Titanium Ti-13V-11Cr-3Al-CWA (Cold worked and aged)
Precip hard
UNS R58010 · also 4917, 4959
Highest strength condition, used for springs, fasteners and thin high-load skins where low ductility and toughness are acceptable.
Values for the CWA condition
Other Ti-13V-11Cr-3Al tempers and conditions
Ti-13V-11Cr-3Al is listed in 4 conditions; see the grade overview at Ti-13V-11Cr-3Al.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
STDefault Solution annealed | Softest, most formable single-phase beta condition — the state sheet, plate and wire are supplied in for forming, welding and subsequent aging. | 860 | 930 | 16 | 31 HRC | — |
Cold worked | Use when strength must be raised without a thermal cycle — the beta matrix work-hardens heavily and stays ductile enough to form springs and fasteners blanks. | 1,080 | 1,130 | 7 | 36 HRC | 1.2 % IACS |
Solution treated and aged | Pick after forming/welding when 1200 MPa-class strength is required; aging is done on the finished part because ductility drops sharply. | 1,170 | 1,220 | 8 | 40 HRC | — |
CWAThis page Cold worked and aged | Highest strength condition, used for springs, fasteners and thin high-load skins where low ductility and toughness are acceptable. | 1,330 | 1,400 | 4 | 44 HRC | — |
What is Ti-13V-11Cr-3Al-CWA?
Ti-13V-11Cr-3Al-CWA is Ti-13V-11Cr-3Al in the CWA condition — highest strength condition, used for springs, fasteners and thin high-load skins where low ductility and toughness are acceptable. Ti-13V-11Cr-3Al-CWA has a yield strength of 1,330 MPa (193 ksi) and a tensile strength of 1,400 MPa (203 ksi) — stronger than 101% of titanium grades. Elongation at break is 4% and the elastic modulus is 115 GPa (16.7 Msi). Ti-13V-11Cr-3Al-CWA has a density of 4.87 g/cm³ (0.176 lb/in³), heavier than 95% of titanium grades. It melts at 1,427°C (2,601 °F). ST is the default condition FabDigit quotes; CWA is available on request or by drawing note.
Advantages
- High strength — 1,330 MPa (193 ksi), better than 101% of titanium grades
Limitations
- Limited ductility — 4%, worse than 100% of titanium grades
- Difficult to machine — 10/100, worse than 100% of titanium grades
- Difficult to weld — 25/100, worse than 100% of titanium grades
- Low fracture toughness — 35 MPa·√m (31.9 ksi·√in), worse than 99% of titanium grades
- Limited formability — 10/100, worse than 99% of titanium grades
Ti-13V-11Cr-3Al-CWA properties
Typical room-temperature values for Ti-13V-11Cr-3Al-CWA; 13 are specific to this condition. Other listed values are Ti-13V-11Cr-3Al reference data and may not represent this condition. Bars are the position among titanium grades.
Physical3
Ti-13V-11Cr-3Al-CWA has a density of 4.87 g/cm³ (0.176 lb/in³), heavier than 95% of titanium grades. It melts at 1,427°C (2,601 °F).
Mechanical16
Ti-13V-11Cr-3Al-CWA has a yield strength of 1,330 MPa (193 ksi) and a tensile strength of 1,400 MPa (203 ksi) — stronger than 101% of titanium grades. Elongation at break is 4% and the elastic modulus is 115 GPa (16.7 Msi).
Thermal6
Ti-13V-11Cr-3Al-CWA is rated for continuous service to 315°C (599 °F). It conducts heat at 7.8 W/m·K (4.51 BTU/hr·ft·°F), worse than 53% of titanium grades. Thermal expansion is 9 µm/m·K (5 µin/in·°F).
Electrical3
Ti-13V-11Cr-3Al-CWA conducts electricity at 1.2 % IACS, worse than 55% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (88/100), worse than 77% of titanium grades.
Sustainability4
Producing a kilogram of Ti-13V-11Cr-3Al-CWA takes about 650 MJ of energy and emits 45 kg of CO₂ — less than 75% of titanium grades. Typical recycled content is 25%.
Manufacturability8
Ti-13V-11Cr-3Al-CWA's machinability is not recommended (10/100, worse than 100% of titanium grades); weldability poor (25/100); formability not recommended (10/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Ti-13V-11Cr-3Al-CWA
Is Ti-13V-11Cr-3Al easy to machine?
Machine like a hard beta titanium: rigid setups, sharp uncoated-carbide or PVD-coated tools, 15–30 m/min surface speed, heavy flood coolant, positive feed to avoid work hardening; machine before aging where possible.
