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SAE-AISI P20 Steel vs. Grade M35-2 Nickel

SAE-AISI P20 steel belongs to the iron alloys classification, while grade M35-2 nickel belongs to the nickel alloys. There are 23 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 P20 steel and the bottom bar is grade M35-2 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
62
Tensile Strength: Ultimate (UTS), MPa 540 to 1050
500

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1460
1280
Melting Onset (Solidus), °C 1420
1230
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 45
22
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
55
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 1.6
8.1
Embodied Energy, MJ/kg 21
110
Embodied Water, L/kg 52
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 19 to 37
16
Strength to Weight: Bending, points 19 to 29
16
Thermal Diffusivity, mm2/s 12
5.7
Thermal Shock Resistance, points 18 to 35
17

Alloy Composition

Carbon (C), % 0.28 to 0.4
0 to 0.35
Chromium (Cr), % 0.4 to 2.0
0
Copper (Cu), % 0 to 0.25
26 to 33
Iron (Fe), % 95.2 to 98.5
0 to 3.5
Manganese (Mn), % 0.35 to 0.71
0 to 1.5
Molybdenum (Mo), % 0.3 to 0.55
0
Nickel (Ni), % 0
59.1 to 74
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.8
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030