Nickel Wire — 镍丝 / 镍丝

Product Overview

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

Nickel Wire — 镍丝 / 镍丝

{nickel_wire_filler} Nickel wire is both a fabrication feedstock and a welding consumable — pure-nickel wire resists caustic and alkaline service, while ERNi-1 welding wire joins Ni200 / Ni201 cleanly and is the right filler where a caustic-resistant weld matters. We stock Ni200 / Ni201 and Monel 400 wire in Baoji, on spool or straight, with full mill certificate, and we keep {nickel_fastener_galling} fastener wire and {nickel_bar} bar from the same heats where traceability demands it. This guide covers which grade, which standard, where wire fails, and how to write an RFQ that returns a usable quote.

The reason a product guide beats a catalogue is simple: the seven nickel families (tube, plate, bar, wire, fittings, flange, fasteners) are not independent. A caustic line is plate shells, tube bundles, bar-made flanges and B366 fittings from one grade system — specifying them consistently is what keeps a plant leak-free for decades. Below, this product gets its own section, then the shared failure map and one selection rule. For the other six families see our nickel products hub nickel products hub.

At a Glance: Nickel Wire

1. What 镍丝 / 镍丝 Actually Is (and Why Buyers Confuse It)

Nickel wire is drawn product in commercially pure nickel (Ni200 / Ni201) or Monel 400, supplied on spool or as straight lengths, and used for welding, weaving, binding and heating elements. As a welding consumable, pure nickel is joined with ERNi-1 (AWS A5.14). The grade — not the word “nickel” — decides the service, exactly as with every other nickel form, and the wire must match the {nickel_tubes} tube or {nickel_plate_std} plate it is welded to.

2. Grade Quick-Reference — Ni200, Ni201, Monel 400

For the full nickel-family picture — Inconel, Hastelloy, Monel side by side — see our our nickel alloy guide. For the Ni200-vs-Ni201 caustic decision, see this comparison. If you also run titanium lines, our titanium titanium guide explains where each metal owns the service.

3. How to Read a Nickel Wire RFQ

A usable quote starts with a usable request. Put these on the enquiry so we return price and lead time instead of questions:

• Grade — Ni200, Ni201, Monel 400 or ERNi-1.
• Spec — ASTM B164 or AWS A5.14 (ERNi-1).
• Form — spool, straight, cut length.
• Size — diameter, spool weight, length.
• Finish — bright, pickled, cleaned for welding.
• Certificate — EN 10204 3.1 / weld cert.
• Service — medium, welding process.
• Packing — sealed, dry, port.

4. Nickel Wire Forms, Sizes & What to Specify

5. Standard & Certification You Receive

Nickel wire ships with an {nickel_sheet_mtc} EN 10204 3.1 certificate, heat-number traceable to the melt, to ASTM B164; ERNi-1 welding wire is supplied to AWS A5.14 with the weld deposit chemistry documented. Keep welding wire sealed and dry — nickel oxides readily and moisture drives porosity, so we pack it in moisture-barrier foil and you should only open it at the point of use.

6. The “Nickel Is Just Expensive Steel” Myth

The trap is treating nickel wire like copper or steel wire. Nickel work-hardens and its stubborn oxide (NiO) must be cleaned or welds will not fuse; and as always the grade decides the medium — ERNi-1 is the filler for pure nickel, not a random stainless wire, or you lose the caustic resistance of the joint. Our {nickel_wire_filler} wire classification guide explains the filler families so the spool that reaches the job is the right one.

7. Where Nickel Wire DOES Fail — Limitation & Failure Conditions

Wire limits follow the alloy, not the thin shape. The same limitation table applies to every nickel product form — read it before you specify, then return to welding notes.

Two joint-specific notes. Pick the gasket for the actual medium, and avoid coupling nickel directly to a much nobler metal (graphite, platinum, passive titanium in oxidising service) without isolation — nickel can become the anode. Where the service is oxidising or mixed acid, step to Hastelloy C-276 or titanium rather than pushing nickel past its limit.

8. Choose by Service, Not by Habit

Choose this if:

• Caustic / alkaline woven wire or filler → Ni200 / Ni201 ({ni200_vs_ni201}).
• Welding Ni200 / Ni201 → ERNi-1 filler (AWS A5.14).
• High-temperature caustic wire → Ni201.

Choose that if:

• Seawater or HF-exposed wire → Monel 400 ({monel400_pump}).
• Brine, desalination mesh → Monel 400.
• Oxidising or mixed acid → step to Hastelloy C-276, not nickel.
• Strength plus corrosion wire → Monel K500 ({monel_k500_vs_400}).

