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ASTM A204 Steel vs. C72900 Copper-nickel

ASTM A204 steel belongs to the iron alloys classification, while C72900 copper-nickel belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A204 steel and the bottom bar is C72900 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 18 to 22
6.0 to 20
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
45
Shear Strength, MPa 330 to 360
540 to 630
Tensile Strength: Ultimate (UTS), MPa 520 to 590
870 to 1080
Tensile Strength: Yield (Proof), MPa 290 to 330
700 to 920

Thermal Properties

Latent Heat of Fusion, J/g 250
210
Maximum Temperature: Mechanical, °C 410
210
Melting Completion (Liquidus), °C 1470
1120
Melting Onset (Solidus), °C 1420 to 1430
950
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 52
29
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
39
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 1.5
4.6
Embodied Energy, MJ/kg 20
72
Embodied Water, L/kg 47
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 95
49 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 290
2030 to 3490
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 18 to 21
27 to 34
Strength to Weight: Bending, points 18 to 20
23 to 27
Thermal Diffusivity, mm2/s 14
8.6
Thermal Shock Resistance, points 15 to 17
31 to 38