Titanium Ti Grade 2
UNS R50400 · EN 3.7035 · GB TA2
Ti Grade 2 (UNS R50400, 3.7035, ASTM B265/B348, TA2) is the most widely used commercially pure titanium, balancing moderate strength with formability, weldability and corrosion resistance.
Reference datasheet — Ti Grade 2 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 2 tempers and conditions
Ti Grade 2 is supplied in 6 conditions, soft to hard. Annealed is the default FabDigit quotes; the values on this page are for it.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefault mill annealed sheet, plate, bar and tube (ASTM B265/B348/B338) | Default stocked condition: best ductility and formability with guaranteed 345 MPa UTS minimum. | 340 | 440 | 25 | 150 HB | — |
Cold rolled + annealed strip/sheet (thin gauge) | Choose for thin-gauge deep-drawn or stamped parts needing the finest grain and best surface. | 360 | 460 | 28 | 155 HB | 3.1 % IACS |
Hot rolled | Economical heavy-section condition where the mill scale is removed but no final anneal is applied. | 370 | 470 | 22 | 160 HB | 3.1 % IACS |
Cold worked and stress relieved bar / tube | Pick when higher yield strength and straightness are needed in bar, tube or fastener stock. | 550 | 620 | 15 | 200 HB | — |
Additively manufactured (L-PBF) as-built CP-Ti Grade 2 powder | For printed medical/chemical parts where the fine martensitic-like as-built structure gives higher strength than wrought annealed. | 570 | 690 | 18 | 18 HRC | 3 % IACS |
Cold worked, as-rolled hard strip/foil | Springy hard temper for shims, diaphragms and foil where strength beats formability. | 630 | 700 | 8 | 21 HRC | 3 % IACS |
Supply forms, finishes and certifications
Ways Ti Grade 2 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
Welded-Tube | As-welded tube | Supply form |
Gr2H | Grade 2H | Certification |
What is Ti Grade 2?
Ti Grade 2 (UNS R50400, 3.7035, ASTM B265/B348, TA2) is the most widely used commercially pure titanium, balancing moderate strength with formability, weldability and corrosion resistance. Annealed material gives 340 MPa yield, 440 MPa tensile, 25% elongation and 150 HB (80 HRB), with weldability scored 90 and formability 70, and it is stocked as sheet, plate, bar, welded and seamless tube. Service is limited to about 300 °C and machinability is low (score 32), so cycle times and tooling cost run high versus stainless. Grade 1 is the choice for deeper draws, Grade 3 where more strength is required. Ti Grade 2 has a density of 4.51 g/cm³ (0.163 lb/in³), heavier than 57% of titanium grades. It melts at 1,665°C (3,029 °F). Ti Grade 2 has a yield strength of 340 MPa (49.3 ksi) and a tensile strength of 440 MPa (63.8 ksi) — weaker than 81% of titanium grades. Elongation at break is 25% and the elastic modulus is 105 GPa (15.2 Msi).
What is Ti Grade 2 used for?
- chemical piping and heat exchangers
- marine hardware
- medical devices
- aerospace ducting
- desalination plants
Advantages
- Readily welded — 90/100, better than 93% of titanium grades
- Ductile — tolerates forming and impact — 25%, better than 82% of titanium grades
- High electrical conductivity — 3.1 % IACS, better than 75% of titanium grades
Limitations
- Low strength — 340 MPa (49.3 ksi), worse than 81% of titanium grades
Ti Grade 2 properties
Typical room-temperature values for Ti Grade 2-Annealed; bars are the position among titanium grades.
Physical3
Ti Grade 2 has a density of 4.51 g/cm³ (0.163 lb/in³), heavier than 57% of titanium grades. It melts at 1,665°C (3,029 °F).
Mechanical16
Ti Grade 2 has a yield strength of 340 MPa (49.3 ksi) and a tensile strength of 440 MPa (63.8 ksi) — weaker than 81% of titanium grades. Elongation at break is 25% and the elastic modulus is 105 GPa (15.2 Msi).
Thermal6
Ti Grade 2 is rated for continuous service to 300°C (572 °F). It conducts heat at 16.4 W/m·K (9.48 BTU/hr·ft·°F), better than 71% of titanium grades. Thermal expansion is 8.6 µm/m·K (4.78 µin/in·°F).
Electrical3
Ti Grade 2 conducts electricity at 3.1 % IACS, better than 75% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 53% of titanium grades.
Sustainability4
Producing a kilogram of Ti Grade 2 takes about 650 MJ of energy and emits 40 kg of CO₂ — less than 75% of titanium grades. Typical recycled content is 25%.
