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AWS ERTi-12 vs. SAE-AISI T1 Steel

AWS ERTi-12 belongs to the titanium alloys classification, while SAE-AISI T1 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS ERTi-12 and the bottom bar is SAE-AISI T1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
80
Tensile Strength: Ultimate (UTS), MPa 480
770 to 2130

Thermal Properties

Latent Heat of Fusion, J/g 420
240
Melting Completion (Liquidus), °C 1670
1810
Melting Onset (Solidus), °C 1620
1750
Specific Heat Capacity, J/kg-K 540
410
Thermal Conductivity, W/m-K 21
20
Thermal Expansion, µm/m-K 8.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
45
Density, g/cm3 4.5
9.3
Embodied Carbon, kg CO2/kg material 31
8.2
Embodied Energy, MJ/kg 510
130
Embodied Water, L/kg 110
90

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
21
Strength to Weight: Axial, points 30
23 to 64
Strength to Weight: Bending, points 30
20 to 40
Thermal Diffusivity, mm2/s 8.7
5.2
Thermal Shock Resistance, points 37
23 to 64

Alloy Composition

Carbon (C), % 0 to 0.030
0.65 to 0.8
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.15
73.2 to 77.2
Manganese (Mn), % 0
0.1 to 0.4
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0.060 to 0.090
0 to 0.3
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.147 to 99.66
0
Tungsten (W), % 0
17.3 to 18.8
Vanadium (V), % 0
0.9 to 1.3