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AWS BNi-8 vs. S32803 Stainless Steel

AWS BNi-8 belongs to the nickel alloys classification, while S32803 stainless steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-8 and the bottom bar is S32803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
210
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 67
81
Tensile Strength: Ultimate (UTS), MPa 570
680

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Melting Completion (Liquidus), °C 1010
1450
Melting Onset (Solidus), °C 980
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 46
19
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 8.2
3.7
Embodied Energy, MJ/kg 120
53
Embodied Water, L/kg 220
180

Common Calculations

Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
25
Strength to Weight: Bending, points 19
22
Thermal Shock Resistance, points 17
22

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0 to 0.060
0 to 0.015
Chromium (Cr), % 0
28 to 29
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0
62.9 to 67.1
Manganese (Mn), % 21.5 to 24.5
0 to 0.5
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 61.6 to 68.5
3.0 to 4.0
Niobium (Nb), % 0
0.15 to 0.5
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.020
0 to 0.020
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 6.0 to 8.0
0 to 0.55
Sulfur (S), % 0 to 0.020
0 to 0.0035
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0