Titanium Ti Grade 2-HR (Hot rolled)
Supply condition
UNS R50400 · EN 3.7035 · GB TA2
Economical heavy-section condition where the mill scale is removed but no final anneal is applied.
Values for the HR condition
Other Ti Grade 2 tempers and conditions
Ti Grade 2 is listed in 6 conditions; see the grade overview at Ti Grade 2.
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 |
HRThis page 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 |
What is Ti Grade 2-HR?
Ti Grade 2-HR is Ti Grade 2 supplied in the HR condition — economical heavy-section condition where the mill scale is removed but no final anneal is applied. Ti Grade 2-HR has a yield strength of 370 MPa (53.7 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 76% of titanium grades. Elongation at break is 22% and the elastic modulus is 105 GPa (15.2 Msi). Ti Grade 2-HR 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). Annealed is the default condition FabDigit quotes; HR is available on request or by drawing note.
Advantages
- High electrical conductivity — 3.1 % IACS, better than 75% of titanium grades
Limitations
- Low strength — 370 MPa (53.7 ksi), worse than 76% of titanium grades
Ti Grade 2-HR properties
Typical room-temperature values for Ti Grade 2-HR; 22 are specific to this condition. Other listed values are Ti Grade 2 reference data and may not represent this condition. Bars are the position among titanium grades.
Physical3
Ti Grade 2-HR 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-HR has a yield strength of 370 MPa (53.7 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 76% of titanium grades. Elongation at break is 22% and the elastic modulus is 105 GPa (15.2 Msi).
Thermal6
Ti Grade 2-HR 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-HR 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-HR 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-HR's machinability is poor (30/100, better than 64% 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 Ti Grade 2-HR
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.
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.
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 | — |
Ti Grade 2-HR — frequently asked
What is Ti Grade 2-HR used for?
Ti Grade 2-HR 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-HR?
Ti Grade 2-HR has a typical yield strength of 370 MPa (53.7 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 76% of titanium grades. Strength varies by condition: see the 6 listed tempers.
Is Ti Grade 2-HR easy to machine?
Not especially — machinability is rated poor (30/100, better than 64% 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-HR be welded?
Yes — weldability is rated excellent (88/100). 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-HR?
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-HR 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-HR?
Ti Grade 2-HR 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.
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. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.