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Grade FDSiCr Steel vs. AWS ERTi-1

Grade FDSiCr steel belongs to the iron alloys classification, while AWS ERTi-1 belongs to the titanium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade FDSiCr steel and the bottom bar is AWS ERTi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 80
41
Tensile Strength: Ultimate (UTS), MPa 1930
240

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Maximum Temperature: Mechanical, °C 410
320
Melting Completion (Liquidus), °C 1440
1670
Melting Onset (Solidus), °C 1400
1620
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 48
21
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 1.5
31
Embodied Energy, MJ/kg 20
510
Embodied Water, L/kg 48
110

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 69
15
Strength to Weight: Bending, points 44
19
Thermal Diffusivity, mm2/s 13
8.7
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
0
Copper (Cu), % 0 to 0.12
0
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 96.5 to 97.8
0 to 0.080
Manganese (Mn), % 0.5 to 0.9
0
Nitrogen (N), % 0
0 to 0.012
Oxygen (O), % 0
0.030 to 0.1
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.2 to 1.6
0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
99.773 to 99.97