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SAE-AISI S7 Steel vs. EN 2.4668 Nickel

SAE-AISI S7 steel belongs to the iron alloys classification, while EN 2.4668 nickel belongs to the nickel alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 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 S7 steel and the bottom bar is EN 2.4668 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
75
Tensile Strength: Ultimate (UTS), MPa 670 to 2030
1390

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 40
13
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
75
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 2.3
13
Embodied Energy, MJ/kg 31
190
Embodied Water, L/kg 65
250

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24 to 72
46
Strength to Weight: Bending, points 22 to 46
33
Thermal Diffusivity, mm2/s 11
3.5
Thermal Shock Resistance, points 22 to 66
40

Alloy Composition

Aluminum (Al), % 0
0.3 to 0.7
Boron (B), % 0
0.0020 to 0.0060
Carbon (C), % 0.45 to 0.55
0.020 to 0.080
Chromium (Cr), % 3.0 to 3.5
17 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 91.6 to 94.9
11.2 to 24.6
Manganese (Mn), % 0.2 to 0.9
0 to 0.35
Molybdenum (Mo), % 1.3 to 1.8
2.8 to 3.3
Nickel (Ni), % 0
50 to 55
Niobium (Nb), % 0
4.7 to 5.5
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.2 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.6 to 1.2
Vanadium (V), % 0 to 0.3
0