Can Ti-13V-11Cr-3Al be welded?
GTAW, plasma or EBW under high-purity argon/vacuum with full backside shielding gives ductile single-phase beta welds; post-weld aging strengthens but embrittles the HAZ, so weld in ST condition and age the assembly.
Can Ti-13V-11Cr-3Al be formed, bent or molded?
In the ST condition it cold-forms and roll-forms nearly like austenitic stainless (allow generous springback and 3–4 t bend radii); after aging it is essentially non-formable.
What surface finishes work on Ti-13V-11Cr-3Al?
Descale by molten-salt/HNO₃-HF pickling (control hydrogen pickup), then optional titanium anodize or chemical conversion; hard-facing or ion nitriding is needed for galling contact surfaces.
Ti-13V-11Cr-3Al 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 |
|---|---|---|
| Vbeta stabilizer | 12.5 – 14.5 | 13 |
| Crbeta stabilizer; TiCr₂ segregation risk | 10 – 12 | 11 |
| Alalpha stabilizer / aging response | 2.5 – 3.5 | 3 |
| Fe | ≤ 0.35 | — |
| O | ≤ 0.17 | — |
| C | ≤ 0.05 | — |
| N | ≤ 0.05 | — |
| H0.015 max for sheet in some specs | ≤ 0.03 | — |
| Other, each | ≤ 0.1 | — |
| Other, total | ≤ 0.4 | — |
| Ti | balance | — |
Ti-13V-11Cr-3Al-CWA — frequently asked
What is Ti-13V-11Cr-3Al-CWA used for?
Ti-13V-11Cr-3Al-CWA is typically used for airframe skins, high-temperature structural sheet and historic supersonic aircraft parts. In short: first production beta titanium; cold-forms then age hardens; 260 °C service capability.
What is the yield strength of Ti-13V-11Cr-3Al-CWA?
Ti-13V-11Cr-3Al-CWA has a typical yield strength of 1,330 MPa (193 ksi) and a tensile strength of 1,400 MPa (203 ksi) — stronger than 101% of titanium grades. Strength varies by condition: see the 4 listed tempers.
Is Ti-13V-11Cr-3Al-CWA easy to machine?
Not especially — machinability is rated not recommended (10/100, worse than 100% of titanium grades). Machine like a hard beta titanium: rigid setups, sharp uncoated-carbide or PVD-coated tools, 15–30 m/min surface speed, heavy flood coolant, positive feed to avoid work hardening; machine before aging where possible.
Can Ti-13V-11Cr-3Al-CWA be welded?
Not readily — weldability is rated poor (25/100). GTAW, plasma or EBW under high-purity argon/vacuum with full backside shielding gives ductile single-phase beta welds; post-weld aging strengthens but embrittles the HAZ, so weld in ST condition and age the assembly.
What surface finishes work on Ti-13V-11Cr-3Al-CWA?
Descale by molten-salt/HNO₃-HF pickling (control hydrogen pickup), then optional titanium anodize or chemical conversion; hard-facing or ion nitriding is needed for galling contact surfaces.
Can Ti-13V-11Cr-3Al-CWA be formed, bent or molded?
In the ST condition it cold-forms and roll-forms nearly like austenitic stainless (allow generous springback and 3–4 t bend radii); after aging it is essentially non-formable.
What is the maximum service temperature of Ti-13V-11Cr-3Al-CWA?
Ti-13V-11Cr-3Al-CWA is rated for continuous use to about 315°C (599 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Ti-13V-11Cr-3Al-ST and Ti-13V-11Cr-3Al-CWA?
ST is the default condition — softest, most formable single-phase beta condition — the state sheet, plate and wire are supplied in for forming, welding and subsequent aging. CWA: highest strength condition, used for springs, fasteners and thin high-load skins where low ductility and toughness are acceptable. Yield strength is 860 MPa in ST versus 1,330 MPa in CWA.
Sources
- AMS 4917 — Titanium Alloy Sheet, Strip and Plate, 13V-11Cr-3Al, Solution Heat Treated — SAE International (2018)
- AMS 4959 — Titanium Alloy Welding Wire/Bar, 13V-11Cr-3Al — SAE International (2016)
- Materials Properties Handbook: Titanium Alloys — ASM International (1994)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Handbook Vol. 13B — Corrosion: Materials — ASM International (2005)
- MMPDS-17 (titanium alloy chapters, typical vs design values) — Battelle/FAA (2022)
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.