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Nickel 625 vs. SAE-AISI O2 Steel

Nickel 625 belongs to the nickel alloys classification, while SAE-AISI O2 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 O2 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
640 to 2050

Thermal Properties

Latent Heat of Fusion, J/g 330
250
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
43
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
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 80
2.4
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
1.8
Embodied Energy, MJ/kg 190
26
Embodied Water, L/kg 290
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 29
23 to 73
Strength to Weight: Bending, points 22 to 24
21 to 46
Thermal Diffusivity, mm2/s 2.9
12
Thermal Shock Resistance, points 22 to 25
22 to 70

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0.85 to 1.0
Chromium (Cr), % 20 to 23
0 to 0.5
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 5.0
95 to 97.8
Manganese (Mn), % 0 to 0.5
1.4 to 1.8
Molybdenum (Mo), % 8.0 to 10
0 to 0.3
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 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0
Vanadium (V), % 0
0 to 0.3

Comparable Variants