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Grade FDSiCr Steel vs. AWS E33-31

Both grade FDSiCr steel and AWS E33-31 are iron alloys. They have a modest 32% 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 grade FDSiCr steel and the bottom bar is AWS E33-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 80
81
Tensile Strength: Ultimate (UTS), MPa 1930
810

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
36
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.5
6.0
Embodied Energy, MJ/kg 20
86
Embodied Water, L/kg 48
260

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 69
28
Strength to Weight: Bending, points 44
24
Thermal Shock Resistance, points 58
19

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.030
Chromium (Cr), % 0.5 to 0.8
31 to 35
Copper (Cu), % 0 to 0.12
0.4 to 0.8
Iron (Fe), % 96.5 to 97.8
24.7 to 34.8
Manganese (Mn), % 0.5 to 0.9
2.5 to 4.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0
30 to 32
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 1.2 to 1.6
0 to 0.9
Sulfur (S), % 0 to 0.025
0 to 0.010