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AWS ERTi-5 vs. SAE-AISI 1108 Steel

AWS ERTi-5 belongs to the titanium alloys classification, while SAE-AISI 1108 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-5 and the bottom bar is SAE-AISI 1108 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 10
23 to 34
Fatigue Strength, MPa 470
170 to 260
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 900
380 to 440
Tensile Strength: Yield (Proof), MPa 830
220 to 360

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 340
400
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1560
1420
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
52
Thermal Expansion, µm/m-K 9.6
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 36
1.8
Density, g/cm3 4.4
7.9
Embodied Carbon, kg CO2/kg material 38
1.4
Embodied Energy, MJ/kg 610
18
Embodied Water, L/kg 200
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
95 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 3250
130 to 340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 56
13 to 16
Strength to Weight: Bending, points 46
15 to 16
Thermal Diffusivity, mm2/s 2.9
14
Thermal Shock Resistance, points 63
12 to 14

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.050
0.080 to 0.13
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.22
98.9 to 99.24
Manganese (Mn), % 0
0.6 to 0.8
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0.12 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Sulfur (S), % 0
0.080 to 0.13
Titanium (Ti), % 88.2 to 90.9
0
Vanadium (V), % 3.5 to 4.5
0