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AWS E320 vs. Grade FDSiCr Steel

Both AWS E320 and grade FDSiCr steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E320 and the bottom bar is grade FDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 620
1930

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 38
2.2
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 6.5
1.5
Embodied Energy, MJ/kg 91
20
Embodied Water, L/kg 220
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
69
Strength to Weight: Bending, points 20
44
Thermal Shock Resistance, points 16
58

Alloy Composition

Carbon (C), % 0 to 0.070
0.5 to 0.6
Chromium (Cr), % 19 to 21
0.5 to 0.8
Copper (Cu), % 3.0 to 4.0
0 to 0.12
Iron (Fe), % 31.8 to 43.5
96.5 to 97.8
Manganese (Mn), % 0.5 to 2.5
0.5 to 0.9
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 32 to 36
0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.6
1.2 to 1.6
Sulfur (S), % 0 to 0.030
0 to 0.025