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AWS ERTi-7 vs. SAE-AISI T6 Steel

AWS ERTi-7 belongs to the titanium alloys classification, while SAE-AISI T6 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, 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-7 and the bottom bar is SAE-AISI T6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
81
Tensile Strength: Ultimate (UTS), MPa 340
880 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Melting Completion (Liquidus), °C 1670
1830
Melting Onset (Solidus), °C 1620
1770
Specific Heat Capacity, J/kg-K 540
400
Thermal Conductivity, W/m-K 21
18
Thermal Expansion, µm/m-K 8.7
12

Otherwise Unclassified Properties

Density, g/cm3 4.5
9.5
Embodied Carbon, kg CO2/kg material 47
11
Embodied Energy, MJ/kg 800
170
Embodied Water, L/kg 470
160

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
21
Strength to Weight: Axial, points 21
26 to 63
Strength to Weight: Bending, points 24
21 to 39
Thermal Diffusivity, mm2/s 8.8
4.7
Thermal Shock Resistance, points 26
26 to 64

Alloy Composition

Carbon (C), % 0 to 0.030
0.75 to 0.85
Chromium (Cr), % 0
4.0 to 4.8
Cobalt (Co), % 0
11 to 13
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
55.9 to 63.5
Manganese (Mn), % 0
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 1.0
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Palladium (Pd), % 0.12 to 0.25
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), % 99.417 to 99.8
0
Tungsten (W), % 0
18.5 to 21
Vanadium (V), % 0
1.5 to 2.1