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Grade M30H Nickel vs. AWS ERNiCrMo-2

Both grade M30H nickel and AWS ERNiCrMo-2 are nickel alloys. They have 50% of their average alloy composition in common. There are 23 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 M30H nickel and the bottom bar is AWS ERNiCrMo-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
210
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
81
Tensile Strength: Ultimate (UTS), MPa 770
750

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1250
1460
Melting Onset (Solidus), °C 1200
1410
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 22
11
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 50
55
Density, g/cm3 8.6
8.4
Embodied Carbon, kg CO2/kg material 7.7
9.2
Embodied Energy, MJ/kg 110
120
Embodied Water, L/kg 250
270

Common Calculations

Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 25
25
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 5.7
2.9
Thermal Shock Resistance, points 27
20

Alloy Composition


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Carbon (C), % 0 to 0.3
0.050 to 0.15
Chromium (Cr), % 0
20.5 to 23
Cobalt (Co), % 0
0.5 to 2.5
Copper (Cu), % 27 to 33
0 to 0.5
Iron (Fe), % 0 to 3.5
17 to 20
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 57.9 to 70.3
40.3 to 53.8
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 0.030
Tungsten (W), % 0
0.2 to 1.0
Residuals, % 0
0 to 0.5