Titanium Grade Ti-Pd17
ASTM B367 Grade Ti-Pd17
Grade Ti-Pd17 is a palladium-bearing unalloyed cast titanium to ASTM B367, matching wrought Grade 17 chemistry; the palladium addition improves crevice and reducing-acid resistance rather than strength.
Reference datasheet — Grade Ti-Pd17 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the F condition
Grade Ti-Pd17 tempers and conditions
Grade Ti-Pd17 is supplied in 4 conditions, soft to hard. F is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Use to remove casting and weld-repair residual stresses and to maximise ductility for forming/machining of thin sections. | 220 | 315 | 22 | 140 HB | 3.1 % IACS |
HIP + annealed | Highest-integrity condition: pore-free plus stress-free, for pressure-boundary and cyclically loaded corrosion castings. | 230 | 330 | 25 | 145 HB | 3.1 % IACS |
FDefault As fabricated | Default supply condition for corrosion-service castings where internal porosity is acceptable and only pressure-tightness is required. | 235 | 330 | 18 | 150 HB | — |
Hot isostatic pressed | Choose when internal shrinkage/gas porosity must be closed for fatigue-loaded or radiographically inspected castings. | 240 | 340 | 24 | 150 HB | 3.1 % IACS |
What is Grade Ti-Pd17?
Grade Ti-Pd17 is a palladium-bearing unalloyed cast titanium to ASTM B367, matching wrought Grade 17 chemistry; the palladium addition improves crevice and reducing-acid resistance rather than strength. Default cast properties are 235 MPa yield, 330 MPa tensile, 18 % elongation and 150 HB (80 HRB), with service to 300 °C, supplied as investment or rammed-graphite castings in F, HIP, ANN and HIP+ANN conditions. Engineers specify it for corrosion-critical shapes (corrosion score 97) where ductility matters more than load capacity. Strength is low, machinability is moderate (40) and palladium raises cost; Grade Ti-Pd18 castings are the nearest alternative when higher strength is needed. Grade Ti-Pd17 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). Grade Ti-Pd17 has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 330 MPa (47.9 ksi) — weaker than 92% of titanium grades. Elongation at break is 18% and the elastic modulus is 103 GPa (14.9 Msi).
What is Grade Ti-Pd17 used for?
- chemical tank castings
- corrosion-resistant fittings
- marine hardware castings
Advantages
- Easy to machine — 40/100, better than 93% of titanium grades
- Conducts heat well — 17.5 W/m·K (10.1 BTU/hr·ft·°F), better than 90% of titanium grades
- Tough — resists crack growth — 80 MPa·√m (72.8 ksi·√in), better than 81% of titanium grades
- High electrical conductivity — 3.1 % IACS, better than 75% of titanium grades
Limitations
- Low strength — 235 MPa (34.1 ksi), worse than 92% of titanium grades
Grade Ti-Pd17 properties
Typical room-temperature values for Grade Ti-Pd17-F; bars are the position among titanium grades.
Physical3
Grade Ti-Pd17 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 Ti-Pd17 has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 330 MPa (47.9 ksi) — weaker than 92% of titanium grades. Elongation at break is 18% and the elastic modulus is 103 GPa (14.9 Msi).
Thermal6
Grade Ti-Pd17 is rated for continuous service to 300°C (572 °F). It conducts heat at 17.5 W/m·K (10.1 BTU/hr·ft·°F), better than 90% of titanium grades. Thermal expansion is 8.6 µm/m·K (4.78 µin/in·°F).
Electrical3
Grade Ti-Pd17 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 Grade Ti-Pd17 takes about 650 MJ of energy and emits 40 kg of CO₂ — less than 75% of titanium grades. Typical recycled content is 35%.
Manufacturability8
Grade Ti-Pd17's machinability is fair (40/100, better than 93% of titanium grades); weldability excellent (85/100); formability poor (30/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the titanium family
Yield strength against density for every titanium grade FabDigit runs. Grade Ti-Pd17 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with Grade Ti-Pd17
Is Grade Ti-Pd17 easy to machine?
Machine like CP titanium: sharp uncoated-carbide or coated tools, low surface speed (~30–60 m/min), heavy positive rake, generous flood coolant; galling and built-up edge are the main issues, never dwell in the cut.
Can Grade Ti-Pd17 be welded?
Excellent GTAW/PAW/EBW weldability with matching Grade 17/Ti-Pd filler; requires full argon/helium shielding of pool, trailing shield and backpurge, scrupulous cleanliness, and weld-zone colour checks (silver/straw only).
