Titanium ERTi-11 PWHT
Heat-treated state
ASTM B863 ERTi-11
PWHT = post-weld heat treated
Choose when residual stress must be lowered for dimensional stability or stress-corrosion-sensitive service; strength is essentially unchanged, ductility slightly improved.
Values for the PWHT condition
Other ERTi-11 tempers and conditions
ERTi-11 is listed in 2 conditions; see the grade overview at ERTi-11.
- PWHT
- AW
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
PWHTThis page Post-weld heat treated | Choose when residual stress must be lowered for dimensional stability or stress-corrosion-sensitive service; strength is essentially unchanged, ductility slightly improved. | 235 | 325 | 32 | 118 HB | 3.1 % IACS |
AWDefault As-welded deposit | Default condition: properties of the deposited Ti-0.2Pd weld metal used for joining Grade 11 (and Grade 7/1/2) base material. | 240 | 330 | 28 | 125 HB | — |
What is ERTi-11 PWHT?
ERTi-11 PWHT is ERTi-11 heat treated to PWHT — choose when residual stress must be lowered for dimensional stability or stress-corrosion-sensitive service; strength is essentially unchanged, ductility slightly improved. ERTi-11 PWHT has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 325 MPa (47.1 ksi) — weaker than 92% of titanium grades. Elongation at break is 32% and the elastic modulus is 103 GPa (14.9 Msi). ERTi-11 PWHT 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). AW is the default condition FabDigit quotes; PWHT is available on request or by drawing note.
Advantages
- Tough — resists crack growth — 95 MPa·√m (86.5 ksi·√in), better than 100% of titanium grades
- Readily welded — 95/100, better than 100% of titanium grades
- Ductile — tolerates forming and impact — 32%, better than 98% of titanium grades
- Conducts heat well — 20 W/m·K (11.6 BTU/hr·ft·°F), better than 98% of titanium grades
- Forms and bends easily — 87/100, better than 93% of titanium grades
Limitations
- Low strength — 235 MPa (34.1 ksi), worse than 92% of titanium grades
ERTi-11 PWHT properties
Typical room-temperature values for ERTi-11 PWHT; 22 are specific to this condition. Other listed values are ERTi-11 reference data and may not represent this condition. Bars are the position among titanium grades.
Physical3
ERTi-11 PWHT 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
ERTi-11 PWHT has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 325 MPa (47.1 ksi) — weaker than 92% of titanium grades. Elongation at break is 32% and the elastic modulus is 103 GPa (14.9 Msi).
Thermal6
ERTi-11 PWHT is rated for continuous service to 315°C (599 °F). It conducts heat at 20 W/m·K (11.6 BTU/hr·ft·°F), better than 98% of titanium grades. Thermal expansion is 8.6 µm/m·K (4.78 µin/in·°F).
Electrical3
ERTi-11 PWHT conducts electricity at 3.1 % IACS, better than 75% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (97/100), better than 99% of titanium grades.
Sustainability4
Producing a kilogram of ERTi-11 PWHT takes about 700 MJ of energy and emits 45 kg of CO₂ — more than 74% of titanium grades. Typical recycled content is 10%.
Manufacturability8
ERTi-11 PWHT's machinability is poor (31/100, better than 68% of titanium grades); weldability excellent (95/100); formability excellent (87/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ERTi-11 PWHT
Is ERTi-11 easy to machine?
Filler wire is rarely machined; if machined, treat as CP Ti — slow speeds, sharp tools, heavy flood coolant, avoid chip ignition.
Can ERTi-11 be welded?
GTAW/GMAW/PAW with high-purity argon, trailing shield and back purge; keep interpass low and joint spotless — any O/N/H pickup embrittles the Ti-0.2Pd deposit.
Can ERTi-11 be formed, bent or molded?
Very ductile in the annealed condition; bends and coils readily but springs back — allow generous bend radii and degrease before welding.
What surface finishes work on ERTi-11?
Pickle in HNO3/HF or use dedicated stainless-free brushes to remove heat tint; can be colour-anodized (AMS 2488) but the natural oxide already gives the corrosion protection.
ERTi-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 for crevice/reducing-acid corrosion resistance | 0.12 – 0.25 | 0.18 |
| Olow-oxygen filler grade | ≤ 0.1 | 0.06 |
| Fe | ≤ 0.2 | 0.08 |
| C | ≤ 0.03 | 0.02 |
| N | ≤ 0.02 | 0.01 |
| H | ≤ 0.01 | 0 |
| Other, eachresidual elements | ≤ 0.05 | — |
| Other, totalresidual elements | ≤ 0.2 | — |
| Ti | balance | — |
ERTi-11 PWHT — frequently asked
What is ERTi-11 PWHT used for?
ERTi-11 PWHT is typically used for welding Grade 11 corrosion-resistant titanium equipment, chemical process piping and desalination plant components. In short: most corrosion-resistant Ti filler; palladium-bearing CP grade; highest weldability rating.
What is the yield strength of ERTi-11 PWHT?
ERTi-11 PWHT has a typical yield strength of 235 MPa (34.1 ksi) and a tensile strength of 325 MPa (47.1 ksi) — weaker than 92% of titanium grades. Strength varies by condition: see the 2 listed tempers.
Is ERTi-11 PWHT easy to machine?
Not especially — machinability is rated poor (31/100, better than 68% of titanium grades). Filler wire is rarely machined; if machined, treat as CP Ti — slow speeds, sharp tools, heavy flood coolant, avoid chip ignition.
Can ERTi-11 PWHT be welded?
Yes — weldability is rated excellent (95/100). GTAW/GMAW/PAW with high-purity argon, trailing shield and back purge; keep interpass low and joint spotless — any O/N/H pickup embrittles the Ti-0.2Pd deposit.
What surface finishes work on ERTi-11 PWHT?
Pickle in HNO3/HF or use dedicated stainless-free brushes to remove heat tint; can be colour-anodized (AMS 2488) but the natural oxide already gives the corrosion protection.
Can ERTi-11 PWHT be formed, bent or molded?
Very ductile in the annealed condition; bends and coils readily but springs back — allow generous bend radii and degrease before welding.
What is the maximum service temperature of ERTi-11 PWHT?
ERTi-11 PWHT 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 ERTi-11-AW and ERTi-11 PWHT?
AW is the default condition — default condition: properties of the deposited Ti-0.2Pd weld metal used for joining Grade 11 (and Grade 7/1/2) base material. PWHT: choose when residual stress must be lowered for dimensional stability or stress-corrosion-sensitive service; strength is essentially unchanged, ductility slightly improved. Yield strength is 240 MPa in AW versus 235 MPa in PWHT.
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 — Titanium and Titanium Alloy Strip, Sheet and Plate (Grade 11) — ASTM (2020)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials (Titanium and Ti-Pd alloys) — ASM International (2005)
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.