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Grade M30H Nickel vs. AWS BAg-18

Grade M30H nickel belongs to the nickel alloys classification, while AWS BAg-18 belongs to the otherwise unclassified metals. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade M30H nickel and the bottom bar is AWS BAg-18.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
82
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 61
30
Tensile Strength: Ultimate (UTS), MPa 770
170

Thermal Properties

Latent Heat of Fusion, J/g 320
130
Melting Completion (Liquidus), °C 1250
720
Melting Onset (Solidus), °C 1200
600
Specific Heat Capacity, J/kg-K 440
280
Thermal Expansion, µm/m-K 13
19

Otherwise Unclassified Properties

Density, g/cm3 8.6
9.7
Embodied Carbon, kg CO2/kg material 7.7
59
Embodied Energy, MJ/kg 110
930

Common Calculations

Stiffness to Weight: Axial, points 10
4.7
Stiffness to Weight: Bending, points 21
15
Strength to Weight: Axial, points 25
4.9
Strength to Weight: Bending, points 22
7.0
Thermal Shock Resistance, points 27
7.7

Alloy Composition


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Carbon (C), % 0 to 0.3
0
Copper (Cu), % 27 to 33
28.4 to 31.5
Iron (Fe), % 0 to 3.5
0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 57.9 to 70.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 2.7 to 3.7
0
Silver (Ag), % 0
59 to 61
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
9.5 to 10.5
Residuals, % 0
0 to 0.15