Nickel Bar & Rod — 镍棒 / 镍棒

Product Overview

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

Nickel Bar & Rod — 镍棒 / 镍棒

A {nickel_bar} nickel bar is the starting stock for flanges, valve bodies, pump shafts and machined parts that must survive caustic, seawater or HF. We stock Ni200 / Ni201 and Monel 400 bar in Baoji, cut to length and shipped with full mill certificate, and we forge it into {nickel_flange_page} flanges and {nickel_fastener_galling} fasteners so the whole component stays in grade. This guide covers which grade, which standard, the work-hardening reality of machining nickel, where bar 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 Bar & Rod

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

Nickel bar is long, solid product in commercially pure nickel (Ni200 / Ni201) or Monel 400, supplied round, square, hex or forged, and later machined into flanges, shafts and components. It is the raw form behind most nickel fabricated parts. As everywhere in nickel, the grade — not the word “nickel” — decides the service, so we match the bar to the {nickel_tubes} tube and {nickel_fitting_forming} fittings it will be bolted 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 Bar & Rod 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 K500.
• Spec — ASTM B160 (Ni) or B164 (Monel).
• Shape — round / square / hex / forged.
• Size — diameter or section, length, quantity.
• Condition — annealed, hot-finished, forged.
• Certificate — EN 10204 3.1 MTC with heat number.
• Service — medium, temperature, load.
• Packing — VCI, crate, port.

4. Nickel Bar & Rod Forms, Sizes & What to Specify

5. Standard & Certification You Receive

Every {nickel_rod_welding} bar ships with an EN 10204 3.1 mill test certificate, heat-number traceable to the melt, to ASTM B160 (nickel) or B164 (Monel). Forgings intended as flanges or valve parts can be supplied to B564 with the appropriate ultrasonic examination on request, which is what pressure-equipment codes expect for critical forgings.

6. The “Nickel Is Just Expensive Steel” Myth

The trap is machining nickel like steel. Nickel and Monel {nickel_bar_machining} work-harden fast — dull tools and light feeds just smear the surface and make the next pass harder, so the part grows a hardened skin that wrecks the tool life. The other trap is grade: Ni200 in hot caustic embrittles, and Monel is the wrong bar for oxidising acid. Specify the grade and machine it the nickel way; our {ni_rod_sel} rod selection guide covers the key parameters buyers miss.

7. Where Nickel Bar & Rod DOES Fail — Limitation & Failure Conditions

Bar limits follow the alloy, not the round shape. The same limitation table applies to every nickel product form — read it before you specify, then return to machining 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 machined parts → Ni200 / Ni201 ({ni200_vs_ni201}).
• High-temperature caustic components → Ni201.
• Forged flange or valve blanks → Ni200 / Ni201 or Monel 400.

Choose that if:

• Seawater or HF-wetted shafts and parts → Monel 400 ({monel400_pump}).
• Pump / propeller shafts needing strength → Monel K500 ({monel_k500_vs_400}).
• Oxidising or mixed acid parts → step to Hastelloy C-276, not nickel.
• Brine, desalination hardware → Monel 400.

9. Common Procurement Mistakes

• Machining nickel with dull tools and light feeds — work-hardening ruins the surface.
• Ni200 in hot caustic — graphite embrittlement over time; use Ni201.
• Monel bar in oxidising acid — it fails; use titanium / Hastelloy.
• Mercury contact on Monel — absolute exclusion.
• No MTC on a pressure-part bar — non-compliant at audit.

10. Lead Time, MOQ & Export Packing

{nickel_bar_thermal} Ni200 / Ni201 and Monel 400 bar are held in Baoji and cut to length; forged blocks and Monel K500 lead a few weeks. Small MOQ applies — single bars or small lots are fine, and we can pre-machine to a rough contour so your shop only does the finish pass. Our {nickel_bar_std} bar standard guide lists the common size envelope.

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 Bar & Rod, 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 Bar & Rod

Ni200 or Ni201 bar for hot caustic parts?

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

How do I machine nickel bar without work-hardening?

Use sharp tools, rigid setups, heavy feeds and moderate speeds; sulphured cutting fluid helps. Light, slow passes smear the surface and make the next cut harder. Monel K500 is age-hardened and harder still.

Monel 400 or K500 bar for a shaft?

Monel 400 for general corrosion service; Monel K500 where you also need high strength (pump or propeller shafts). K500 keeps Monel 400 corrosion resistance with roughly triple the yield.

Why did my Monel bar crack?

Usually mercury contact, moist aerated HF vapour, or stress in anhydrous ammonia. Monel owns seawater and HF but has hard exclusions; review the limitation table.

What certificate comes with the bar?

EN 10204 3.1 mill test certificate, heat-number traceable to the melt, to ASTM B160 or B164; B564 forging cert on request.

Do you export worldwide?

Yes. Baoji stock to global ports, with VCI protection, crating and full MTC and shipping documents.

Can bar be kitted with plate and fittings?

Yes. We kit a consistent line (Ni201 or Monel plate, bar-made flange, B366 fittings, fasteners) 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.