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ASTM A27 Cast Steel vs. C71580 Copper-nickel

ASTM A27 cast steel belongs to the iron alloys classification, while C71580 copper-nickel belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A27 cast steel and the bottom bar is C71580 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Elongation at Break, % 25 to 27
40
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
51
Tensile Strength: Ultimate (UTS), MPa 460 to 550
330
Tensile Strength: Yield (Proof), MPa 230 to 310
110

Thermal Properties

Latent Heat of Fusion, J/g 250
230
Maximum Temperature: Mechanical, °C 400
260
Melting Completion (Liquidus), °C 1460
1180
Melting Onset (Solidus), °C 1420
1120
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 52
39
Thermal Expansion, µm/m-K 12
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
4.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
41
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 1.4
5.1
Embodied Energy, MJ/kg 18
74
Embodied Water, L/kg 45 to 46
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
100
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
47
Stiffness to Weight: Axial, points 13
8.5
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 16 to 20
10
Strength to Weight: Bending, points 17 to 19
12
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 15 to 18
11