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Grade M30C Nickel vs. SAE-AISI 4720 Steel

Grade M30C nickel belongs to the nickel alloys classification, while SAE-AISI 4720 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade M30C nickel and the bottom bar is SAE-AISI 4720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 29
25
Fatigue Strength, MPa 170
260
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 61
73
Tensile Strength: Ultimate (UTS), MPa 510
490
Tensile Strength: Yield (Proof), MPa 250
350

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 900
410
Melting Completion (Liquidus), °C 1290
1460
Melting Onset (Solidus), °C 1240
1420
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 22
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 60
2.9
Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 9.5
1.6
Embodied Energy, MJ/kg 140
21
Embodied Water, L/kg 250
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 200
330
Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 16
17
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 5.7
10
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.3
0.17 to 0.22
Chromium (Cr), % 0
0.35 to 0.55
Copper (Cu), % 26 to 33
0
Iron (Fe), % 0 to 3.5
96.7 to 97.8
Manganese (Mn), % 0 to 1.5
0.5 to 0.7
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 56.6 to 72
0.9 to 1.2
Niobium (Nb), % 1.0 to 3.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 1.0 to 2.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040