Direct-from-manufacturer specialty metallurgy components custom-machined and certified according to ASTM, ASME, and ISO standards for New Zealand commercial and engineering sectors.
New Zealand’s unique geographical features, thriving dairy economy, clean energy initiatives, and emerging commercial aerospace industries create distinct, high-specification demands for corrosion-resistant nickel tubing.
New Zealand is a global pioneer in geothermal energy, generating more than 17% of its electricity from deep subsurface steam reservoirs located across the Taupō Volcanic Zone, Wairakei, Ohaaki, and Ngāwhā. These extreme subterranean environments present formidable metallurgical challenges, including severe hydrogen sulfide (H2S) stress corrosion cracking, high-temperature brine, and abrasive silica scale. Baoji Yunjie provides specialized heavy-wall seamless nickel alloy tubes—notably Inconel 625 (UNS N06625), Incoloy 825 (UNS N08825), and Hastelloy C276 (UNS N10276)—engineered to withstand aggressive subterranean condensates and chloride pitting at temperatures exceeding 320°C.
New Zealand exports over 95% of its milk production. Automated Clean-In-Place (CIP) loops at major processing facilities in Waikato and Canterbury utilize concentrated hot caustic soda (NaOH) and nitric acid solutions. Pure Nickel 200 (UNS N02200) and Nickel 201 (UNS N02201) seamless sanitary tubing prevent caustic embrittlement, ensuring zero cross-contamination, smooth sanitary finishes, and compliance with stringent MPI food standards.
Surrounded by the Pacific Ocean and Tasman Sea, New Zealand’s major coastal hubs (Auckland, Tauranga, Lyttelton, Marsden Point) face intense saline corrosion. Our Monel 400 (UNS N04400) and high-performance nickel-copper/nickel-chromium alloy pipes serve commercial marine piping, seawater desalination, boat thrusters, heat exchangers, and offshore mooring instrumentation with zero bio-fouling and exceptional pitting resistance.
With orbital launch facilities situated on the Mahia Peninsula and a burgeoning aerospace tech sector, Kiwi innovators require ultra-lightweight, high-temperature propulsion lines. Yunjie manufactures thin-wall Inconel 718 and Nickel 200 precision tubing capable of sustaining cryogenic fuel transfers and high-temperature exhaust dynamics in high-thrust rocket engines.
Across the central North Island timber belts (Kawerau, Tokoroa), heavy bleaching and chemical recovery cycles require robust alloy piping to resist sulfuric acid, chlorine dioxide, and high alkaline black liquor. Simultaneously, New Zealand's national commitment to a net-zero carbon economy has accelerated investments in green hydrogen electrolyzers. Our nickel alloy pipes, porous mesh electrodes, and custom tubular manifolds serve as the baseline conduit materials for PEM and alkaline water electrolysis systems across Taranaki and Southland demonstration hubs.
All seamless and welded nickel pipes exported to Auckland, Wellington, Christchurch, and Tauranga are manufactured in strict compliance with international manufacturing and safety protocols.
| Alloy Grade | UNS / DIN Standard | Applicable Standards | Size Range (OD x WT) | Primary NZ Application |
|---|---|---|---|---|
| Nickel 200 / 201 | UNS N02200 / N02201 W.Nr. 2.4066 / 2.4068 |
ASTM B161, ASTM B163, ASTM B725, ASME SB-161 | OD 3.0mm – 219mm WT 0.5mm – 20mm |
Dairy caustic cleaning, chemical evaporators, alkaline hydrogen electrolysis cells. |
| Monel 400 / K500 | UNS N04400 / N05500 W.Nr. 2.4360 / 2.4375 |
ASTM B165, ASTM B127, ASTM B730, ASME SB-165 | OD 6.0mm – 325mm WT 0.8mm – 25mm |
Marine cooling systems, seawater intake lines, coastal industrial heat exchangers. |
| Inconel 600 / 625 | UNS N06600 / N06625 W.Nr. 2.4816 / 2.4856 |
ASTM B167, ASTM B444, ASTM B705, ASME SB-444 | OD 4.0mm – 273mm WT 0.6mm – 18mm |
Geothermal high-pressure steam, aerospace propulsion lines, vacuum furnace components. |
| Incoloy 800 / 825 | UNS N08800 / N08825 W.Nr. 1.4876 / 2.4858 |
ASTM B163, ASTM B423, ASTM B704, ASME SB-423 | OD 8.0mm – 219mm WT 1.0mm – 15mm |
Thermal power generation, sulfuric acid piping, pulp and paper chemical digesters. |
| Hastelloy C276 | UNS N10276 W.Nr. 2.4819 |
ASTM B622, ASTM B619, ASME SB-622 | OD 6.0mm – 168mm WT 0.8mm – 12mm |
Severe geothermal H2S environments, chemical flue gas desulfurization (FGD). |
Every meter of nickel tube undergoes hydrostatic pressure testing up to 30 MPa, automated eddy current testing, ultrasonic flaw detection, and full Positive Material Identification (PMI) to ensure flawless seam integrity.
