Titanium ERTi-24-ANN (Annealed)
Heat-treated state
ASTM B863 ERTi-24
Post-weld full anneal for maximum ductility and toughness, and the usual condition of the as-supplied spooled/cut-length wire.
Values for the ANN condition
Other ERTi-24 tempers and conditions
ERTi-24 is listed in 4 conditions; see the grade overview at ERTi-24.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AWDefault As-welded deposit | Default condition for filler-metal property reporting: all-weld-metal deposited under inert shielding with no PWHT. | 860 | 930 | 10 | 34 HRC | — |
Stress relieved | Choose to remove welding residual stress and reduce distortion/SCC risk while keeping as-welded strength. | 870 | 940 | 11 | 34 HRC | 1 % IACS |
ANNThis page Annealed | Post-weld full anneal for maximum ductility and toughness, and the usual condition of the as-supplied spooled/cut-length wire. | 880 | 950 | 13 | 33 HRC | — |
Solution treated and aged | Used only where the whole weldment is heat treated with the Grade 24 base metal for higher strength; ductility and weld-zone toughness drop. | 1,020 | 1,100 | 8 | 38 HRC | 1 % IACS |
What is ERTi-24-ANN?
ERTi-24-ANN is ERTi-24 heat treated to ANN — post-weld full anneal for maximum ductility and toughness, and the usual condition of the as-supplied spooled/cut-length wire. ERTi-24-ANN has a yield strength of 880 MPa (128 ksi) and a tensile strength of 950 MPa (138 ksi) — stronger than 78% of titanium grades. Elongation at break is 13% and the elastic modulus is 114 GPa (16.5 Msi). ERTi-24-ANN has a density of 4.43 g/cm³ (0.16 lb/in³), lighter than 89% of titanium grades. It melts at 1,604°C (2,919 °F). AW is the default condition FabDigit quotes; ANN is available on request or by drawing note.
Advantages
- High strength — 880 MPa (128 ksi), better than 78% of titanium grades
Limitations
- Poor heat conductor — 6.7 W/m·K (3.87 BTU/hr·ft·°F), worse than 92% of titanium grades
- Low electrical conductivity — 1 % IACS, worse than 89% of titanium grades
ERTi-24-ANN properties
Typical room-temperature values for ERTi-24-ANN; 11 are specific to this condition. Other listed values are ERTi-24 reference data and may not represent this condition. Bars are the position among titanium grades.
Physical3
ERTi-24-ANN has a density of 4.43 g/cm³ (0.16 lb/in³), lighter than 89% of titanium grades. It melts at 1,604°C (2,919 °F).
Mechanical16
ERTi-24-ANN has a yield strength of 880 MPa (128 ksi) and a tensile strength of 950 MPa (138 ksi) — stronger than 78% of titanium grades. Elongation at break is 13% and the elastic modulus is 114 GPa (16.5 Msi).
Thermal6
ERTi-24-ANN is rated for continuous service to 350°C (662 °F). It conducts heat at 6.7 W/m·K (3.87 BTU/hr·ft·°F), worse than 92% of titanium grades. Thermal expansion is 8.7 µm/m·K (4.83 µin/in·°F).
Electrical3
ERTi-24-ANN conducts electricity at 1 % IACS, worse than 89% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (95/100), better than 83% of titanium grades.
Sustainability4
Producing a kilogram of ERTi-24-ANN takes about 700 MJ of energy and emits 42 kg of CO₂ — more than 74% of titanium grades. Typical recycled content is 15%.
Manufacturability8
ERTi-24-ANN's machinability is poor (20/100, worse than 68% of titanium grades); weldability very good (80/100); formability poor (30/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ERTi-24-ANN
Is ERTi-24 easy to machine?
Rarely machined as wire; if the deposit is machined use rigid setups, sharp uncoated-carbide or PVD-coated tools, low surface speed (25–50 m/min) and flood coolant to avoid work hardening and titanium fire risk.
Can ERTi-24 be welded?
