INGOT > Titanium
INGOTTITANIUM
Ti 6-2-4-2 (Ti-6Al-2Sn-4Zr-2Mo)
Ti 6-2-4-2 (Ti-6Al-2Sn-4Zr-2Mo, UNS R54620) is a near-alpha titanium alloy developed for high-temperature service, combining high strength with excellent creep resistance and thermal stability up to approximately 540°C (1000°F). DASM produces Ti 6-2-4-2 ingots lot by lot through its PAM-ISM hybrid continuous melting process: plasma arc melting melts and alloys the charge, including the refractory molybdenum addition, and induction skull melting in a water-cooled copper crucible homogenizes the melt before continuous vertical withdrawal, with no crucible contamination. Standard ingots measure Ø230 mm × 700-2,800 mm, with chemistry verified by OES, O/N and C/S analysis and full traceability from raw material lot to heat and ingot number. The ingots are suited to R&D, trial melting and qualification programs, and as input stock for VAR remelting, forging and hot rolling; customer approval and downstream validation depend on the application.
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2026_동아특수금속 IR Book.pdf
Product Introduction
InquiryChemical Composition
| Grades | Ti | Al | Sn | Zr | Mo | Si | Fe (max) | O (max) | C (max) | N (max) | H (max) | Others, total (max) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ti 6-2-4-2 (AMS 4919, UNS R54620) |
Balance | 5.50-6.50 | 1.80-2.20 | 3.60-4.40 | 1.80-2.20 | 0.06-0.10 | 0.25 | 0.12 | 0.05 | 0.05 | 0.015 | 0.30 |
Unit: wt%. Per AMS 4919 (sheet, strip and plate); residual elements 0.10 max each. Interstitial limits vary by product specification (e.g., AMS 4975 bar and rings: O 0.15 max, H 0.0125 max).
