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AISI 409 Stainless Steel vs. AWS BNi-9

AISI 409 stainless steel belongs to the iron alloys classification, while AWS BNi-9 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is AWS BNi-9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 420
580

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1450
1060
Melting Onset (Solidus), °C 1400
1060
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
60
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 2.0
9.3
Embodied Energy, MJ/kg 28
130
Embodied Water, L/kg 94
260

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 16
18
Thermal Shock Resistance, points 15
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
3.3 to 4.0
Carbon (C), % 0 to 0.080
0 to 0.060
Chromium (Cr), % 10.5 to 11.7
13.5 to 16.5
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 84.9 to 89.5
0 to 1.5
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.5
77.1 to 83.3
Phosphorus (P), % 0 to 0.045
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0 to 0.75
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5