Titanium Ti Grade 35
UNS R56340 · ASTM Grade 35 · also TIMETAL 62S
Ti Grade 35 (UNS R56340, TIMETAL 62S) is a low-cost, cold-formable alpha-beta titanium alloy developed as a cheaper substitute for Ti-6Al-4V in fasteners and sheet parts that must be formed.
Reference datasheet — Ti Grade 35 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 Annealed condition
Ti Grade 35 tempers and conditions
Ti Grade 35 is supplied in 5 conditions, soft to hard. Annealed is the default FabDigit quotes; the values on this page are for it.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution annealed | Softest, most ductile condition — used as the pre-form state for deep drawing and cold heading before ageing. | 830 | 900 | 20 | 30 HRC | 1 % IACS |
SPF/Annealed | Condition of parts after low-temperature (≈750–800 °C) superplastic forming/diffusion bonding — the alloy's signature application. | 890 | 960 | 15 | 32 HRC | 1 % IACS |
AnnealedDefault mill annealed (typ. 700–780 °C, air cool) | Standard stocked condition for sheet, plate and bar; best balance of strength, ductility and toughness. | 920 | 990 | 16 | 33 HRC | — |
Cold worked | As-cold-rolled strip or drawn wire; higher strength with reduced ductility, normally stress-relieved or annealed before use. | 1,050 | 1,120 | 8 | 36 HRC | 1 % IACS |
Solution treated and aged | Choose for maximum strength in fasteners, springs and thin high-load sections; ductility and toughness drop. | 1,200 | 1,290 | 9 | 40 HRC | — |
Supply forms, finishes and certifications
Ways Ti Grade 35 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
BA | Beta annealed (above beta transus, ~900 °C) and cooled | Surface finish |
What is Ti Grade 35?
Ti Grade 35 (UNS R56340, TIMETAL 62S) is a low-cost, cold-formable alpha-beta titanium alloy developed as a cheaper substitute for Ti-6Al-4V in fasteners and sheet parts that must be formed. It is supplied annealed, solution treated, solution treated and aged, cold worked, beta annealed or in SPF-A condition, with default values of 920 MPa yield, 990 MPa tensile, 16 % elongation, 33 HRC, 110 GPa modulus and service to 350 °C. Machinability is the main limitation (rating 18), with weldability 70 and formability 55; Ti-6Al-4V remains the alternative where established specifications and supply matter more than cost. Ti Grade 35 has a density of 4.54 g/cm³ (0.164 lb/in³), heavier than 80% of titanium grades. It melts at 1,590°C (2,894 °F). Ti Grade 35 has a yield strength of 920 MPa (133 ksi) and a tensile strength of 990 MPa (144 ksi) — stronger than 85% of titanium grades. Elongation at break is 16% and the elastic modulus is 110 GPa (16 Msi).
What is Ti Grade 35 used for?
- Aerospace fasteners
- Formed sheet-metal brackets
- Superplastically formed and diffusion-bonded panels
- Airframe clips and stiffeners
- Machined fittings and links
- Hot-formed ducting components
Advantages
- High strength — 920 MPa (133 ksi), better than 85% of titanium grades
Limitations
- Low electrical conductivity — 1 % IACS, worse than 89% of titanium grades
Ti Grade 35 properties
Typical room-temperature values for Ti Grade 35-Annealed; bars are the position among titanium grades.
Physical3
Ti Grade 35 has a density of 4.54 g/cm³ (0.164 lb/in³), heavier than 80% of titanium grades. It melts at 1,590°C (2,894 °F).
Mechanical16
Ti Grade 35 has a yield strength of 920 MPa (133 ksi) and a tensile strength of 990 MPa (144 ksi) — stronger than 85% of titanium grades. Elongation at break is 16% and the elastic modulus is 110 GPa (16 Msi).
Thermal6
Ti Grade 35 is rated for continuous service to 350°C (662 °F). It conducts heat at 7 W/m·K (4.04 BTU/hr·ft·°F), worse than 76% of titanium grades. Thermal expansion is 9.4 µm/m·K (5.22 µin/in·°F).
Electrical3
Ti Grade 35 conducts electricity at 1 % IACS, worse than 89% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (85/100), worse than 93% of titanium grades.
Sustainability4
Producing a kilogram of Ti Grade 35 takes about 680 MJ of energy and emits 44 kg of CO₂ — more than 51% of titanium grades. Typical recycled content is 25%.
Manufacturability8
Ti Grade 35's machinability is poor (18/100, worse than 83% of titanium grades); weldability very good (70/100); formability good (55/100).
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. Ti Grade 35 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with Ti Grade 35
Is Ti Grade 35 easy to machine?
