Titanium ERTi-2
GB ERTi2 · ISO 24034 Ti2
ERTi-2 is unalloyed (commercially pure) titanium welding filler, UNS R50120, matching CP Ti Grade 2 base metal in strength and corrosion resistance.
Reference datasheet — ERTi-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 AW condition
ERTi-2 tempers and conditions
ERTi-2 is supplied in 3 conditions, soft to hard. AW is the default FabDigit quotes; the values on this page are for it.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest, most ductile condition; used when the whole fabrication is annealed for forming or maximum toughness/hydrogen control. | 340 | 450 | 28 | 145 HB | 3.1 % IACS |
Stress relieved | Pick when residual stress must be cut for dimensional stability or stress-corrosion service (e.g. hot chloride, methanol) without softening much. | 355 | 465 | 25 | 150 HB | 3.1 % IACS |
AWDefault As-welded deposit | Default condition of the deposited weld metal straight from GTAW/GMAW with full argon shielding and trailing/back purge. | 380 | 480 | 22 | 155 HB | — |
Supply forms, finishes and certifications
Ways ERTi-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 |
|---|---|---|
WIRE | Supplied filler wire/rod condition | Supply form |
What is ERTi-2?
ERTi-2 is unalloyed (commercially pure) titanium welding filler, UNS R50120, matching CP Ti Grade 2 base metal in strength and corrosion resistance. It is the standard consumable for general titanium fabrication, supplied as spooled wire and cut lengths and reported in as-welded, stress-relieved and annealed conditions, with typical deposit values of 380 MPa yield, 480 MPa tensile, 22% elongation and 155 HB (80 HRB). Deposits are limited to about 315 °C service and cannot match the strength of alloyed base metals; use ERTi-3 when a stronger CP deposit is needed or ERTi-7 for reducing-acid crevice corrosion. ERTi-2 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). ERTi-2 has a yield strength of 380 MPa (55.1 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 73% of titanium grades. Elongation at break is 22% and the elastic modulus is 105 GPa (15.2 Msi).
What is ERTi-2 used for?
- Welding CP Ti Grade 2 vessels
- Marine and desalination equipment
- Aerospace ducting
- General titanium fabrication
Advantages
- Easy to machine — 40/100, better than 93% of titanium grades
- Readily welded — 90/100, better than 93% of titanium grades
- High electrical conductivity — 3.1 % IACS, better than 75% of titanium grades
ERTi-2 properties
Typical room-temperature values for ERTi-2-AW; bars are the position among titanium grades.
Physical3
ERTi-2 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-2 has a yield strength of 380 MPa (55.1 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 73% of titanium grades. Elongation at break is 22% and the elastic modulus is 105 GPa (15.2 Msi).
Thermal6
ERTi-2 is rated for continuous service to 315°C (599 °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
ERTi-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 ERTi-2 takes about 650 MJ of energy and emits 40 kg of CO₂ — less than 75% of titanium grades. Typical recycled content is 20%.
Manufacturability7
ERTi-2's machinability is fair (40/100, better than 93% 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. ERTi-2 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with ERTi-2
Is ERTi-2 easy to machine?
Weld metal machines like CP Ti Gr.2 — slow speed, high feed, sharp carbide tools, flood coolant, never dwell (galling and fire risk with fine chips).
Can ERTi-2 be welded?
GTAW/GMAW/PAW with 99.99 % argon or Ar-He, trailing shield and full back purge; keep interpass <150 °C and joints surgically clean — straw/blue tint is acceptable, grey/white powder means scrap and rework.
Can ERTi-2 be formed, bent or molded?
Deposited metal is ductile enough for cold bending at generous radii (≥3–4 t); hot forming 600–750 °C in the annealed condition to avoid springback.
ERTi-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 |
|---|---|---|
| C | ≤ 0.03 | 0.02 |
| Ocontrolled range — main strength contributor | 0.08 – 0.16 | 0.12 |
| N | ≤ 0.02 | 0.01 |
| H | ≤ 0.01 | 0 |
| Fe | ≤ 0.2 | 0.1 |
| Others (each)residual elements, each | ≤ 0.05 | |
| Others (total)residual elements, total | ≤ 0.4 | |
| Ti | balance |
What surface finishes work on ERTi-2?
Pickle in HNO3/HF or abrasive-blast plus pickle to remove alpha case; colour anodizing or thermal oxidation for identification; avoid iron contamination from steel brushes/grinding media.
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 ERTi-2 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ISO
- 24034 Ti2
- GB (China)
- ERTi2
- Similar grades
- R50120
How much does ERTi-2 cost?
ERTi-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.
ERTi-2 — frequently asked
What is ERTi-2 used for?
ERTi-2 is typically used for welding CP Ti Grade 2 vessels, marine and desalination equipment, aerospace ducting and general titanium fabrication. In short: most widely used Ti filler; matches CP Grade 2 strength; highest-ductility CP deposit.
What is the yield strength of ERTi-2?
ERTi-2 has a typical yield strength of 380 MPa (55.1 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 73% of titanium grades. Strength varies by condition: see the 3 listed tempers.
Is ERTi-2 easy to machine?
Not especially — machinability is rated fair (40/100, better than 93% of titanium grades). Weld metal machines like CP Ti Gr.2 — slow speed, high feed, sharp carbide tools, flood coolant, never dwell (galling and fire risk with fine chips).
Can ERTi-2 be welded?
Yes — weldability is rated excellent (90/100). GTAW/GMAW/PAW with 99.99 % argon or Ar-He, trailing shield and full back purge; keep interpass <150 °C and joints surgically clean — straw/blue tint is acceptable, grey/white powder means scrap and rework.
What surface finishes work on ERTi-2?
Pickle in HNO3/HF or abrasive-blast plus pickle to remove alpha case; colour anodizing or thermal oxidation for identification; avoid iron contamination from steel brushes/grinding media.
Can ERTi-2 be formed, bent or molded?
Deposited metal is ductile enough for cold bending at generous radii (≥3–4 t); hot forming 600–750 °C in the annealed condition to avoid springback.
What is the maximum service temperature of ERTi-2?
ERTi-2 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-2-AW and ERTi-2-ANN?
AW is the default condition — default condition of the deposited weld metal straight from GTAW/GMAW with full argon shielding and trailing/back purge. ANN: softest, most ductile condition; used when the whole fabrication is annealed for forming or maximum toughness/hydrogen control. Yield strength is 380 MPa in AW versus 340 MPa in ANN.
How much does ERTi-2 cost?
ERTi-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
- AWS A5.16/A5.16M — Titanium and Titanium-Alloy Welding Electrodes and Rods — AWS (2013)
- ASTM B265 / B348 — Titanium and Titanium Alloy Strip, Sheet, Plate and Bars (Grade 2) — ASTM (2020)
- ISO 24034 — Welding consumables, solid wires and rods for fusion welding of titanium — ISO (2020)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.6 / Vol.13B — Welding and Corrosion of Titanium — ASM International (1993)
- CP titanium filler wire datasheets — / Titanium Industries (2023)
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.