GTAW/GMAW/PAW with high-purity argon torch, trailing and back purge (<50 ppm O₂); keep interpass below ~150 °C, clean wire with acetone, and avoid any contamination that raises O/N/H and embrittles the bead.
Can ERTi-24 be formed, bent or molded?
Wire is supplied straightened or spooled; cold bending of the deposit is limited — bend radii ≥4t and prefer warm forming at 200–400 °C for weldment straightening.
What surface finishes work on ERTi-24?
Pickle in HNO₃/HF or use abrasive/stainless brushing to remove alpha case and heat tint before service; Type II anodizing or glass-bead peening are used for appearance and fatigue improvement.
ERTi-24 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Al | 5.5 – 6.75 | 6.2 |
| V | 3.5 – 4.5 | 4 |
| Pdcorrosion-enhancing addition | 0.04 – 0.08 | 0.06 |
| Fe | ≤ 0.22 | 0.15 |
| Olower than base-metal limit for weld ductility | ≤ 0.12 | 0.1 |
| C | ≤ 0.05 | 0.02 |
| N | ≤ 0.02 | 0.01 |
| H | ≤ 0.01 | 0 |
| Other, eachresidual elements | ≤ 0.1 | — |
| Other, totalresidual elements | ≤ 0.4 | — |
| Ti | balance | — |
ERTi-24-ANN — frequently asked
What is ERTi-24-ANN used for?
ERTi-24-ANN is typically used for chemical process equipment welding, marine and offshore titanium fabrication and high-strength corrosion-resistant weldments. In short: pd-modified Ti-6Al-4V filler; strength plus acid resistance; matches Grade 24 base metal.
What is the yield strength of ERTi-24-ANN?
ERTi-24-ANN has a typical yield strength of 880 MPa (128 ksi) and a tensile strength of 950 MPa (138 ksi) — stronger than 78% of titanium grades. Strength varies by condition: see the 4 listed tempers.
Is ERTi-24-ANN easy to machine?
Not especially — machinability is rated poor (20/100, worse than 68% of titanium grades). Rarely machined as wire; if the deposit is machined use rigid setups, sharp uncoated-carbide or PVD-coated tools, low surface speed (25–50 m/min) and flood coolant to avoid work hardening and titanium fire risk.
Can ERTi-24-ANN be welded?
Yes — weldability is rated very good (80/100). GTAW/GMAW/PAW with high-purity argon torch, trailing and back purge (<50 ppm O₂); keep interpass below ~150 °C, clean wire with acetone, and avoid any contamination that raises O/N/H and embrittles the bead.
What surface finishes work on ERTi-24-ANN?
Pickle in HNO₃/HF or use abrasive/stainless brushing to remove alpha case and heat tint before service; Type II anodizing or glass-bead peening are used for appearance and fatigue improvement.
Can ERTi-24-ANN be formed, bent or molded?
Wire is supplied straightened or spooled; cold bending of the deposit is limited — bend radii ≥4t and prefer warm forming at 200–400 °C for weldment straightening.
What is the maximum service temperature of ERTi-24-ANN?
ERTi-24-ANN is rated for continuous use to about 350°C (662 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ERTi-24-AW and ERTi-24-STA?
AW is the default condition — default condition for filler-metal property reporting: all-weld-metal deposited under inert shielding with no PWHT. STA: used only where the whole weldment is heat treated with the Grade 24 base metal for higher strength; ductility and weld-zone toughness drop. Yield strength is 860 MPa in AW versus 1,020 MPa in STA.
Sources
- AWS A5.16/A5.16M — Titanium and Titanium-Alloy Welding Electrodes and Rods — AWS (2013)
- ASTM B863 — Titanium and Titanium Alloy Wire — ASTM (2021)
- ASTM B265 / B348 — Titanium Grade 24 base metal chemistry and properties — ASTM (2020)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.6 — Welding, Brazing and Soldering (titanium weldments) — ASM International (1993)
- AWS D1.9/D1.9M — Structural Welding Code, Titanium — AWS (2015)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.