9. Common Procurement Mistakes

• Welding nickel with the wrong filler — use ERNi-1 for pure nickel, not stainless wire.
• Skipping oxide cleaning before welding — NiO blocks fusion, causes lack-of-fusion.
• Ni200 in hot caustic wire — graphite embrittlement; use Ni201.
• Storing welding wire unsealed — moisture drives porosity.
• No cert on weld consumable — audit failure.

10. Lead Time, MOQ & Export Packing

{nickel_wire_filler} Ni200 / Ni201 and Monel 400 wire are held in Baoji on spool or straight; ERNi-1 welding wire is stocked. Non-standard diameters lead a short time. Small MOQ applies — a few kilograms is a normal order, and we cut straight lengths to the exact size your jig needs.

11. Nickel vs the Alternatives — When NOT to Specify Nickel

12. Welding & Joining Note

Nickel and Monel weld readily by GTAW / GMAW / SMAW with the correct filler — ERNi-1 ERNi-1 for pure nickel, ENiCu-7 for Monel — but the stubborn NiO oxide must be cleaned first or fusion fails, and welding wire must be kept dry to avoid porosity. For tube and pipe we follow a qualified WPS WPS with argon back-purge; for bar and plate we supply the matching wire and forming notes so the weld stays in grade. Always confirm the filler matches the base grade on the RFQ.

13. Reading the Mill Test Certificate

Every lot ships with an EN 10204 3.1 EN 10204 3.1 MTC: grade and UNS, heat number, chemistry, tensile result, and the ASTM specification. Keep the heat number — it is your traceability link from the finished part back to the melt, and it is what lets an auditor confirm the grade years later. For project work ask for PMI or UT on the order so the certificate matches the actual piece.

14. Why a Baoji Titanium-Valley Stockist

We hold nickel and titanium together in Baoji Baoji, close to China’s Titanium Valley supply base, which means we can cut, forge and kit a mixed nickel line from one shipment instead of chasing several mills. That shortens lead time from mill-weeks to days and keeps one grade logic, one certificate pack, and one point of contact for your whole order. Our nickel buying buying guide explains the stock-holder model for overseas buyers.

15. A 5-Minute RFQ Template

Copy this into your enquiry and fill the blanks — it returns a quote, not a guessing game:

• Product: Nickel Wire, grade ___
• Spec: ___ (ASTM / ASME)
• Size: ___ ; quantity ___
• Condition / finish: ___
• Certificate: EN 10204 3.1, UT/PMT if needed
• Service: medium ___, concentration ___, temperature ___, pressure ___
• Destination & packing: port ___, VCI / crate

Email it to [email protected] — we confirm stock and pricing within 24 hours, and can kit the whole line from one Baoji shipment so grade and certificate stay consistent end to end.

16. FAQ — Nickel Wire

Which nickel wire for welding Ni200 / Ni201?

Use ERNi-1 filler to AWS A5.14 for pure nickel; it deposits a caustic-resistant weld. Clean the oxide first and back-purge where the code requires it.

Ni200 or Ni201 wire for caustic service?

For wire in caustic above about 315 degC use Ni201 to avoid graphite embrittlement of Ni200; Ni200 suits lower-temperature alkaline duty.

Can nickel wire resist hydrofluoric acid?

Monel 400 wire resists HF across concentrations; pure nickel also resists HF. Exclude mercury and keep HF de-aerated where practicable.

Why are my nickel welds porous?

Usually surface oxide or moisture. Clean the NiO layer, keep welding wire sealed and dry, and back-purge pipe welds with argon.

What certificate comes with the wire?

EN 10204 3.1 for solid wire to ASTM B164; AWS A5.14 weld cert for ERNi-1 consumable, with deposit chemistry.

Do you export worldwide?

Yes. Baoji stock to global ports, sealed and dry packed, with full MTC and shipping documents.

Can wire be kitted with other nickel products?

Yes. We kit a consistent line (Ni201 or Monel plate, tube, fittings, fasteners, wire) from one shipment so grade and certificate match.

Summary: One Rule Beats a Catalogue

If you take one thing from this guide, take this: specify the grade for the fluid, not just the word “nickel,” and treat every joint as a system. Ni200 / Ni201 for caustic and reducing service (Ni201 above ~315°C), Monel 400 for seawater, brine and hydrofluoric acid — and never nickel in oxidising acid, mercury, or wet chlorine. Send the checklist above to [email protected] or use the inquiry form — we confirm stock and pricing within 24 hours, and can kit plate, tube, bar, wire, fittings, flange and fasteners for your whole line from one Baoji shipment.