Titanium Wire for Aerospace Brazing \| ERTi-23 ELI / Ti-6Al-4V, AMS4954/AMS4956 Route, VAR Melt, MTC 3.1, Baoji

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Проверено и поддерживается инженерной командой Shaanxi Qianyi Tuoda Technology Co., Ltd.

Titanium Wire for Aerospace Brazing | ERTi-23 ELI / Ti-6Al-4V, AMS4954/AMS4956 Route, VAR Melt, MTC 3.1

Meta Description: Aerospace-grade titanium filler wire for brazing/GTAW of Ti-6Al-4V and CP-Ti structures — ERTi-23 ELI / AMS4956 route, VAR double/triple melt, ultra-low interstitials, alpha-case-free surface, AMS-2814-style sealed pack, EN 10204 3.1 with measured values.

Overview — Aerospace Brazing Is a Chain, Not a Wire

"Aerospace titanium brazing wire" means different things to different shops. We separate them clearly:

• Same-alloy Ti braze/fill → ERTi-5 (AMS4954 route) or ERTi-23 ELI (AMS4956 route) for Ti-6Al-4V; ERTi-1/2 for CP-Ti. Filler is titanium, joint is titanium.
• Ti-to-nickel/superalloy braze → nickel-base filler (AMS 4777-type: Ni-Cr-Si-B) is a separate consumable, not a titanium wire. We can source/quote it as a paired item, but it is not "titanium wire".
• High-purity foil/preform braze → custom-rolled Ti/ELI foil, PO-fronted, not off-the-shelf spool logic.

This page covers the titanium filler route. Aerospace compliance = melt route + interstitials + surface + packaging + cert chain — not a buzzword.

Grade Routing (Aviation)

PO must name the AMS number. We do not self-upgrade "industrial ERTi-5" to "AMS4954" — different melt record, different cert.

Melt Route & Interstitial Ceiling

• VAR double melt minimum for ERTi-5 aviation route; triple-VAR quoted for ELI/cryogenic
• O: ERTi-5 ≤0.20% class band / ERTi-23 ELI ≤0.11% (AMS4956)
• H: tightened vs industrial — ELI target ≤125 ppm class discussion, measured on MTC
• N/C controlled; no late-cycle alloy addition in final VAR
• Microstructure: equiaxed α + transformed β, no continuous alpha-case skin

Triple-VAR is the deep-degas route that drives residual hydrogen down for cryogenic/fatigue-critical structures — quoted PO-fronted, not default shelf stock.

Surface = Alpha-Case-Free

• Pickled + ultrasonic clean, no drawing lube residue
• Optional microclean/UltraGrade-style surface treatment (PO-stated)
• Alpha-case check via microhardness traverse on sacrificial coupon when Nadcap calls for it
• Surface HV profile: soft core, no glass-hard O-rich skin
• AMS-2814-style pack: hermetic foil + argon cushion + desiccant

Aerospace weld rejects start at the surface. Clean wire is not premium — it is the entry ticket.

Forms & Sizes

Controlled cast/helix = AM-grade option for automated torch positioning.

Brazing Process Alignment (What We Support)

• Vacuum braze / GTAW / PAW on Ti-6Al-4V and CP-Ti
• Shielding: high-purity Ar, back-purge to cool <315°C HAZ
• Joint design advice deferred to your welding engineer — we supply material data pack, not the WPS
• For Ti-Ni braze: nickel-base AMS4777-type foil/powder quoted separately; we coordinate pack + lot linkage
• No "guaranteed zero porosity" — we guarantee measured inputs, you own the process window

Traceability & Docs

• Melt method stated on MTR: VAR double / triple
• EN 10204 3.1: measured O/H/N/C + Al/V/Fe + tensile + heat-to-ingot
• AMS4954 / AMS4956 cited only when PO names it + melt record supports it
• 3.2 (SGS/BV/TÜV/Nadcap-accredited) PO-fronted witness
• DFARS-origin statement available on request
• Flag-tag per AMS-2816 logic; color-code per AMS-2819 on request

Packaging (AMS-2814-style)

• Hermetic foil + slight argon pressure + desiccant
• Plastic spool, no steel contact, layer-wound
• Outer plywood ISPM-15 + "ARGON-CLEAN / NO LUBE"
• Pre-ship photo: spool face + seal + lot tag + melt-method line

Stock Honesty

No "AMS4956 same-day from shelf" claim. Aviation chain = scheduled, documented, auditable.

