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Grade FDC Steel vs. AWS BNi-4

Grade FDC steel belongs to the iron alloys classification, while AWS BNi-4 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade FDC steel and the bottom bar is AWS BNi-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 80
67
Tensile Strength: Ultimate (UTS), MPa 1680
430

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Melting Completion (Liquidus), °C 1450
1070
Melting Onset (Solidus), °C 1410
980
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
60
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 1.4
10
Embodied Energy, MJ/kg 19
140
Embodied Water, L/kg 47
220

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 60
14
Strength to Weight: Bending, points 40
15
Thermal Shock Resistance, points 50
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
1.5 to 2.2
Carbon (C), % 0.6 to 0.75
0 to 0.060
Chromium (Cr), % 0 to 0.3
0
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 98 to 99.4
0 to 1.5
Manganese (Mn), % 0.5 to 1.2
0
Nickel (Ni), % 0
91.4 to 95.5
Phosphorus (P), % 0 to 0.030
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0.1 to 0.35
3.0 to 4.0
Sulfur (S), % 0 to 0.025
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5