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AISI 440B Stainless Steel vs. AWS BNi-1

AISI 440B stainless steel belongs to the iron alloys classification, while AWS BNi-1 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-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
70
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
450

Thermal Properties

Latent Heat of Fusion, J/g 280
360
Melting Completion (Liquidus), °C 1480
1040
Melting Onset (Solidus), °C 1370
980
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
55
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.2
8.8
Embodied Energy, MJ/kg 31
120
Embodied Water, L/kg 120
240

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 70
16
Strength to Weight: Bending, points 24 to 45
16
Thermal Shock Resistance, points 27 to 70
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0.75 to 1.0
0.6 to 0.9
Chromium (Cr), % 16 to 18
13 to 15
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 78.2 to 83.3
4.0 to 5.0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0
69.8 to 75.7
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