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AWS ERTi-5 Weld Metal

AWS ERTi-5 is a titanium-based filler metal for welding. Cited properties are appropriate for the as-welded condition. It has a fairly low density among titanium alloys. In addition, it has a moderately high heat capacity and a moderately low ductility.

The graph bars on the material properties cards below compare AWS ERTi-5 to: titanium welding fillers (top), all titanium alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

110 GPa 15 x 106 psi

Elongation at Break

10 %

Fatigue Strength

470 MPa 69 x 103 psi

Poisson's Ratio

0.32

Shear Modulus

40 GPa 5.8 x 106 psi

Tensile Strength: Ultimate (UTS)

900 MPa 130 x 103 psi

Tensile Strength: Yield (Proof)

830 MPa 120 x 103 psi

Thermal Properties

Latent Heat of Fusion

410 J/g

Maximum Temperature: Mechanical

340 °C 640 °F

Melting Completion (Liquidus)

1610 °C 2930 °F

Melting Onset (Solidus)

1560 °C 2840 °F

Specific Heat Capacity

560 J/kg-K 0.13 BTU/lb-°F

Thermal Conductivity

7.1 W/m-K 4.1 BTU/h-ft-°F

Thermal Expansion

9.6 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

1.0 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.0 % IACS

Otherwise Unclassified Properties

Base Metal Price

36 % relative

Density

4.4 g/cm3 280 lb/ft3

Embodied Carbon

38 kg CO2/kg material

Embodied Energy

610 MJ/kg 260 x 103 BTU/lb

Embodied Water

200 L/kg 24 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

87 MJ/m3

Resilience: Unit (Modulus of Resilience)

3250 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

35 points

Strength to Weight: Axial

56 points

Strength to Weight: Bending

46 points

Thermal Diffusivity

2.9 mm2/s

Thermal Shock Resistance

63 points

Alloy Composition

Titanium (Ti) 88.2 to 90.9
Aluminum (Al) 5.5 to 6.8
Vanadium (V) 3.5 to 4.5
Oxygen (O) 0.12 to 0.2
Iron (Fe) 0 to 0.22
Carbon (C) 0 to 0.050
Nitrogen (N) 0 to 0.030
Hydrogen (H) 0 to 0.015

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

AWS A5.16: Specification for Titanium and Titanium-Alloy Welding Electrodes and Rods