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AWS BNi-4 vs. AISI 445 Stainless Steel

AWS BNi-4 belongs to the nickel alloys classification, while AISI 445 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 AISI 445 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
480

Thermal Properties

Latent Heat of Fusion, J/g 340
290
Melting Completion (Liquidus), °C 1070
1440
Melting Onset (Solidus), °C 980
1390
Specific Heat Capacity, J/kg-K 470
480
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
2.6
Embodied Energy, MJ/kg 140
38
Embodied Water, L/kg 220
130

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 14
17
Strength to Weight: Bending, points 15
18
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 0.020
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0.3 to 0.6
Iron (Fe), % 0 to 1.5
74.9 to 80.7
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 91.4 to 95.5
0 to 0.6
Niobium (Nb), % 0
0 to 0.8
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 0.012
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0