UNS C71520 (ERCuNi) Copper-Nickel

Nickel Alloys

Material conditionO60 (soft annealed)

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density8.9g/cm³

Elastic Modulus140GPa

Tensile Strength370MPa

Yield Strength140MPa

Brinell HardnessUnknown

Maximum Service Temperature260°C

Weight Calculator

Chemical Composition

0 to 0.050%

28 to 33%

0 to 1.0%

0 to 0.2%

0 to 0.020%

65 to 71.6%

0 to 0.020%

RES.

Residuals res. | | 0 to 0.5%

RESIDUALS RES.

0 to 0.5%

0.4 to 1.0%

Mechanical

Elastic (Young's, Tensile) Modulus

140 GPa

Elongation at Break

34 %

Poisson's Ratio

0.33

Shear Modulus

51 GPa

Shear Strength

250 MPa

Tensile Strength: Ultimate (UTS)

370 MPa

Tensile Strength: Yield (Proof)

140 MPa

Physical

Density

8.9 g/cm 3

Thermal

Latent Heat of Fusion

230 J/g

Maximum Temperature: Mechanical

260 °C

Melting Completion (Liquidus)

1170 °C

Melting Onset (Solidus)

1120 °C

Specific Heat Capacity

400 J/kg-K

Thermal Conductivity

32 W/m-K

Thermal Diffusivity

8.9 mm 2 /s

Thermal Expansion

15 µm/m-K

Thermal Shock Resistance

12 points

Electrical

Electrical Conductivity: Equal Volume

5.7 % IACS

Electrical Conductivity: Equal Weight (Specific)

5.8 % IACS

Calculated

Resilience: Ultimate (Unit Rupture Work)

99 MJ/m 3

Resilience: Unit (Modulus of Resilience)

67 kJ/m 3

Stiffness to Weight: Axial

8.6 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

12 points

Strength to Weight: Bending

13 points

Environmental

Base Metal Price

40 % relative

Embodied Carbon

5.0 kg CO 2 /kg material

Embodied Energy

73 MJ/kg

Embodied Energy

73 MJ/kg 31 x 10 3 BTU/lb

Embodied Water

280 L/kg

Embodied Water

280 L/kg 34 gal/lb

Registered Designations & Aliases

C71520ERCuNiUNS C71520 (ERCuNi) Copper-Nickel

Standards

ASTM B122 ASTM B122: Standard Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar

ASTM B124 ASTM B124: Standard Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes

ASTM B151 ASTM B151: Standard Specification for Copper-Nickel-Zinc Alloy (Nickel Silver) and Copper-Nickel Rod and Bar

ASTM B151 ASTM B151: Standard Specification for Copper-Nickel-Zinc Alloy (Nickel Silver) and Copper-Nickel Rod and Bar ASTM B122: Standard Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar ASTM B124: Standard Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes ASTM B283: Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)

ASTM B283 ASTM B283: Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)