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AWS BNi-5a vs. Austenitic Grey Cast Iron

AWS BNi-5a belongs to the nickel alloys classification, while austenitic grey cast iron belongs to the iron 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 AWS BNi-5a and the bottom bar is austenitic grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Poisson's Ratio 0.29
0.29 to 0.3
Shear Modulus, GPa 72
69 to 72
Tensile Strength: Ultimate (UTS), MPa 480
150 to 230

Thermal Properties

Latent Heat of Fusion, J/g 420
280 to 350
Melting Completion (Liquidus), °C 1150
1340 to 1400
Melting Onset (Solidus), °C 1070
1290 to 1350
Specific Heat Capacity, J/kg-K 500
470 to 490
Thermal Expansion, µm/m-K 12
13 to 14

Otherwise Unclassified Properties

Base Metal Price, % relative 55
14 to 24
Density, g/cm3 7.9
7.7 to 8.1
Embodied Carbon, kg CO2/kg material 9.0
3.1 to 4.7
Embodied Energy, MJ/kg 130
43 to 65
Embodied Water, L/kg 260
93 to 120

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23 to 25
Strength to Weight: Axial, points 17
5.3 to 8.2
Strength to Weight: Bending, points 17
7.9 to 11
Thermal Shock Resistance, points 15
4.5 to 6.5