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AWS BNi-4 vs. S40930 Stainless Steel

AWS BNi-4 belongs to the nickel alloys classification, while S40930 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-4 and the bottom bar is S40930 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 67
75
Tensile Strength: Ultimate (UTS), MPa 430
430

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Melting Completion (Liquidus), °C 1070
1450
Melting Onset (Solidus), °C 980
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
10

Otherwise Unclassified Properties

Base Metal Price, % relative 60
8.5
Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 10
2.3
Embodied Energy, MJ/kg 140
32
Embodied Water, L/kg 220
94

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 14
16
Strength to Weight: Bending, points 15
16
Thermal Shock Resistance, points 16
16

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 0.030
Chromium (Cr), % 0
10.5 to 11.7
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 1.5
84.7 to 89.4
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 91.4 to 95.5
0 to 0.5
Niobium (Nb), % 0
0.080 to 0.75
Nitrogen (N), % 0
0 to 0.030
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 1.0
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0 to 0.050
0.050 to 0.2
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0