Chemical composition
Nominal: mid-range where both limits are given, the cap where only a maximum is, balance takes the remainder. Exact specified ranges below.
| Element | Name | Content % | |
|---|---|---|---|
| Main elements6 elements | |||
| Ti | Titanium | Bal. | |
| Al | Aluminium | 5.5 – 6.5% | |
| Zr | Zirconium | 3.6 – 4.4% | |
| Mo | Molybdenum | 1.8 – 2.2% | |
| Sn | Tin | 1.8 – 2.2% | |
| Si | Silicon | 0.06 – 0.1% | |
| Element | Name | Content % | |
|---|---|---|---|
| Minor & residual6 elements | |||
| O | Oxygen | ≤ 0.15% | |
| Fe | Iron | ≤ 0.1% | |
| C | Carbon | ≤ 0.05% | |
| N | Nitrogen | ≤ 0.05% | |
| H | Hydrogen | ≤ 0.0125% | |
| Y | Yttrium | ≤ 0.005% | |
Mechanical minima by form
Guaranteed values differ by form, size and delivery condition; quotations confirm the specification, form, size and condition.
| Form | Condition | Rm MPa | Rp0.2 MPa | A ≥ % |
|---|---|---|---|---|
| Bar, wire and flash-welded rings | Near-beta solution treated, aged at 593 °C for 8 h; ≤76.2 mm and cross-section ≤103 cm² | ≥ 896 (130 ksi) | ≥ 827 (120 ksi) | ≥ 10 |
| Bar, wire and flash-welded rings | Same condition, tensile at 482 °C | ≥ 621 (90 ksi) | ≥ 483 (70 ksi) | ≥ 15 |
Where this grade is recommended
Matched in 1 service conditions; ranks and scores computed from the condition-scoring matrix.
| Service condition | Industry | Temperature | Rank | Score |
|---|---|---|---|---|
| Turbine discs & blades | Aerospace | 600 – 800 °C | 7 / 8 | 66 |
Designations & equivalents
| UNS | R54620 |
| Trade name(s) | Ti-6Al-2Sn-4Zr-2Mo / Ti-6242 |
| AMS (SAE aerospace) | 4975 / 4976 |
Cross-references are common near-equivalents for search and shortlisting; substitution across standards requires clause-by-clause verification. All grades in one cross-reference table →
Applicable standards
2 specifications. Name the standard and its edition on the order.
Guaranteed values and required tests differ between specifications — see Mechanical minima by form for the figures per form.
Frequently asked questions
What is TA19 (Ti-6242S)?
TA19 (Ti-6242S) — Titanium. High-temperature creep grade — compressor discs and blades
What is the maximum service temperature of TA19?
Typically about 540 °C; the practical limit depends on media, stress and design life — acceptance per the governing standard.
What is the tensile strength of TA19?
The specified minimum tensile strength is 896 MPa for the main product form. Minima for other forms and sizes are listed under "Mechanical minima by form" on this page.
Which standards cover TA19?
SAE AMS 4975 Ti-6Al-2Sn-4Zr-2Mo-0.08Si, SAE AMS 4976 Ti-6Al-2Sn-4Zr-2Mo-0.08Si
Where is TA19 typically used?
Turbine discs & blades (Aerospace)
In which forms is TA19 available?
Tube, plate, strip, bar, forgings, wire and other forms — sizes and delivery condition confirmed per order, with EN 10204 3.1 / 3.2 certification.
Same series
Download PDF datasheet
This grade’s datasheet as an A4 PDF — for filing, printing or forwarding to colleagues.
Download PDF datasheetSupply & enquiry
Tube & pipeφ1 – 219 × 0.25 – 25 mm
Plate4.76 – 80 mm
Barφ8 – 300 mm
Wire & filler metalsφ0.01 – 8 mmFor this grade we can supply, against your service conditions:
- Tube, plate, strip, bar, forgings, wire and more — with size range and lead time
- Chemistry and mechanical test report (EN 10204 3.1 / 3.2)
- Like-for-like alternatives and selection advice
- Applicable standards and inspection scope
Or email us: info@kochlin.com