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AWS BNi-2 vs. ASTM F15 Fe-Ni-Co

AWS BNi-2 belongs to the nickel alloys classification, while ASTM F15 Fe-Ni-Co belongs to the iron alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. 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-2 and the bottom bar is ASTM F15 Fe-Ni-Co.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Poisson's Ratio 0.3
0.3
Shear Modulus, GPa 68
73
Tensile Strength: Ultimate (UTS), MPa 440
520 to 880

Thermal Properties

Latent Heat of Fusion, J/g 360
270
Melting Completion (Liquidus), °C 1000
1410
Melting Onset (Solidus), °C 970
1450
Specific Heat Capacity, J/kg-K 490
460
Thermal Expansion, µm/m-K 11
6.0

Otherwise Unclassified Properties

Base Metal Price, % relative 55
49
Density, g/cm3 8.2
8.3
Embodied Carbon, kg CO2/kg material 9.3
5.2
Embodied Energy, MJ/kg 130
71
Embodied Water, L/kg 230
190

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 15
17 to 29
Strength to Weight: Bending, points 16
17 to 24
Thermal Shock Resistance, points 16
32 to 55

Alloy Composition

Aluminum (Al), % 0 to 0.050
0 to 0.1
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0 to 0.040
Chromium (Cr), % 6.0 to 8.0
0 to 0.2
Cobalt (Co), % 0 to 0.1
16 to 18
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 2.5 to 3.5
50.3 to 56
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 79.1 to 84.8
28 to 30
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
0 to 0.2
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
0 to 0.1
Zirconium (Zr), % 0 to 0.050
0 to 0.1
Residuals, % 0 to 0.5
0