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AWS ERTi-5 vs. SAE-AISI 5155 Steel

AWS ERTi-5 belongs to the titanium alloys classification, while SAE-AISI 5155 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 5155 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 10
21
Fatigue Strength, MPa 470
260
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 900
620
Tensile Strength: Yield (Proof), MPa 830
380

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 340
420
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1560
1410
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
49
Thermal Expansion, µm/m-K 9.6
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.1
Density, g/cm3 4.4
7.8
Embodied Carbon, kg CO2/kg material 38
1.4
Embodied Energy, MJ/kg 610
19
Embodied Water, L/kg 200
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3250
380
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 56
22
Strength to Weight: Bending, points 46
21
Thermal Diffusivity, mm2/s 2.9
13
Thermal Shock Resistance, points 63
20

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.050
0.51 to 0.59
Chromium (Cr), % 0
0.7 to 0.9
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.22
97.2 to 97.9
Manganese (Mn), % 0
0.7 to 0.9
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0.12 to 0.2
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 88.2 to 90.9
0
Vanadium (V), % 3.5 to 4.5
0