Manufacturability8
Ti Grade 2's machinability is poor (32/100, better than 70% of titanium grades); weldability excellent (90/100); formability very good (70/100).
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 2 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with Ti Grade 2
Is Ti Grade 2 easy to machine?
Use sharp, positive-rake carbide, low speed (~30–60 m/min) with heavy rigid setups and flood coolant; avoid dwelling to prevent work-hardening, galling and chip fires.
Can Ti Grade 2 be welded?
Excellent GTAW/PAW/EBW weldability with matching Gr2 (ERTi-2) filler, but the weld, HAZ and root must be fully argon-shielded/trailing-shielded below ~430 °C to avoid oxygen/nitrogen embrittlement.
Can Ti Grade 2 be formed, bent or molded?
Cold forms well at generous bend radii (≈2–3 t) with high springback compensation; warm forming at 200–400 °C greatly improves deep-draw and stretch limits.
Ti Grade 2 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 |
|---|---|---|
| Nmax per ASTM B265 | ≤ 0.03 | 0.01 |
| C | ≤ 0.08 | 0.02 |
| Hmax (0.0125 % for bar/billet) | ≤ 0.02 | 0.01 |
| Fe | ≤ 0.3 | 0.15 |
| Omax; primary strengthener | ≤ 0.25 | 0.15 |
| Other, eachresidual elements, each | ≤ 0.1 | |
| Other, totalresidual elements, total | ≤ 0.4 | |
| Tibalance, ~99.2 % typical | balance |
What surface finishes work on Ti Grade 2?
Pickle in HNO₃/HF to remove alpha case and scale before use; anodizes to durable grey (AMS 2488) or coloured interference films (AMS 2487), and polishes to a bright, biocompatible finish.
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 2 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- R50400
- EN / DIN / Werkstoff-Nr.
- 3.7035
- GB (China)
- TA2
How much does Ti Grade 2 cost?
Ti Grade 2 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 2 — frequently asked
What is Ti Grade 2 used for?
Ti Grade 2 is typically used for chemical piping and heat exchangers, marine hardware, medical devices, aerospace ducting and desalination plants. In short: workhorse CP titanium grade; best weldability of the family; widest stock availability.
What is the yield strength of Ti Grade 2?
Ti Grade 2 has a typical yield strength of 340 MPa (49.3 ksi) and a tensile strength of 440 MPa (63.8 ksi) — weaker than 81% of titanium grades. Strength varies by condition: see the 6 listed tempers.
Is Ti Grade 2 easy to machine?
Not especially — machinability is rated poor (32/100, better than 70% of titanium grades). Use sharp, positive-rake carbide, low speed (~30–60 m/min) with heavy rigid setups and flood coolant; avoid dwelling to prevent work-hardening, galling and chip fires.
Can Ti Grade 2 be welded?
Yes — weldability is rated excellent (90/100). Excellent GTAW/PAW/EBW weldability with matching Gr2 (ERTi-2) filler, but the weld, HAZ and root must be fully argon-shielded/trailing-shielded below ~430 °C to avoid oxygen/nitrogen embrittlement.
What surface finishes work on Ti Grade 2?
Pickle in HNO₃/HF to remove alpha case and scale before use; anodizes to durable grey (AMS 2488) or coloured interference films (AMS 2487), and polishes to a bright, biocompatible finish.
Can Ti Grade 2 be formed, bent or molded?
Cold forms well at generous bend radii (≈2–3 t) with high springback compensation; warm forming at 200–400 °C greatly improves deep-draw and stretch limits.
What is the maximum service temperature of Ti Grade 2?
Ti Grade 2 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 Ti Grade 2 Annealed and Ti Grade 2 CW-Hard?
Annealed is the default condition — default stocked condition: best ductility and formability with guaranteed 345 MPa UTS minimum. CW-Hard: springy hard temper for shims, diaphragms and foil where strength beats formability. Yield strength is 340 MPa in Annealed versus 630 MPa in CW-Hard.
How much does Ti Grade 2 cost?
Ti Grade 2 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 — ASTM International (2020)
- ASTM B348 – Titanium and Titanium Alloy Bars and Billets — ASTM International (2021)
- ASTM B338 – Seamless and Welded Titanium Tubes for Condensers and Heat Exchangers — ASTM International (2022)
- ASTM F67 – Unalloyed Titanium for Surgical Implant Applications — ASTM International (2017)
- ASM Handbook Vol. 2 – Properties and Selection: Nonferrous Alloys — ASM International (1990)
- Materials Properties Handbook: Titanium Alloys — ASM International (1994)
- TIMETAL Commercially Pure Titanium Grade 2 datasheet — TIMET (2018)
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.