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AWS BNi-4 vs. AISI 314 Stainless Steel

AWS BNi-4 belongs to the nickel alloys classification, while AISI 314 stainless steel belongs to the iron alloys. They have a modest 24% 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 (16, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-4 and the bottom bar is AISI 314 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
78
Tensile Strength: Ultimate (UTS), MPa 430
590

Thermal Properties

Latent Heat of Fusion, J/g 340
330
Melting Completion (Liquidus), °C 1070
1380
Melting Onset (Solidus), °C 980
1340
Specific Heat Capacity, J/kg-K 470
490
Thermal Expansion, µm/m-K 11
15

Otherwise Unclassified Properties

Base Metal Price, % relative 60
25
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 10
4.3
Embodied Energy, MJ/kg 140
62
Embodied Water, L/kg 220
190

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 14
21
Strength to Weight: Bending, points 15
20
Thermal Shock Resistance, points 16
14

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 0.25
Chromium (Cr), % 0
23 to 26
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 1.5
46.7 to 56.5
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 91.4 to 95.5
19 to 22
Phosphorus (P), % 0 to 0.020
0 to 0.045
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 3.0 to 4.0
1.5 to 3.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0