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AWS BNi-4 vs. AISI 446 Stainless Steel

AWS BNi-4 belongs to the nickel alloys classification, while AISI 446 stainless steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-4 and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.31
0.27
Shear Modulus, GPa 67
79
Tensile Strength: Ultimate (UTS), MPa 430
570

Thermal Properties

Latent Heat of Fusion, J/g 340
290
Melting Completion (Liquidus), °C 1070
1510
Melting Onset (Solidus), °C 980
1430
Specific Heat Capacity, J/kg-K 470
490
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 60
12
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 10
2.4
Embodied Energy, MJ/kg 140
35
Embodied Water, L/kg 220
150

Common Calculations

Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 22
26
Strength to Weight: Axial, points 14
21
Strength to Weight: Bending, points 15
20
Thermal Shock Resistance, points 16
19

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 0.2
Chromium (Cr), % 0
23 to 27
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 1.5
69.2 to 77
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 91.4 to 95.5
0 to 0.75
Nitrogen (N), % 0
0 to 0.25
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 0.030
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0