Gr1 Titanium Wire for Welding Stock \| ERTi-1 AWS A5.16 / ASTM B863, Spool & TIG Rod, MTC 3.1, Baoji Stock

Product Overview

Reviewed and maintained by the Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd.

Gr1 Titanium Wire for Welding Stock | ERTi-1 (AWS A5.16) & ASTM B863, TIG/MIG, MTC 3.1

Meta Description: Gr1 / ERTi-1 titanium welding wire in stock from Baoji — AWS A5.16 / ASTM B863, Ø0.8–3.2mm TIG & MIG, spool/coil/straight rod, bright pickled, EN 10204 3.1 heat/lot traceable. For chemical/sea/explosive-cladding welds. Quote with WPS + diameter + package.

Overview — Welding Wire Is a Consumable, Not a Bar

The first mistake in titanium weld-wire procurement: writing "Gr1 wire" and expecting it to clear QA. There are two correct descriptions:

• Base-material wire → ASTM B863 Gr1 (structural/forming wire)
• Welding filler (correct for GTAW/GMAW) → ERTi-1 per AWS A5.16 / ISO 24034

ERTi-1 caps interstitials tighter (O ≤0.10% per AWS A5.16 filler class) than generic B863 Gr1 base stock. We stock both, but the PO must name the spec. A weld inspected to a WPS citing ERTi-1 cannot be released on a "Gr1 B863" cert alone — classification and revision decide acceptance.

Baoji Titanium Valley stock: ERTi-1 spools for MIG, straight TIG rods for GTAW/PAW, bright-pickled, argon-clean, lot-traceable. Annealed, low-interstitial, heat No. on every spool.

Why Gr1 / ERTi-1 for Welding

• Softest CP titanium — highest ductility, lowest crack sensitivity in the weld metal
• Best for thin-wall chemical pipe, heat-exchanger tube-to-tubesheet, seawater liner repair
• Matching filler for Gr1 base; undermatching (softer) filler for Gr2/Gr3 where ductility > strength
• Explosive cladding interlayer (Ti-steel transition) — absorbs impact, prevents interface cracking
• Ultra-clean weld pool with proper argon purge — no post-weld brittlement from interstitials

Rule of thumb: if the joint is corrosion-driven, not strength-driven → ERTi-1. If design stress needs Gr2/Gr5 strength → match the filler to the base + WPS, don't "upgrade" to Gr1 blindly.

Stock Scope (Honest)

Honest line: common TIG diameters (1.6/2.4/3.2mm) and 1.2mm MIG move fast. Custom spool weight / D300+ / F67 medical chain = PO-fronted, not ghost shelf.

Chemistry — ERTi-1 Filler vs B863 Gr1 Base

The gap is oxygen + hydrogen. That is why "Gr1-ish" base wire is not a drop-in for ERTi-1 in a code weld.

Mechanical Reference (Annealed)

MTC carries measured chemistry + tensile per lot. Weld strength is governed by WPS/PQR, not by the rod brochure number.

Welding Reality — What Makes ERTi-1 Weld Clean

• Shielding: 99.995% Ar min; DCEN for TIG, DCEP for MIG
• Back purge mandatory until weld cools below ~427°C (800°F)
• Trailing shield recommended for open-position titanium joints
• Wire surface: pickled/bright, no oil, no drawing lube residue
• Color check: straw/blue = interstitial pickup; silver = clean. Blue bead is a rejection signal, not a cosmetic issue
• Store sealed; open only at the feeder. Moisture + dust = porosity

Diameter / Process Quick Map

Traceability & Inspection

• EN 10204 3.1, mill-authorized IR — chemistry (interstitials called out) + tensile + lot No.
• Spool/bundle tag: AWS class + diameter + lot/heat + manufacturer ID
• PMI / surface cleanliness check on PO
• 3.2 (SGS/BV/TÜV) witness PO-fronted, not back-signed
• Lot-to-ingot traceability; no relabel of B863 base as ERTi-1 without filler-class cert

Packaging for Weld Wire (Non-Negotiable)

• Vacuum-sealed pouch / aluminium foil + desiccant
• D200/D300 plastic spool, no steel contact
• TIG rods in sealed kraft + PE tube, ends capped
• Outer: plywood case / carton, "DRY / NO OIL / ARGON-CLEAN" label
• Pre-ship photo: spool face + lot tag + seal integrity

Enquiry Template (Copy-Paste for Welding Buyers)

Filler class: ERTi-1 (AWS A5.16 rev ___) / ASTM B863 Gr1 ___
Process: GTAW / GMAW / PAW ___
Diameter: ___ mm
Package: straight 914/1000mm / D200 / D300 / coil ___
Weight: 5kg / 10kg / per coil ___
Base metal: Gr1 / Gr2 / clad / other ___
WPS/PQR: attached? Y/N   (or WPS class required ___)
Shielding: Ar purity ___%, back purge Y/N
Surface: bright pickled / as-drawn cleaned
Cert: 3.1 / 3.2 (TPI: ___)
Qty: ___ spools / ___ kg
Incoterm: EXW Baoji / FOB Shanghai / DAP ___

FAQ — Gr1 / ERTi-1 Welding Wire Stock

Q1: Is "Gr1 wire" the same as ERTi-1?
A: No. B863 Gr1 = base/material wire; ERTi-1 = AWS A5.16 filler classification with tighter O/H ceilings. Code welds cite ERTi-1 — PO must say so.

Q2: Which diameter for TIG pipe repair?
A: 1.6mm thin wall; 2.4mm general; 3.2mm heavier section. Match to amperage + joint prep, not "thicker is safer".

Q3: Can ERTi-1 weld Gr2 base?
A: Yes — undermatching filler (softer deposit). Acceptable where WPS allows; strength governed by PQR, not rod grade alone.

Q4: Why blue weld bead = problem?
A: Color = oxygen/nitrogen pickup. Silver/straw = clean; blue/purple = interstitial contamination, re-check purge + wire cleanliness.

Q5: MTC real interstitials?
A: Yes — 3.1 lists O/N/H/C/Fe measured, not just "complies". That is what WPS auditors want.

Q6: Spool or straight rod?
A: MIG/auto = spool; field TIG = straight 914/1000mm. Don't run straight rod through a MIG feeder.

Q7: Medical F67 wire?
A: Industrial Gr1/B863 ≠ implant F67 chain. Medical path = separate PO, F67/F136 docs, clean-room pack.

Q8: Explosive cladding use?
A: ERTi-1 1.5–2.0mm coil is standard interlayer — ductility absorbs clad shock, prevents delamination.

Q9: Dispatch?
A: Common TIG/MIG sizes same-week after PO + lot confirm. Custom spool/D300+/F67 PO-fronted lead quoted honest.

Q10: Trial lot?
A: 1 spool / 5kg TIG tube from current lot, deductible from bulk PO — qualify the weld, not just the price.

Request a Quote

Email: sales@[yourdomain].com

Send AWS class + Ø + process + package + WPS note. Reply in 24h: lot No., EXW/FOB price, cert type, dispatch date.

About: Baoji Titanium Valley welding-consumable stockist. Gr1 / ERTi-1 titanium welding wire — AWS A5.16 / ASTM B863, TIG rod + MIG spool, bright-pickled, argon-clean, EN 10204 3.1 lot-traceable. We do not relabel base wire as filler. Name the WPS, get the right classification, sealed clean, dispatched on the PI date.