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SAE-AISI M4 Steel vs. CC381H Copper-nickel

SAE-AISI M4 steel belongs to the iron alloys classification, while CC381H copper-nickel belongs to the copper alloys. There are 21 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 M4 steel and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 76
52
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
380

Thermal Properties

Latent Heat of Fusion, J/g 260
240
Melting Completion (Liquidus), °C 1610
1180
Melting Onset (Solidus), °C 1560
1120
Specific Heat Capacity, J/kg-K 440
410
Thermal Conductivity, W/m-K 25
30
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
40
Density, g/cm3 8.3
8.9
Embodied Carbon, kg CO2/kg material 14
5.0
Embodied Energy, MJ/kg 210
73
Embodied Water, L/kg 110
280

Common Calculations

Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 26 to 72
12
Strength to Weight: Bending, points 23 to 45
13
Thermal Diffusivity, mm2/s 6.9
8.4
Thermal Shock Resistance, points 24 to 68
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 1.3 to 1.4
0 to 0.030
Chromium (Cr), % 3.8 to 4.8
0
Copper (Cu), % 0 to 0.25
64.5 to 69.9
Iron (Fe), % 75.9 to 81.4
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0.15 to 0.4
0.6 to 1.2
Molybdenum (Mo), % 4.3 to 5.5
0
Nickel (Ni), % 0 to 0.3
29 to 31
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0.2 to 0.45
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0
Zinc (Zn), % 0
0 to 0.5