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Nickel 625 vs. SAE-AISI M3 Class 2 Steel

Nickel 625 belongs to the nickel alloys classification, while SAE-AISI M3 class 2 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is SAE-AISI M3 class 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 790 to 910
770 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Melting Completion (Liquidus), °C 1350
1620
Melting Onset (Solidus), °C 1290
1570
Specific Heat Capacity, J/kg-K 440
440
Thermal Conductivity, W/m-K 11
26
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 80
25
Density, g/cm3 8.6
8.3
Embodied Carbon, kg CO2/kg material 14
12
Embodied Energy, MJ/kg 190
180
Embodied Water, L/kg 290
110

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 26 to 29
26 to 74
Strength to Weight: Bending, points 22 to 24
22 to 45
Thermal Diffusivity, mm2/s 2.9
7.2
Thermal Shock Resistance, points 22 to 25
24 to 69

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
1.2 to 1.3
Chromium (Cr), % 20 to 23
3.8 to 4.5
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 5.0
75.8 to 82.3
Manganese (Mn), % 0 to 0.5
0.15 to 0.4
Molybdenum (Mo), % 8.0 to 10
4.8 to 6.5
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
0.2 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0
Tungsten (W), % 0
5.0 to 6.8
Vanadium (V), % 0
2.8 to 3.8

Comparable Variants