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AWS BNi-4 vs. S20910 Stainless Steel

AWS BNi-4 belongs to the nickel alloys classification, while S20910 stainless steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-4 and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 67
79
Tensile Strength: Ultimate (UTS), MPa 430
780 to 940

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Melting Completion (Liquidus), °C 1070
1420
Melting Onset (Solidus), °C 980
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 60
22
Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 10
4.8
Embodied Energy, MJ/kg 140
68
Embodied Water, L/kg 220
180

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 14
28 to 33
Strength to Weight: Bending, points 15
24 to 27
Thermal Shock Resistance, points 16
17 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 1.5 to 2.2
0
Carbon (C), % 0 to 0.060
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 1.5
52.1 to 62.1
Manganese (Mn), % 0
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 91.4 to 95.5
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.020
0 to 0.040
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 3.0 to 4.0
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0
0.1 to 0.3
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0