UNS C81400 (Alloy 70C) Beryllium Copper

Copper Alloys

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density8.9g/cm³

Elastic Modulus120GPa

Tensile Strength370MPa

Yield Strength250MPa

Brinell HardnessUnknown

Maximum Service Temperature200°C

Weight Calculator

Chemical Composition

0.6 to 1.0%

98.4 to 99.38%

0.020 to 0.1%

RES.

Residuals res. | | 0 to 0.5%

RESIDUALS RES.

0 to 0.5%

Mechanical

Elastic (Young's, Tensile) Modulus

120 GPa

Elongation at Break

11 %

Poisson's Ratio

0.34

Shear Modulus

41 GPa

Tensile Strength: Ultimate (UTS)

370 MPa

Tensile Strength: Yield (Proof)

250 MPa

Hardness

Rockwell B Hardness

Physical

Density

8.9 g/cm 3

Thermal

Latent Heat of Fusion

210 J/g

Maximum Temperature: Mechanical

200 °C

Melting Completion (Liquidus)

1090 °C

Melting Onset (Solidus)

1070 °C

Specific Heat Capacity

390 J/kg-K

Thermal Conductivity

260 W/m-K

Thermal Diffusivity

75 mm 2 /s

Thermal Expansion

17 µm/m-K

Thermal Shock Resistance

13 points

Electrical

Electrical Conductivity: Equal Volume

60 % IACS

Electrical Conductivity: Equal Weight (Specific)

61 % IACS

Calculated

Resilience: Ultimate (Unit Rupture Work)

36 MJ/m 3

Resilience: Unit (Modulus of Resilience)

260 kJ/m 3

Stiffness to Weight: Axial

7.3 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

11 points

Strength to Weight: Bending

13 points

Environmental

Base Metal Price

33 % relative

Embodied Carbon

2.8 kg CO 2 /kg material

Embodied Energy

45 MJ/kg

Embodied Energy

45 MJ/kg 19 x 10 3 BTU/lb

Embodied Water

310 L/kg

Embodied Water

310 L/kg 37 gal/lb

Registered Designations & Aliases

Alloy 70CC81400UNS C81400 (Alloy 70C) Beryllium Copper