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Grade M30H Nickel vs. AWS BNi-4

Both grade M30H nickel and AWS BNi-4 are nickel alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 68% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade M30H nickel and the bottom bar is AWS BNi-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
180
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 61
67
Tensile Strength: Ultimate (UTS), MPa 770
430

Thermal Properties

Latent Heat of Fusion, J/g 320
340
Melting Completion (Liquidus), °C 1250
1070
Melting Onset (Solidus), °C 1200
980
Specific Heat Capacity, J/kg-K 440
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 50
60
Density, g/cm3 8.6
8.5
Embodied Carbon, kg CO2/kg material 7.7
10
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 250
220

Common Calculations

Stiffness to Weight: Axial, points 10
12
Stiffness to Weight: Bending, points 21
22
Strength to Weight: Axial, points 25
14
Strength to Weight: Bending, points 22
15
Thermal Shock Resistance, points 27
16

Alloy Composition


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Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
1.5 to 2.2
Carbon (C), % 0 to 0.3
0 to 0.060
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 27 to 33
0
Iron (Fe), % 0 to 3.5
0 to 1.5
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 57.9 to 70.3
91.4 to 95.5
Phosphorus (P), % 0 to 0.030
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 2.7 to 3.7
3.0 to 4.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5