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SAE-AISI 4161 Steel vs. C71000 Copper-nickel

SAE-AISI 4161 steel belongs to the iron alloys classification, while C71000 copper-nickel belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4161 steel and the bottom bar is C71000 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
49
Tensile Strength: Ultimate (UTS), MPa 680
320 to 560

Thermal Properties

Latent Heat of Fusion, J/g 250
230
Maximum Temperature: Mechanical, °C 420
240
Melting Completion (Liquidus), °C 1460
1200
Melting Onset (Solidus), °C 1410
1150
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 43
43
Thermal Expansion, µm/m-K 12
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
37
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 1.5
4.3
Embodied Energy, MJ/kg 20
63
Embodied Water, L/kg 50
290

Common Calculations

Stiffness to Weight: Axial, points 13
8.2
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 24
10 to 18
Strength to Weight: Bending, points 22
12 to 17
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 22
12 to 20

Alloy Composition

Carbon (C), % 0.56 to 0.64
0
Chromium (Cr), % 0.7 to 0.9
0
Copper (Cu), % 0
73.5 to 80.5
Iron (Fe), % 96.7 to 97.6
0.5 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.75 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.25 to 0.35
0
Nickel (Ni), % 0
19 to 23
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5