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SAE-AISI P21 Steel vs. N06250 Nickel

SAE-AISI P21 steel belongs to the iron alloys classification, while N06250 nickel belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P21 steel and the bottom bar is N06250 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
82
Tensile Strength: Ultimate (UTS), MPa 1130
710

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Melting Completion (Liquidus), °C 1450
1490
Melting Onset (Solidus), °C 1410
1440
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
55
Density, g/cm3 7.9
8.6
Embodied Carbon, kg CO2/kg material 2.3
10
Embodied Energy, MJ/kg 32
140
Embodied Water, L/kg 62
270

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 40
23
Strength to Weight: Bending, points 31
21
Thermal Shock Resistance, points 37
19

Alloy Composition

Carbon (C), % 0.18 to 0.22
0 to 0.020
Chromium (Cr), % 0 to 0.5
20 to 23
Cobalt (Co), % 1.1 to 1.3
0
Copper (Cu), % 0 to 0.25
0.25 to 1.3
Iron (Fe), % 92.1 to 94.2
7.4 to 19.4
Manganese (Mn), % 0.35 to 0.72
0 to 1.0
Molybdenum (Mo), % 0
10.1 to 12
Nickel (Ni), % 3.9 to 4.3
50 to 54
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.4
0 to 0.090
Sulfur (S), % 0 to 0.030
0 to 0.0050
Tungsten (W), % 0
0.25 to 1.3
Vanadium (V), % 0.15 to 0.25
0