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EN 1.4869 Casting Alloy vs. SAE-AISI S7 Steel

EN 1.4869 casting alloy belongs to the nickel alloys classification, while SAE-AISI S7 steel belongs to the iron alloys. They have a modest 22% of their average alloy composition in common, which, by itself, doesn't mean much. 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 EN 1.4869 casting alloy and the bottom bar is SAE-AISI S7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
74
Tensile Strength: Ultimate (UTS), MPa 540
670 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 10
40
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
5.0
Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 7.7
2.3
Embodied Energy, MJ/kg 110
31
Embodied Water, L/kg 300
65

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
24 to 72
Strength to Weight: Bending, points 17
22 to 46
Thermal Diffusivity, mm2/s 2.6
11
Thermal Shock Resistance, points 14
22 to 66

Alloy Composition

Carbon (C), % 0.45 to 0.55
0.45 to 0.55
Chromium (Cr), % 24 to 26
3.0 to 3.5
Cobalt (Co), % 14 to 16
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 11.4 to 23.6
91.6 to 94.9
Manganese (Mn), % 0 to 1.0
0.2 to 0.9
Molybdenum (Mo), % 0
1.3 to 1.8
Nickel (Ni), % 33 to 37
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 1.0 to 2.0
0.2 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 4.0 to 6.0
0
Vanadium (V), % 0
0 to 0.3