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AWS ERTi-1 vs. SAE-AISI O1 Steel

AWS ERTi-1 belongs to the titanium alloys classification, while SAE-AISI O1 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-1 and the bottom bar is SAE-AISI O1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
72
Tensile Strength: Ultimate (UTS), MPa 240
640 to 2060

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Melting Completion (Liquidus), °C 1670
1460
Melting Onset (Solidus), °C 1620
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
43
Thermal Expansion, µm/m-K 8.7
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 37
3.4
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.9
Embodied Energy, MJ/kg 510
27
Embodied Water, L/kg 110
51

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 15
23 to 73
Strength to Weight: Bending, points 19
21 to 46
Thermal Diffusivity, mm2/s 8.7
12
Thermal Shock Resistance, points 19
21 to 68

Alloy Composition

Carbon (C), % 0 to 0.030
0.85 to 1.0
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
95 to 97.4
Manganese (Mn), % 0
1.0 to 1.4
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0.030 to 0.1
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.773 to 99.97
0
Tungsten (W), % 0
0.4 to 0.6
Vanadium (V), % 0
0 to 0.3