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Austenitic Grey Cast Iron vs. AWS BNi-5

Austenitic grey cast iron belongs to the iron alloys classification, while AWS BNi-5 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is austenitic grey cast iron and the bottom bar is AWS BNi-5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Poisson's Ratio 0.29 to 0.3
0.29
Shear Modulus, GPa 69 to 72
72
Tensile Strength: Ultimate (UTS), MPa 150 to 230
470

Thermal Properties

Latent Heat of Fusion, J/g 280 to 350
470
Melting Completion (Liquidus), °C 1340 to 1400
1140
Melting Onset (Solidus), °C 1290 to 1350
1080
Specific Heat Capacity, J/kg-K 470 to 490
510
Thermal Expansion, µm/m-K 13 to 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14 to 24
55
Density, g/cm3 7.7 to 8.1
7.7
Embodied Carbon, kg CO2/kg material 3.1 to 4.7
8.9
Embodied Energy, MJ/kg 43 to 65
130
Embodied Water, L/kg 93 to 120
260

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23 to 25
25
Strength to Weight: Axial, points 5.3 to 8.2
17
Strength to Weight: Bending, points 7.9 to 11
17
Thermal Shock Resistance, points 4.5 to 6.5
15