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AWS ERTi-12 vs. SAE-AISI 1090 Steel

AWS ERTi-12 belongs to the titanium alloys classification, while SAE-AISI 1090 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-12 and the bottom bar is SAE-AISI 1090 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 12
11
Fatigue Strength, MPa 200
320 to 380
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
72
Tensile Strength: Ultimate (UTS), MPa 480
790 to 950
Tensile Strength: Yield (Proof), MPa 340
520 to 610

Thermal Properties

Latent Heat of Fusion, J/g 420
240
Maximum Temperature: Mechanical, °C 320
400
Melting Completion (Liquidus), °C 1670
1450
Melting Onset (Solidus), °C 1620
1410
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
50
Thermal Expansion, µm/m-K 8.7
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.8
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.4
Embodied Energy, MJ/kg 510
19
Embodied Water, L/kg 110
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
82 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 550
730 to 1000
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 30
28 to 34
Strength to Weight: Bending, points 30
24 to 27
Thermal Diffusivity, mm2/s 8.7
13
Thermal Shock Resistance, points 37
25 to 31

Alloy Composition

Carbon (C), % 0 to 0.030
0.85 to 1.0
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.15
98 to 98.6
Manganese (Mn), % 0
0.6 to 0.9
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0.060 to 0.090
0
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.040
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 99.147 to 99.66
0