AWS ERTi-5 vs. Grade 702C Zirconium

AWS ERTi-5 belongs to the titanium alloys classification, while grade 702C zirconium belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-5 and the bottom bar is grade 702C zirconium.

AWS ERTi-5 Weld Metal Grade 702C Cast Zirconium

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		97

Elongation at Break, %		10
Elongation at Break, %		13

Poisson's Ratio		0.32
Poisson's Ratio		0.34

Shear Modulus, GPa		40
Shear Modulus, GPa		36

Tensile Strength: Ultimate (UTS), MPa		900
Tensile Strength: Ultimate (UTS), MPa		430

Tensile Strength: Yield (Proof), MPa		830
Tensile Strength: Yield (Proof), MPa		310

Thermal Properties

Latent Heat of Fusion, J/g		410
Latent Heat of Fusion, J/g		250

Specific Heat Capacity, J/kg-K		560
Specific Heat Capacity, J/kg-K		270

Thermal Conductivity, W/m-K		7.1
Thermal Conductivity, W/m-K		22

Thermal Expansion, µm/m-K		9.6
Thermal Expansion, µm/m-K		5.7

Otherwise Unclassified Properties

Density, g/cm³		4.4
Density, g/cm³		6.7

Embodied Water, L/kg		200
Embodied Water, L/kg		450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		87
Resilience: Ultimate (Unit Rupture Work), MJ/m³		52

Resilience: Unit (Modulus of Resilience), kJ/m³		3250
Resilience: Unit (Modulus of Resilience), kJ/m³		510

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		8.1

Stiffness to Weight: Bending, points		35
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		56
Strength to Weight: Axial, points		18

Strength to Weight: Bending, points		46
Strength to Weight: Bending, points		19

Thermal Diffusivity, mm²/s		2.9
Thermal Diffusivity, mm²/s		12

Thermal Shock Resistance, points		63
Thermal Shock Resistance, points		55

Alloy Composition

Aluminum (Al), %		5.5 to 6.8
Aluminum (Al), %		0

Carbon (C), %		0 to 0.050
Carbon (C), %		0 to 0.1

Hafnium (Hf), %		0
Hafnium (Hf), %		0 to 4.5

Hydrogen (H), %		0 to 0.015
Hydrogen (H), %		0 to 0.0050

Iron (Fe), %		0 to 0.22
Iron (Fe), %		0 to 0.3

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

Oxygen (O), %		0.12 to 0.2
Oxygen (O), %		0 to 0.25

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.010

Titanium (Ti), %		88.2 to 90.9
Titanium (Ti), %		0

Vanadium (V), %		3.5 to 4.5
Vanadium (V), %		0

Zirconium (Zr), %		0
Zirconium (Zr), %		94.8 to 100