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AWS ERTi-7 vs. SAE-AISI T15 Steel

AWS ERTi-7 belongs to the titanium alloys classification, while SAE-AISI T15 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.

For each property being compared, the top bar is AWS ERTi-7 and the bottom bar is SAE-AISI T15 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 40
76
Tensile Strength: Ultimate (UTS), MPa 340
830 to 2240

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Melting Completion (Liquidus), °C 1670
1690
Melting Onset (Solidus), °C 1620
1640
Specific Heat Capacity, J/kg-K 540
430
Thermal Conductivity, W/m-K 21
21
Thermal Expansion, µm/m-K 8.7
12

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.7
Embodied Carbon, kg CO2/kg material 47
16
Embodied Energy, MJ/kg 800
250
Embodied Water, L/kg 470
140

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
22
Strength to Weight: Axial, points 21
26 to 71
Strength to Weight: Bending, points 24
22 to 43
Thermal Diffusivity, mm2/s 8.8
5.6
Thermal Shock Resistance, points 26
26 to 70

Alloy Composition

Carbon (C), % 0 to 0.030
1.5 to 1.6
Chromium (Cr), % 0
3.8 to 5.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
67.5 to 73.5
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
0 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
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.417 to 99.8
0
Tungsten (W), % 0
11.8 to 13
Vanadium (V), % 0
4.5 to 5.3