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SAE-AISI S4 Steel vs. Nickel 725

SAE-AISI S4 steel belongs to the iron alloys classification, while nickel 725 belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S4 steel and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
78
Tensile Strength: Ultimate (UTS), MPa 670 to 2140
860

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Melting Completion (Liquidus), °C 1430
1340
Melting Onset (Solidus), °C 1390
1270
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
75
Density, g/cm3 7.7
8.5
Embodied Carbon, kg CO2/kg material 2.0
13
Embodied Energy, MJ/kg 29
190
Embodied Water, L/kg 48
270

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24 to 77
28
Strength to Weight: Bending, points 22 to 48
24
Thermal Shock Resistance, points 20 to 65
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0.5 to 0.65
0 to 0.030
Chromium (Cr), % 0.1 to 0.5
19 to 22.5
Iron (Fe), % 95.2 to 96.9
2.3 to 15.3
Manganese (Mn), % 0.6 to 1.0
0 to 0.35
Molybdenum (Mo), % 0
7.0 to 9.5
Nickel (Ni), % 0
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 1.8 to 2.3
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.7
Vanadium (V), % 0.15 to 0.35
0