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SAE-AISI M3 Class 1 Steel vs. Nickel 825

SAE-AISI M3 class 1 steel belongs to the iron alloys classification, while nickel 825 belongs to the nickel alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 1 steel and the bottom bar is nickel 825.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
650

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1610
1400
Melting Onset (Solidus), °C 1570
1370
Specific Heat Capacity, J/kg-K 440
460
Thermal Conductivity, W/m-K 26
11
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 25
41
Density, g/cm3 8.3
8.2
Embodied Carbon, kg CO2/kg material 10
7.2
Embodied Energy, MJ/kg 150
100
Embodied Water, L/kg 100
230

Common Calculations

PREN (Pitting Resistance) 33
31
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
22
Strength to Weight: Bending, points 22 to 44
20
Thermal Diffusivity, mm2/s 7.2
2.9
Thermal Shock Resistance, points 24 to 67
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Carbon (C), % 1.0 to 1.1
0 to 0.050
Chromium (Cr), % 3.8 to 4.5
19.5 to 23.5
Copper (Cu), % 0 to 0.25
1.5 to 3.0
Iron (Fe), % 76.9 to 82.9
22 to 37.9
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.8 to 6.5
2.5 to 3.5
Nickel (Ni), % 0 to 0.3
38 to 46
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
0 to 0.050
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.6 to 1.2
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0