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SAE-AISI P20 Steel vs. Nickel 908

SAE-AISI P20 steel belongs to the iron alloys classification, while nickel 908 belongs to the nickel alloys. They have 42% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P20 steel and the bottom bar is nickel 908.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
70
Tensile Strength: Ultimate (UTS), MPa 540 to 1050
1340

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 45
11
Thermal Expansion, µm/m-K 12
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
50
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.6
9.3
Embodied Energy, MJ/kg 21
140
Embodied Water, L/kg 52
170

Common Calculations

PREN (Pitting Resistance) 2.6
4.2
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 19 to 37
45
Strength to Weight: Bending, points 19 to 29
33
Thermal Diffusivity, mm2/s 12
2.9
Thermal Shock Resistance, points 18 to 35
61

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0 to 0.012
Carbon (C), % 0.28 to 0.4
0 to 0.030
Chromium (Cr), % 0.4 to 2.0
3.8 to 4.5
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 95.2 to 98.5
35.6 to 44.6
Manganese (Mn), % 0.35 to 0.71
0 to 1.0
Molybdenum (Mo), % 0.3 to 0.55
0
Nickel (Ni), % 0
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 0.8
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
1.2 to 1.8