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Grade M30C Nickel vs. S31254 Stainless Steel

Grade M30C nickel belongs to the nickel alloys classification, while S31254 stainless steel belongs to the iron alloys. They have a modest 21% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 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 grade M30C nickel and the bottom bar is S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 29
40
Fatigue Strength, MPa 170
290
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
80
Tensile Strength: Ultimate (UTS), MPa 510
720
Tensile Strength: Yield (Proof), MPa 250
330

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Mechanical, °C 900
1090
Melting Completion (Liquidus), °C 1290
1460
Melting Onset (Solidus), °C 1240
1420
Specific Heat Capacity, J/kg-K 430
460
Thermal Conductivity, W/m-K 22
14
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 60
28
Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 9.5
5.5
Embodied Energy, MJ/kg 140
74
Embodied Water, L/kg 250
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
240
Resilience: Unit (Modulus of Resilience), kJ/m3 200
270
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 16
25
Strength to Weight: Bending, points 16
22
Thermal Diffusivity, mm2/s 5.7
3.8
Thermal Shock Resistance, points 18
15

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.020
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 26 to 33
0.5 to 1.0
Iron (Fe), % 0 to 3.5
51.4 to 56.3
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 6.5
Nickel (Ni), % 56.6 to 72
17.5 to 18.5
Niobium (Nb), % 1.0 to 3.0
0
Nitrogen (N), % 0
0.18 to 0.22
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 1.0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.010