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SAE-AISI S4 Steel vs. Nickel 625

SAE-AISI S4 steel belongs to the iron alloys classification, while nickel 625 belongs to the nickel alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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 625.

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
79
Tensile Strength: Ultimate (UTS), MPa 670 to 2140
790 to 910

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Melting Completion (Liquidus), °C 1430
1350
Melting Onset (Solidus), °C 1390
1290
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 44
11
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
80
Density, g/cm3 7.7
8.6
Embodied Carbon, kg CO2/kg material 2.0
14
Embodied Energy, MJ/kg 29
190
Embodied Water, L/kg 48
290

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24 to 77
26 to 29
Strength to Weight: Bending, points 22 to 48
22 to 24
Thermal Diffusivity, mm2/s 12
2.9
Thermal Shock Resistance, points 20 to 65
22 to 25

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 0.5 to 0.65
0 to 0.1
Chromium (Cr), % 0.1 to 0.5
20 to 23
Cobalt (Co), % 0
0 to 1.0
Iron (Fe), % 95.2 to 96.9
0 to 5.0
Manganese (Mn), % 0.6 to 1.0
0 to 0.5
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0
58 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 1.8 to 2.3
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0 to 0.4
Vanadium (V), % 0.15 to 0.35
0

Comparable Variants