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Grade M30C Nickel vs. AWS BNi-5a

Both grade M30C nickel and AWS BNi-5a are nickel alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 66% 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 M30C nickel and the bottom bar is AWS BNi-5a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 61
72
Tensile Strength: Ultimate (UTS), MPa 510
480

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Melting Completion (Liquidus), °C 1290
1150
Melting Onset (Solidus), °C 1240
1070
Specific Heat Capacity, J/kg-K 430
500
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 60
55
Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 9.5
9.0
Embodied Energy, MJ/kg 140
130
Embodied Water, L/kg 250
260

Common Calculations

Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 16
17
Strength to Weight: Bending, points 16
17
Thermal Shock Resistance, points 18
15

Alloy Composition


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Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
1.0 to 1.5
Carbon (C), % 0 to 0.3
0 to 0.1
Chromium (Cr), % 0
18.5 to 19.5
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 26 to 33
0
Iron (Fe), % 0 to 3.5
0 to 0.5
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 56.6 to 72
70.1 to 73.5
Niobium (Nb), % 1.0 to 3.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 1.0 to 2.0
7.0 to 7.5
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