Can Grade Ti-Pd17 be formed, bent or molded?
Supplied as vacuum-melted castings (investment shell or rammed graphite); expect ~1.5–2 % shrink allowance, an alpha-case layer to be chemically milled, and weld upgrade of indications per ASTM B367.
Grade Ti-Pd17 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 enhanced crevice/reducing-acid resistance | 0.04 – 0.08 | 0.06 |
| Olow-oxygen (Grade 17 level); some foundry practice permits slightly higher for castings | ≤ 0.18 | 0.12 |
| Fe | ≤ 0.2 | 0.08 |
| C | ≤ 0.1 | 0.02 |
| N | ≤ 0.03 | 0.01 |
| Hcast product; hydrogen checked after any weld repair | ≤ 0.02 | 0.01 |
| Residuals, each | ≤ 0.1 | |
| Residuals, total | ≤ 0.4 | |
| Ti | balance |
What surface finishes work on Grade Ti-Pd17?
Grit blast + pickle (HNO3/HF) to remove alpha case and scale; passivates naturally, can be anodised (AMS 2488) for colour or anti-galling, and polishes to a bright finish; do not plate for corrosion reasons.
Surface treatments FabDigit runs on titanium parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Titanium Grade Ti-Pd17 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ASTM
- B367 Grade Ti-Pd17
How much does Grade Ti-Pd17 cost?
Grade Ti-Pd17 is a high-cost titanium ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Grade Ti-Pd17 — frequently asked
What is Grade Ti-Pd17 used for?
Grade Ti-Pd17 is typically used for chemical tank castings, corrosion-resistant fittings and marine hardware castings. In short: most corrosion-resistant cast titanium; highest-ductility cast Ti grade; pd-alloyed crevice resistance.
What is the yield strength of Grade Ti-Pd17?
Grade Ti-Pd17 has a typical yield strength of 235 MPa (34.1 ksi) and a tensile strength of 330 MPa (47.9 ksi) — weaker than 92% of titanium grades. Strength varies by condition: see the 4 listed tempers.
Is Grade Ti-Pd17 easy to machine?
Not especially — machinability is rated fair (40/100, better than 93% of titanium grades). Machine like CP titanium: sharp uncoated-carbide or coated tools, low surface speed (~30–60 m/min), heavy positive rake, generous flood coolant; galling and built-up edge are the main issues, never dwell in the cut.
Can Grade Ti-Pd17 be welded?
Yes — weldability is rated excellent (85/100). Excellent GTAW/PAW/EBW weldability with matching Grade 17/Ti-Pd filler; requires full argon/helium shielding of pool, trailing shield and backpurge, scrupulous cleanliness, and weld-zone colour checks (silver/straw only).
What surface finishes work on Grade Ti-Pd17?
Grit blast + pickle (HNO3/HF) to remove alpha case and scale; passivates naturally, can be anodised (AMS 2488) for colour or anti-galling, and polishes to a bright finish; do not plate for corrosion reasons.
Can Grade Ti-Pd17 be formed, bent or molded?
Supplied as vacuum-melted castings (investment shell or rammed graphite); expect ~1.5–2 % shrink allowance, an alpha-case layer to be chemically milled, and weld upgrade of indications per ASTM B367.
What is the maximum service temperature of Grade Ti-Pd17?
Grade Ti-Pd17 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 Ti-Pd17-F and Grade Ti-Pd17-ANN?
F is the default condition — default supply condition for corrosion-service castings where internal porosity is acceptable and only pressure-tightness is required. ANN: use to remove casting and weld-repair residual stresses and to maximise ductility for forming/machining of thin sections. Yield strength is 235 MPa in F versus 220 MPa in ANN.
How much does Grade Ti-Pd17 cost?
Grade Ti-Pd17 is a high-cost titanium ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- ASTM B367 – Standard Specification for Titanium and Titanium Alloy Castings — ASTM International (2022)
- ASTM B265 / B348 – Titanium and Titanium Alloy Strip, Sheet, Plate and Bars (Grade 17 chemistry & properties) — ASTM International (2020)
- ASM Handbook Vol. 2 – Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Handbook Vol. 13B – Corrosion: Materials (Titanium and Ti-Pd alloys) — ASM International (2005)
- Corrosion-resistant titanium grades (Grade 7/11/16/17) technical data — TIMET / VSMPO (2021)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.