Titanium Grade 11-AW (As-welded deposit)
Heat-treated state
ASTM Grade 11 · UNS R52250
Property set for welded tube (ASTM B338/B337) and autogenous joints; weld slightly stronger, less ductile than base.
Values for the AW condition
Other Grade 11 tempers and conditions
Grade 11 is listed in 4 conditions; see the grade overview at Grade 11.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefault mill annealed sheet, plate, bar and tube | Standard stocked condition for all product forms; maximum ductility and corrosion performance. | 220 | 330 | 30 | 120 HB | — |
Forged and annealed (flanges, fittings, valve bodies) | Near-net forged corrosion hardware per ASTM B381 F11, annealed after forging. | 225 | 335 | 28 | 125 HB | 3.5 % IACS |
AWThis page As-welded deposit | Property set for welded tube (ASTM B338/B337) and autogenous joints; weld slightly stronger, less ductile than base. | 240 | 345 | 22 | 135 HB | 3.5 % IACS |
Cold worked + stress relieved | Choose when higher strength and straightness are needed and forming is already complete. | 370 | 450 | 18 | 160 HB | 3.4 % IACS |
What is Grade 11-AW?
Grade 11-AW is Grade 11 heat treated to AW — property set for welded tube (ASTM B338/B337) and autogenous joints; weld slightly stronger, less ductile than base. Grade 11-AW has a yield strength of 240 MPa (34.8 ksi) and a tensile strength of 345 MPa (50 ksi) — weaker than 90% of titanium grades. Elongation at break is 22% and the elastic modulus is 103 GPa (14.9 Msi). Grade 11-AW has a density of 4.51 g/cm³ (0.163 lb/in³), heavier than 57% of titanium grades. It melts at 1,660°C (3,020 °F). Annealed is the default condition FabDigit quotes; AW is available on request or by drawing note.
Advantages
- High electrical conductivity — 3.5 % IACS, better than 97% of titanium grades
- Easy to machine — 40/100, better than 93% of titanium grades
- Conducts heat well — 16.5 W/m·K (9.53 BTU/hr·ft·°F), better than 80% of titanium grades
Limitations
- Low strength — 240 MPa (34.8 ksi), worse than 90% of titanium grades
Grade 11-AW properties
Typical room-temperature values for Grade 11-AW; 22 are specific to this condition. Other listed values are Grade 11 reference data and may not represent this condition. Bars are the position among titanium grades.
Physical3
Grade 11-AW has a density of 4.51 g/cm³ (0.163 lb/in³), heavier than 57% of titanium grades. It melts at 1,660°C (3,020 °F).
Mechanical16
Grade 11-AW has a yield strength of 240 MPa (34.8 ksi) and a tensile strength of 345 MPa (50 ksi) — weaker than 90% of titanium grades. Elongation at break is 22% and the elastic modulus is 103 GPa (14.9 Msi).
Thermal6
Grade 11-AW is rated for continuous service to 300°C (572 °F). It conducts heat at 16.5 W/m·K (9.53 BTU/hr·ft·°F), better than 80% of titanium grades. Thermal expansion is 8.6 µm/m·K (4.78 µin/in·°F).
Electrical3
Grade 11-AW conducts electricity at 3.5 % IACS, better than 97% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (94/100), better than 80% of titanium grades.
Sustainability4
Producing a kilogram of Grade 11-AW takes about 700 MJ of energy and emits 40 kg of CO₂ — more than 74% of titanium grades. Typical recycled content is 20%.
Manufacturability7
Grade 11-AW's machinability is fair (40/100, better than 93% of titanium grades); weldability excellent (88/100); formability good (60/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Grade 11-AW
Is Grade 11 easy to machine?
Machine like CP titanium: sharp, positive-rake carbide, low speed (20–45 m/min), heavy rigid feed, flood coolant; avoid dwelling to prevent work hardening and smearing.
Can Grade 11 be welded?
Excellent GTAW/plasma/EB weldability with matching Gr11 or Gr1 filler, provided full argon shielding of the puddle, trailing shield and back purge to below ~430 °C; no post-weld heat treatment normally required.
Can Grade 11 be formed, bent or molded?
Best cold formability of the CP grades — deep drawing, spinning and tight bend radii (about 2–3 t) are practical; allow for springback and warm form at 150–300 °C for severe shapes.
What surface finishes work on Grade 11?
Pickle in HNO3/HF to remove alpha case and iron pick-up, then passivate or colour-anodize; avoid steel tooling contamination and never use chlorinated or fluoride-bearing cleaners.
Grade 11 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 |
|---|---|---|
| Pdpalladium addition that stabilises the passive film | 0.12 – 0.25 | 0.15 |
| Olow-oxygen (Grade 1 base) for maximum ductility | ≤ 0.18 | 0.1 |
| Fe | ≤ 0.2 | 0.08 |
| C | ≤ 0.08 | 0.02 |
| N | ≤ 0.03 | 0.01 |
| H0.0125 % max for bar/billet per ASTM B348 | ≤ 0.02 | 0 |
| Residuals, eachtotal residuals 0.4 % max | ≤ 0.1 | — |
| Ti | balance | — |
Grade 11-AW — frequently asked
What is Grade 11-AW used for?
Grade 11-AW is typically used for deep-drawn corrosion-resistant vessels, chemical process piping and anode substrates. In short: most formable CP titanium; palladium crevice resistance; lowest strength CP grade.
What is the yield strength of Grade 11-AW?
Grade 11-AW has a typical yield strength of 240 MPa (34.8 ksi) and a tensile strength of 345 MPa (50 ksi) — weaker than 90% of titanium grades. Strength varies by condition: see the 4 listed tempers.
Is Grade 11-AW easy to machine?
Not especially — machinability is rated fair (40/100, better than 93% of titanium grades). Machine like CP titanium: sharp, positive-rake carbide, low speed (20–45 m/min), heavy rigid feed, flood coolant; avoid dwelling to prevent work hardening and smearing.
Can Grade 11-AW be welded?
Yes — weldability is rated excellent (88/100). Excellent GTAW/plasma/EB weldability with matching Gr11 or Gr1 filler, provided full argon shielding of the puddle, trailing shield and back purge to below ~430 °C; no post-weld heat treatment normally required.
What surface finishes work on Grade 11-AW?
Pickle in HNO3/HF to remove alpha case and iron pick-up, then passivate or colour-anodize; avoid steel tooling contamination and never use chlorinated or fluoride-bearing cleaners.
Can Grade 11-AW be formed, bent or molded?
Best cold formability of the CP grades — deep drawing, spinning and tight bend radii (about 2–3 t) are practical; allow for springback and warm form at 150–300 °C for severe shapes.
What is the maximum service temperature of Grade 11-AW?
Grade 11-AW is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Grade 11 Annealed and Grade 11 CW-SR?
Annealed is the default condition — standard stocked condition for all product forms; maximum ductility and corrosion performance. CW-SR: choose when higher strength and straightness are needed and forming is already complete. Yield strength is 220 MPa in Annealed versus 370 MPa in CW-SR.
Sources
- ASTM B265 — Titanium and Titanium Alloy Strip, Sheet, and Plate — ASTM International (2020)
- ASTM B348 — Titanium and Titanium Alloy Bars and Billets — ASTM International (2021)
- ASTM B338/B337 — Titanium Tube for Condensers and Heat Exchangers — ASTM International (2019)
- ASTM B381 — Titanium and Titanium Alloy Forgings — ASTM International (2019)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- Ti-Pd corrosion-resistant grade datasheets (Gr7/Gr11) — titanium mill producers (2023)
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.