: Standard Specification for Copper-Iron Alloy Plate, Sheet, Strip, and Rolled Bar

Copper Alloys: Preparation, Properties and Applications, Michael Naboka and Jennifer Giordano (editors), 2013