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AWS BNi-8 vs. Austenitic Nodular Cast Iron

AWS BNi-8 belongs to the nickel alloys classification, while austenitic nodular cast iron belongs to the iron alloys. There are 19 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 AWS BNi-8 and the bottom bar is austenitic nodular cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
180 to 190
Poisson's Ratio 0.32
0.29 to 0.3
Shear Modulus, GPa 67
70 to 72
Tensile Strength: Ultimate (UTS), MPa 570
430 to 500

Thermal Properties

Latent Heat of Fusion, J/g 390
280 to 350
Melting Completion (Liquidus), °C 1010
1340 to 1400
Melting Onset (Solidus), °C 980
1300 to 1360
Specific Heat Capacity, J/kg-K 480
470 to 490
Thermal Expansion, µm/m-K 13
13 to 14

Otherwise Unclassified Properties

Base Metal Price, % relative 46
16 to 25
Density, g/cm3 7.9
7.7 to 8.0
Embodied Carbon, kg CO2/kg material 8.2
3.5 to 4.9
Embodied Energy, MJ/kg 120
48 to 68
Embodied Water, L/kg 220
91 to 120

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 24
24 to 25
Strength to Weight: Axial, points 20
15 to 18
Strength to Weight: Bending, points 19
16 to 18
Thermal Shock Resistance, points 17
12 to 15