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AWS BNi-3 vs. EN 1.7231 Steel

AWS BNi-3 belongs to the nickel alloys classification, while EN 1.7231 steel belongs to the iron 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 AWS BNi-3 and the bottom bar is EN 1.7231 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
190
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 66
73
Tensile Strength: Ultimate (UTS), MPa 430
790 to 930

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Melting Completion (Liquidus), °C 1040
1460
Melting Onset (Solidus), °C 980
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 60
2.5
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 9.9
1.5
Embodied Energy, MJ/kg 140
20
Embodied Water, L/kg 220
51

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 14
28 to 33
Strength to Weight: Bending, points 15
24 to 27
Thermal Shock Resistance, points 17
23 to 27

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0.38 to 0.45
Chromium (Cr), % 0
0.8 to 1.2
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 0.5
96.4 to 98.1
Manganese (Mn), % 0
0.6 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.3
Nickel (Ni), % 90.1 to 93.3
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
0 to 0.6
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