Machine like Ti-6Al-4V but ~10–20 % slower: rigid setups, sharp uncoated-carbide or AlTiN tools, 20–40 m/min in the annealed state, heavy flood coolant, never dwell in the cut.
Can Ti Grade 35 be welded?
GTAW, plasma, laser or EB welding in high-purity argon or vacuum with full back-shielding; weld metal is stronger but less ductile than base metal, so post-weld anneal or full STA is recommended.
Can Ti Grade 35 be formed, bent or molded?
Its main selling point — good room-temperature bendability in the ST/annealed condition and superplastic forming at only ~750–800 °C (lower than Ti-6Al-4V), enabling SPF/diffusion-bonded structures with reduced tooling wear.
Ti Grade 35 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 | 4 – 5 | 4.5 |
| V | 2.5 – 3.5 | 3 |
| Mo | 1.8 – 2.2 | 2 |
| Febeta stabiliser; responsible for grain refinement and low-temperature SPF | 1.7 – 2.3 | 2 |
| O | ≤ 0.15 | 0.1 |
| C | ≤ 0.05 | |
| N | ≤ 0.05 | |
| Hmax (sheet/strip may be lower) | ≤ 0.02 | |
| Other, eachresiduals | ≤ 0.1 | |
| Other, totalresiduals | ≤ 0.4 | |
| Ti | balance |
What surface finishes work on Ti Grade 35?
Descale by grit blast + HNO3/HF pickle after hot work; accepts Type II colour anodising, oxide/anodic conversion coatings for galling resistance, and polishes well due to its fine grain size.
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 Ti Grade 35 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- R56340
- ASTM
- Grade 35
- Trade names
- TIMETAL 62S
How much does Ti Grade 35 cost?
Ti Grade 35 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.
Ti Grade 35 — frequently asked
What is Ti Grade 35 used for?
Ti Grade 35 is typically used for aerospace fasteners, formed sheet-metal brackets, superplastically formed and diffusion-bonded panels, airframe clips and stiffeners, machined fittings and links and hot-formed ducting components. In short: low-cost Ti-6Al-4V substitute; cold-formable alpha-beta alloy; lower-temperature SPF.
What is the yield strength of Ti Grade 35?
Ti Grade 35 has a typical yield strength of 920 MPa (133 ksi) and a tensile strength of 990 MPa (144 ksi) — stronger than 85% of titanium grades. Strength varies by condition: see the 5 listed tempers.
Is Ti Grade 35 easy to machine?
Not especially — machinability is rated poor (18/100, worse than 83% of titanium grades). Machine like Ti-6Al-4V but ~10–20 % slower: rigid setups, sharp uncoated-carbide or AlTiN tools, 20–40 m/min in the annealed state, heavy flood coolant, never dwell in the cut.
Can Ti Grade 35 be welded?
Yes — weldability is rated very good (70/100). GTAW, plasma, laser or EB welding in high-purity argon or vacuum with full back-shielding; weld metal is stronger but less ductile than base metal, so post-weld anneal or full STA is recommended.
What surface finishes work on Ti Grade 35?
Descale by grit blast + HNO3/HF pickle after hot work; accepts Type II colour anodising, oxide/anodic conversion coatings for galling resistance, and polishes well due to its fine grain size.
Can Ti Grade 35 be formed, bent or molded?
Its main selling point — good room-temperature bendability in the ST/annealed condition and superplastic forming at only ~750–800 °C (lower than Ti-6Al-4V), enabling SPF/diffusion-bonded structures with reduced tooling wear.
What is the maximum service temperature of Ti Grade 35?
Ti Grade 35 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 Ti Grade 35 Annealed and Ti Grade 35-STA?
Annealed is the default condition — standard stocked condition for sheet, plate and bar; best balance of strength, ductility and toughness. STA: choose for maximum strength in fasteners, springs and thin high-load sections; ductility and toughness drop. Yield strength is 920 MPa in Annealed versus 1,200 MPa in STA.
How much does Ti Grade 35 cost?
Ti Grade 35 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 B265 — Titanium and Titanium Alloy Strip, Sheet, and Plate (Grade 35, UNS R56340) — ASTM International (2020)
- ASTM B348 — Titanium and Titanium Alloy Bars and Billets — ASTM International (2021)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- Materials Properties Handbook: Titanium Alloys — ASM International (1994)
- SP-700 (Ti-4.5Al-3V-2Mo-2Fe) alloy data sheet — NKK / Nippon Steel & Sumitomo Metal (2015)
- ASM Handbook Vol.13B — Corrosion: Materials (titanium and titanium alloys) — ASM International (2005)
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.