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Grade M30H Nickel vs. S40977 Stainless Steel

Grade M30H nickel belongs to the nickel alloys classification, while S40977 stainless steel belongs to the iron alloys. 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 S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 11
21
Fatigue Strength, MPa 230
200
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
76
Tensile Strength: Ultimate (UTS), MPa 770
510
Tensile Strength: Yield (Proof), MPa 470
310

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 900
720
Melting Completion (Liquidus), °C 1250
1440
Melting Onset (Solidus), °C 1200
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 22
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 50
6.5
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.9
Embodied Energy, MJ/kg 110
27
Embodied Water, L/kg 250
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75
92
Resilience: Unit (Modulus of Resilience), kJ/m3 700
250
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 5.7
6.7
Thermal Shock Resistance, points 27
18

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.030
Chromium (Cr), % 0
10.5 to 12.5
Copper (Cu), % 27 to 33
0
Iron (Fe), % 0 to 3.5
83.9 to 89.2
Manganese (Mn), % 0 to 1.5
0 to 1.5
Nickel (Ni), % 57.9 to 70.3
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 2.7 to 3.7
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015