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SAE-AISI 5140 Steel vs. Grade N12MV Nickel

SAE-AISI 5140 steel belongs to the iron alloys classification, while grade N12MV nickel belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5140 steel and the bottom bar is grade N12MV nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 12 to 29
6.8
Fatigue Strength, MPa 220 to 570
130
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
84
Tensile Strength: Ultimate (UTS), MPa 560 to 970
600
Tensile Strength: Yield (Proof), MPa 290 to 840
310

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 420
900
Melting Completion (Liquidus), °C 1460
1620
Melting Onset (Solidus), °C 1420
1570
Specific Heat Capacity, J/kg-K 470
390
Thermal Expansion, µm/m-K 13
10

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
75
Density, g/cm3 7.8
9.2
Embodied Carbon, kg CO2/kg material 1.4
16
Embodied Energy, MJ/kg 19
200
Embodied Water, L/kg 49
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
34
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 20 to 34
18
Strength to Weight: Bending, points 19 to 28
17
Thermal Shock Resistance, points 16 to 29
19

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.12
Chromium (Cr), % 0.7 to 0.9
0 to 1.0
Iron (Fe), % 97.3 to 98.1
4.0 to 6.0
Manganese (Mn), % 0.7 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
26 to 30
Nickel (Ni), % 0
60.2 to 69.8
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0.2 to 0.6