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AWS BNi-11 vs. SAE-AISI T8 Steel

AWS BNi-11 belongs to the nickel alloys classification, while SAE-AISI T8 steel belongs to the iron alloys. They have a modest 20% 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 (4, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-11 and the bottom bar is SAE-AISI T8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 74
78
Tensile Strength: Ultimate (UTS), MPa 600
780 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Melting Completion (Liquidus), °C 1100
1730
Melting Onset (Solidus), °C 970
1670
Specific Heat Capacity, J/kg-K 450
420
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
45
Density, g/cm3 9.1
9.0
Embodied Carbon, kg CO2/kg material 11
10
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 230
120

Common Calculations

Stiffness to Weight: Axial, points 12
12
Stiffness to Weight: Bending, points 21
22
Strength to Weight: Axial, points 18
24 to 66
Strength to Weight: Bending, points 17
21 to 41
Thermal Shock Resistance, points 20
24 to 66

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 2.2 to 3.1
0
Carbon (C), % 0.3 to 0.5
0.75 to 0.85
Chromium (Cr), % 9.0 to 11.8
3.8 to 4.5
Cobalt (Co), % 0 to 0.1
4.3 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 2.5 to 4.0
69.3 to 75.4
Manganese (Mn), % 0
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 1.0
Nickel (Ni), % 62.9 to 71.2
0 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.030
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 3.4 to 4.3
0.2 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 11.5 to 12.8
13.3 to 14.8
Vanadium (V), % 0
1.8 to 2.4
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0