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ACI-ASTM CG8M Steel vs. C71500 Copper-nickel

ACI-ASTM CG8M steel belongs to the iron alloys classification, while C71500 copper-nickel belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG8M steel and the bottom bar is C71500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
52
Tensile Strength: Ultimate (UTS), MPa 550
380 to 620

Thermal Properties

Latent Heat of Fusion, J/g 300
230
Maximum Temperature: Mechanical, °C 1020
260
Melting Completion (Liquidus), °C 1450
1240
Melting Onset (Solidus), °C 1400
1170
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 16
28
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
4.7

Otherwise Unclassified Properties

Base Metal Price, % relative 20
41
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 4.1
5.1
Embodied Energy, MJ/kg 56
74
Embodied Water, L/kg 160
280

Common Calculations

Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 19
12 to 19
Strength to Weight: Bending, points 19
13 to 18
Thermal Diffusivity, mm2/s 4.3
7.7
Thermal Shock Resistance, points 12
12 to 20

Alloy Composition

Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
63.5 to 70.6
Iron (Fe), % 58.8 to 70
0.4 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 9.0 to 13
29 to 33
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5