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AWS BNi-1a vs. EN 1.6554 Steel

AWS BNi-1a belongs to the nickel alloys classification, while EN 1.6554 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-1a and the bottom bar is EN 1.6554 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 70
73
Tensile Strength: Ultimate (UTS), MPa 450
780 to 930

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Melting Completion (Liquidus), °C 1080
1460
Melting Onset (Solidus), °C 980
1420
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
3.4
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 8.8
1.7
Embodied Energy, MJ/kg 120
22
Embodied Water, L/kg 240
53

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16
27 to 33
Strength to Weight: Bending, points 16
24 to 27
Thermal Shock Resistance, points 15
23 to 27

Alloy Composition


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Aluminum (Al), % 0 to 0.050
0
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0.23 to 0.28
Chromium (Cr), % 13 to 15
0.7 to 0.9
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 4.0 to 5.0
94.6 to 97.3
Manganese (Mn), % 0
0.6 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 70.6 to 76.3
1.0 to 2.0
Phosphorus (P), % 0 to 0.020
0 to 0.030
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 0.025
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0
0 to 0.030
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0