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Grade M30C Nickel vs. S38100 Stainless Steel

Grade M30C nickel belongs to the nickel alloys classification, while S38100 stainless steel belongs to the iron alloys. They have a modest 22% 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 (5, in this case) are not shown.

For each property being compared, the top bar is grade M30C nickel and the bottom bar is S38100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 29
45
Fatigue Strength, MPa 170
210
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
76
Tensile Strength: Ultimate (UTS), MPa 510
580
Tensile Strength: Yield (Proof), MPa 250
230

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 900
970
Melting Completion (Liquidus), °C 1290
1400
Melting Onset (Solidus), °C 1240
1350
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 22
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 60
20
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 9.5
3.8
Embodied Energy, MJ/kg 140
54
Embodied Water, L/kg 250
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
210
Resilience: Unit (Modulus of Resilience), kJ/m3 200
140
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 16
21
Strength to Weight: Bending, points 16
20
Thermal Diffusivity, mm2/s 5.7
4.0
Thermal Shock Resistance, points 18
13

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.080
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 26 to 33
0
Iron (Fe), % 0 to 3.5
57.9 to 64
Manganese (Mn), % 0 to 1.5
0 to 2.0
Nickel (Ni), % 56.6 to 72
17.5 to 18.5
Niobium (Nb), % 1.0 to 3.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 1.0 to 2.0
1.5 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030