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S31254 Stainless Steel vs. AWS BNi-11

S31254 stainless steel belongs to the iron alloys classification, while AWS BNi-11 belongs to the nickel 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 (17, in this case) are not shown.

For each property being compared, the top bar is S31254 stainless steel and the bottom bar is AWS BNi-11.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 80
74
Tensile Strength: Ultimate (UTS), MPa 720
600

Thermal Properties

Latent Heat of Fusion, J/g 300
340
Melting Completion (Liquidus), °C 1460
1100
Melting Onset (Solidus), °C 1420
970
Specific Heat Capacity, J/kg-K 460
450
Thermal Expansion, µm/m-K 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 28
75
Density, g/cm3 8.0
9.1
Embodied Carbon, kg CO2/kg material 5.5
11
Embodied Energy, MJ/kg 74
160
Embodied Water, L/kg 190
230

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 22
17
Thermal Shock Resistance, points 15
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.2 to 3.1
Carbon (C), % 0 to 0.020
0.3 to 0.5
Chromium (Cr), % 19.5 to 20.5
9.0 to 11.8
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51.4 to 56.3
2.5 to 4.0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 6.0 to 6.5
0
Nickel (Ni), % 17.5 to 18.5
62.9 to 71.2
Nitrogen (N), % 0.18 to 0.22
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.8
3.4 to 4.3
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 0
11.5 to 12.8
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5