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S40977 Stainless Steel vs. Grade M30H Nickel

S40977 stainless steel belongs to the iron alloys classification, while grade M30H nickel belongs to the nickel 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 S40977 stainless steel and the bottom bar is grade M30H nickel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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