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AWS BAg-18 vs. Grade M30H Nickel

AWS BAg-18 belongs to the otherwise unclassified metals classification, while grade M30H nickel belongs to the nickel alloys. 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 AWS BAg-18 and the bottom bar is grade M30H nickel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition


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