Enquiry Template (Copy-Paste)

Base metal: Ti-6Al-4V / CP Gr2 / ELI ___
Filler needed: ERTi-5 (AMS4954) / ERTi-23 (AMS4956) / CP ERTi-2 ___
Melt route: VAR double / triple ___
Diameter: ___ mm (TIG/MIG/foil)
Process: GTAW / PAW / vacuum braze / Ti-Ni braze ___
Interstitial cap: O___% H___ppm
Surface: pickled / alpha-case-free UltraGrade-style ___
Pack: AMS-2814-style Y/N, argon cushion Y/N
Cert: 3.1 / 3.2 (TPI: ___) / Nadcap scope ___
Companion ni-base braze alloy? Y/N (AMS4777-type)
Qty: ___ spools / ___ m foil
Incoterm: EXW Baoji / FOB Shanghai / DAP ___

FAQ — Aerospace Brazing Titanium Wire

Q1: Is this the same as industrial ERTi-5?
A: Same AWS class family, different proof. Aviation route requires VAR melt record + AMS number on PO + measured interstitials + sealed clean pack. We don't relabel industrial stock as AMS4954.

Q2: Can titanium wire braze titanium directly?
A: Same-alloy fill/weld yes (GTAW/PAW/vacuum). True "brazing" of Ti-to-Ti at lower T uses ELI foil/preform — quoted custom, not spool logic.

Q3: Ti to Inconel/nickel — what wire?
A: Nickel-base braze alloy (AMS4777-type) is the joint consumable. We supply Ti filler for the Ti side + quote the Ni braze as companion, lot-linked.

Q4: Triple-VAR necessary?
A: For cryogenic/fatigue-damage-tolerant ELI — yes, to drive H below 125ppm class. Standard airframe ERTi-5 = VAR double, PO-stated.

Q5: Alpha-case guarantee?
A: Surface cleaned + microhardness-check protocol available on coupon. We guarantee process, not "zero atomic oxygen" — that is physics.

Q6: MTC real numbers?
A: Measured O/H/N/C + Al/V/Fe + tensile. Melt method printed on cert.

Q7: Foil for braze preforms?
A: 0.05–0.20mm ELI foil, cleanroom pouch, PO-fronted roll/sheet, die-cut preform on request.

Q8: Nadcap documentation?
A: 3.2 witness by Nadcap-scoped TPI available PO-fronted; MTR format aligned to AC7110 expectations on request.

Q9: Lead time?
A: VAR-double ERTi-5 project heat → quoted after lot confirm. Triple-VAR ELI / foil → melt schedule upfront, no ghost shelf.

Q10: Quote time?
A: 24h acknowledgement; full quote after AMS route + Ø + melt method + cert scope confirmed.

Request a Quote

Email: sales@[yourdomain].com

Send base metal + AMS filler route + melt method + Ø + cert scope. We reply with heat status, melt record outline, EXW/FOB price, dispatch window — no phantom "aviation-grade" stamp without the paper.

About: Baoji Titanium Valley aviation-filler line. Titanium wire for aerospace brazing — ERTi-5 (AMS4954) / ERTi-23 ELI (AMS4956), VAR double/triple, alpha-case-free surface, AMS-2814-style sealed pack, EN 10204 3.1 with measured interstitials. Same-alloy Ti route owned by us; Ni-base braze companion quoted separately. No industrial wire relabeled as flight-grade. Name the AMS number, get the matching melt record.