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AISI 440B Stainless Steel vs. AWS BNi-3

AISI 440B stainless steel belongs to the iron alloys classification, while AWS BNi-3 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AISI 440B stainless steel and the bottom bar is AWS BNi-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
170
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
66
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
430

Thermal Properties

Latent Heat of Fusion, J/g 280
350
Melting Completion (Liquidus), °C 1480
1040
Melting Onset (Solidus), °C 1370
980
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
60
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 2.2
9.9
Embodied Energy, MJ/kg 31
140
Embodied Water, L/kg 120
220

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 27 to 70
14
Strength to Weight: Bending, points 24 to 45
15
Thermal Shock Resistance, points 27 to 70
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0.75 to 1.0
0 to 0.060
Chromium (Cr), % 16 to 18
0
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 78.2 to 83.3
0 to 0.5
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0
90.1 to 93.3
Phosphorus (P), % 0 to 0.040
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 1.0
4.0 to 5.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5