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SAE-AISI H42 Steel vs. C72900 Copper-nickel

SAE-AISI H42 steel belongs to the iron alloys classification, while C72900 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 H42 steel and the bottom bar is C72900 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 77
45
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
870 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Melting Completion (Liquidus), °C 1620
1120
Melting Onset (Solidus), °C 1570
950
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 24
29
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
39
Density, g/cm3 8.4
8.8
Embodied Carbon, kg CO2/kg material 8.8
4.6
Embodied Energy, MJ/kg 130
72
Embodied Water, L/kg 98
360

Common Calculations

Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 23 to 65
27 to 34
Strength to Weight: Bending, points 21 to 42
23 to 27
Thermal Diffusivity, mm2/s 6.5
8.6
Thermal Shock Resistance, points 20 to 57
31 to 38

Alloy Composition

Carbon (C), % 0.55 to 0.7
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
74.1 to 78
Iron (Fe), % 79.3 to 83.8
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0.15 to 0.4
0 to 0.3
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
14.5 to 15.5
Niobium (Nb), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.030
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
7.5 to 8.5
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.3