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Grade M30H Nickel vs. S35115 Stainless Steel

Grade M30H nickel belongs to the nickel alloys classification, while S35115 stainless steel belongs to the iron alloys. They have a modest 24% 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 M30H nickel and the bottom bar is S35115 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 11
46
Fatigue Strength, MPa 230
280
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
79
Tensile Strength: Ultimate (UTS), MPa 770
670
Tensile Strength: Yield (Proof), MPa 470
310

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1250
1420
Melting Onset (Solidus), °C 1200
1370
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 22
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 50
26
Density, g/cm3 8.6
7.9
Embodied Carbon, kg CO2/kg material 7.7
4.8
Embodied Energy, MJ/kg 110
67
Embodied Water, L/kg 250
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75
250
Resilience: Unit (Modulus of Resilience), kJ/m3 700
240
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 25
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 5.7
3.9
Thermal Shock Resistance, points 27
15

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 27 to 33
0
Iron (Fe), % 0 to 3.5
47.6 to 55.8
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.5
Nickel (Ni), % 57.9 to 70.3
19 to 22
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 2.7 to 3.7
0.5 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.015