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AWS ERTi-7 vs. R05240 Alloy

AWS ERTi-7 belongs to the titanium alloys classification, while R05240 alloy belongs to the otherwise unclassified metals. There are 18 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 R05240 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
150
Elongation at Break, % 20
25
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 40
57
Tensile Strength: Ultimate (UTS), MPa 340
270
Tensile Strength: Yield (Proof), MPa 280
170

Thermal Properties

Latent Heat of Fusion, J/g 420
210
Specific Heat Capacity, J/kg-K 540
190
Thermal Expansion, µm/m-K 8.7
6.8

Otherwise Unclassified Properties

Density, g/cm3 4.5
14
Embodied Water, L/kg 470
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
59
Resilience: Unit (Modulus of Resilience), kJ/m3 360
90
Stiffness to Weight: Axial, points 13
6.3
Stiffness to Weight: Bending, points 35
13
Strength to Weight: Axial, points 21
5.4
Strength to Weight: Bending, points 24
6.8
Thermal Shock Resistance, points 26
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.010
Hydrogen (H), % 0 to 0.0080
0 to 0.0015
Iron (Fe), % 0 to 0.12
0 to 0.010
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0
35 to 42
Nitrogen (N), % 0 to 0.015
0 to 0.010
Oxygen (O), % 0.080 to 0.16
0 to 0.020
Palladium (Pd), % 0.12 to 0.25
0
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
57.9 to 65
Titanium (Ti), % 99.417 to 99.8
0 to 0.010
Tungsten (W), % 0
0 to 0.050