AWS ERTi-2 vs. Grade 20 Titanium

Both AWS ERTi-2 and grade 20 titanium are titanium alloys. They have 74% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-2 and the bottom bar is grade 20 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		120

Elongation at Break, %		20
Elongation at Break, %		5.7 to 17

Fatigue Strength, MPa		190
Fatigue Strength, MPa		550 to 630

Poisson's Ratio		0.32
Poisson's Ratio		0.32

Shear Modulus, GPa		40
Shear Modulus, GPa		47

Tensile Strength: Ultimate (UTS), MPa		340
Tensile Strength: Ultimate (UTS), MPa		900 to 1270

Tensile Strength: Yield (Proof), MPa		280
Tensile Strength: Yield (Proof), MPa		850 to 1190

Thermal Properties

Latent Heat of Fusion, J/g		420
Latent Heat of Fusion, J/g		400

Maximum Temperature: Mechanical, °C		320
Maximum Temperature: Mechanical, °C		370

Melting Completion (Liquidus), °C		1670
Melting Completion (Liquidus), °C		1660

Melting Onset (Solidus), °C		1620
Melting Onset (Solidus), °C		1600

Specific Heat Capacity, J/kg-K		540
Specific Heat Capacity, J/kg-K		520

Thermal Expansion, µm/m-K		8.7
Thermal Expansion, µm/m-K		9.6

Otherwise Unclassified Properties

Density, g/cm³		4.5
Density, g/cm³		5.0

Embodied Carbon, kg CO₂/kg material		31
Embodied Carbon, kg CO₂/kg material		52

Embodied Energy, MJ/kg		510
Embodied Energy, MJ/kg		860

Embodied Water, L/kg		110
Embodied Water, L/kg		350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		64
Resilience: Ultimate (Unit Rupture Work), MJ/m³		71 to 150

Resilience: Unit (Modulus of Resilience), kJ/m³		360
Resilience: Unit (Modulus of Resilience), kJ/m³		2940 to 5760

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		35
Stiffness to Weight: Bending, points		33

Strength to Weight: Axial, points		21
Strength to Weight: Axial, points		50 to 70

Strength to Weight: Bending, points		24
Strength to Weight: Bending, points		41 to 52

Thermal Shock Resistance, points		27
Thermal Shock Resistance, points		55 to 77

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		3.0 to 4.0

Carbon (C), %		0 to 0.030
Carbon (C), %		0 to 0.050

Chromium (Cr), %		0
Chromium (Cr), %		5.5 to 6.5

Hydrogen (H), %		0 to 0.0080
Hydrogen (H), %		0 to 0.020

Iron (Fe), %		0 to 0.12
Iron (Fe), %		0 to 0.3

Molybdenum (Mo), %		0
Molybdenum (Mo), %		3.5 to 4.5

Nitrogen (N), %		0 to 0.015
Nitrogen (N), %		0 to 0.030

Oxygen (O), %		0.080 to 0.16
Oxygen (O), %		0 to 0.12

Palladium (Pd), %		0
Palladium (Pd), %		0.040 to 0.080

Titanium (Ti), %		99.667 to 99.92
Titanium (Ti), %		71 to 77

Vanadium (V), %		0
Vanadium (V), %		7.5 to 8.5

Zirconium (Zr), %		0
Zirconium (Zr), %		3.5 to 4.5

Residuals, %		0
Residuals, %		0 to 0.4