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AWS ERTi-5 vs. EN 1.7378 Steel

AWS ERTi-5 belongs to the titanium alloys classification, while EN 1.7378 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-5 and the bottom bar is EN 1.7378 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 10
17
Fatigue Strength, MPa 470
330
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
74
Tensile Strength: Ultimate (UTS), MPa 900
700
Tensile Strength: Yield (Proof), MPa 830
490

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Maximum Temperature: Mechanical, °C 340
460
Melting Completion (Liquidus), °C 1610
1470
Melting Onset (Solidus), °C 1560
1430
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
39
Thermal Expansion, µm/m-K 9.6
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
4.0
Density, g/cm3 4.4
7.8
Embodied Carbon, kg CO2/kg material 38
2.3
Embodied Energy, MJ/kg 610
33
Embodied Water, L/kg 200
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3250
630
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 56
25
Strength to Weight: Bending, points 46
22
Thermal Diffusivity, mm2/s 2.9
10
Thermal Shock Resistance, points 63
20

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 0 to 0.050
0.050 to 0.1
Chromium (Cr), % 0
2.2 to 2.6
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.22
94.6 to 96.1
Manganese (Mn), % 0
0.3 to 0.7
Molybdenum (Mo), % 0
0.9 to 1.1
Nitrogen (N), % 0 to 0.030
0 to 0.010
Oxygen (O), % 0.12 to 0.2
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0.15 to 0.45
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 88.2 to 90.9
0.050 to 0.1
Vanadium (V), % 3.5 to 4.5
0.2 to 0.3