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AWS BNi-3 vs. N08031 Stainless Steel

AWS BNi-3 belongs to the nickel alloys classification, while N08031 stainless steel belongs to the iron alloys. They have a modest 31% 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 (12, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-3 and the bottom bar is N08031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
210
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 66
81
Tensile Strength: Ultimate (UTS), MPa 430
730

Thermal Properties

Latent Heat of Fusion, J/g 350
310
Melting Completion (Liquidus), °C 1040
1440
Melting Onset (Solidus), °C 980
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 10
18

Otherwise Unclassified Properties

Base Metal Price, % relative 60
39
Density, g/cm3 8.3
8.1
Embodied Carbon, kg CO2/kg material 9.9
7.1
Embodied Energy, MJ/kg 140
96
Embodied Water, L/kg 220
240

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 14
25
Strength to Weight: Bending, points 15
22
Thermal Shock Resistance, points 17
14

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0 to 0.015
Chromium (Cr), % 0
26 to 28
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
1.0 to 1.4
Iron (Fe), % 0 to 0.5
29 to 36.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 90.1 to 93.3
30 to 32
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.020
0 to 0.020
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
0 to 0.3
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0