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Nickel 625 vs. SAE-AISI S2 Steel

Nickel 625 belongs to the nickel alloys classification, while SAE-AISI S2 steel belongs to the iron 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 nickel 625 and the bottom bar is SAE-AISI S2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
72
Tensile Strength: Ultimate (UTS), MPa 790 to 910
670 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Melting Completion (Liquidus), °C 1350
1450
Melting Onset (Solidus), °C 1290
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 11
44
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 80
2.6
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
2.1
Embodied Energy, MJ/kg 190
30
Embodied Water, L/kg 290
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 29
24 to 69
Strength to Weight: Bending, points 22 to 24
22 to 44
Thermal Diffusivity, mm2/s 2.9
12
Thermal Shock Resistance, points 22 to 25
23 to 68

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0.4 to 0.55
Chromium (Cr), % 20 to 23
0
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 5.0
96 to 98.1
Manganese (Mn), % 0 to 0.5
0.3 to 0.5
Molybdenum (Mo), % 8.0 to 10
0.3 to 0.6
Nickel (Ni), % 58 to 68.9
0 to 0.3
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.5
0.9 to 1.2
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0
Vanadium (V), % 0
0 to 0.5

Comparable Variants