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SAE-AISI M2 Steel vs. Nickel 908

SAE-AISI M2 steel belongs to the iron alloys classification, while nickel 908 belongs to the nickel alloys. They have 45% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M2 steel and the bottom bar is nickel 908.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 77
70
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
1340

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1610
1430
Melting Onset (Solidus), °C 1570
1380
Specific Heat Capacity, J/kg-K 440
460
Thermal Conductivity, W/m-K 22
11
Thermal Expansion, µm/m-K 10
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 24
50
Density, g/cm3 8.4
8.3
Embodied Carbon, kg CO2/kg material 8.8
9.3
Embodied Energy, MJ/kg 130
140
Embodied Water, L/kg 98
170

Common Calculations

PREN (Pitting Resistance) 31
4.2
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 25 to 71
45
Strength to Weight: Bending, points 22 to 44
33
Thermal Diffusivity, mm2/s 5.9
2.9
Thermal Shock Resistance, points 27 to 76
61

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0 to 0.012
Carbon (C), % 0.78 to 1.1
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
3.8 to 4.5
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 78.5 to 83.4
35.6 to 44.6
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
47 to 51
Niobium (Nb), % 0
2.7 to 3.3
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.2 to 0.45
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
1.2 to 1.8
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0