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C72700 Copper-nickel vs. ASTM A266 Carbon Steel

C72700 copper-nickel belongs to the copper alloys classification, while ASTM A266 carbon steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C72700 copper-nickel and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 4.0 to 36
21 to 26
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
73
Shear Strength, MPa 310 to 620
320 to 380
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
500 to 600
Tensile Strength: Yield (Proof), MPa 580 to 1060
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
400
Melting Completion (Liquidus), °C 1100
1460
Melting Onset (Solidus), °C 930
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 54
51 to 52
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 36
1.8
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 4.0
1.4
Embodied Energy, MJ/kg 62
18 to 19
Embodied Water, L/kg 350
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
140 to 230
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 14 to 34
18 to 21
Strength to Weight: Bending, points 15 to 26
18 to 20
Thermal Diffusivity, mm2/s 16
14
Thermal Shock Resistance, points 16 to 38
16 to 19