Supplied in bright annealed (BA), electropolished (EP), pickling, or mechanically polished finishes with inner surface roughness down to Ra < 0.4 μm for critical sanitary dairy and semiconductor installations.
Full documentation pack provided with every shipment: EN 10204 3.1 / 3.2 Material Test Certificates (MTC), chemical composition analysis, mechanical tensile/yield reports, and third-party inspection (SGS/TUV) validation.
Equipped with state-of-the-art cold-rolling mills, vacuum annealing furnaces, continuous drawing lines, and computerized precision machining centers, Yunjie delivers end-to-end metallurgical solutions. From initial raw material ingots to finished, high-tolerance nickel tubes, pipes, fasteners, and vacuum thermal equipment, our manufacturing ecosystem provides global procurement partners with unmatched price-to-performance stability and stringent quality guarantees.
“Quality ensures survival, efficiency drives growth, and continuous improvement earns customer satisfaction.”
Yunjie has continuously upgraded its quality systems for more than 30 years.
High-End Manufacturing and Metallurgy Industry Solutions
Energy and Nuclear Industry Solutions
Chemical and Marine Engineering Industry Solutions
Electronics and Semiconductor Industry Solutions
Customizable Vacuum Furnace Liners
Aerospace Industry Solutions
Leveraging the China–New Zealand Free Trade Upgrade Protocol, Baoji Yunjie guarantees expedited customs clearance, zero tariff friction, and consolidated sea/air logistics.
Scheduled containerized (FCL) and consolidated (LCL) sea freight departures from Shanghai, Ningbo, and Qingdao directly reach Port of Auckland, Port of Tauranga, and Lyttelton (Christchurch) within 14 to 21 transit days.
All nickel tubes and pipes are protected with end caps, individual plastic sleeves, waterproof wrapping, and robust fumigated wooden cases to prevent salt-fog contamination and mechanical impact during maritime shipping.
Our engineering division supports custom CNC bending, beveling, threading, flanging, and precision cut-to-length services to minimize on-site assembly time for New Zealand engineering contractors.
Our Inconel 625 and Hastelloy C276 seamless pipes feature high molybdenum and chromium content with low carbon, delivering near-zero corrosion rates in severe sour gas (H2S), chloride brine, and high-pressure steam environments found in Rotorua and Taupō.
Yes. In addition to mass mill runs, we maintain dedicated precision drawing lines capable of processing custom small-quantity batches of thin-wall capillary tubing and custom alloy profiles for aerospace and university research labs in NZ.
Every shipment comes with EN 10204 3.1 Material Test Reports. We also cooperate with international inspection bodies such as SGS, Bureau Veritas, TUV, and Lloyd's Register for witness testing, dimensional validation, and ultrasonic NDT certification.
Standard stocked specifications ship within 3 to 7 business days. Custom engineered drawing and rolling runs typically require 15 to 25 production days, followed by direct container ocean freight to New Zealand ports.
Explore our full line of industrial nickel tubes, sheets, meshes, crucibles, and titanium alloy components crafted in Baoji, China for demanding New Zealand engineering projects.
