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Grade FDC Steel vs. AWS BNi-5a

Grade FDC steel belongs to the iron alloys classification, while AWS BNi-5a 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-5a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 1680
480

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Melting Completion (Liquidus), °C 1450
1150
Melting Onset (Solidus), °C 1410
1070
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
55
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
9.0
Embodied Energy, MJ/kg 19
130
Embodied Water, L/kg 47
260

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 60
17
Strength to Weight: Bending, points 40
17
Thermal Shock Resistance, points 50
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
1.0 to 1.5
Carbon (C), % 0.6 to 0.75
0 to 0.1
Chromium (Cr), % 0 to 0.3
18.5 to 19.5
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 98 to 99.4
0 to 0.5
Manganese (Mn), % 0.5 to 1.2
0
Nickel (Ni), % 0
70.1 to 73.5
Phosphorus (P), % 0 to 0.030
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0.1 to 0.35
7.0 to 7.5
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