Covers high purity nickel bar in four grades: Ni200 (UNS N02200), Ni201 (UNS N02201), N4 (≥99.9%) and N6 (≥99.5%). Annealed bar in 8 mm, 10 mm, 12 mm and 20 mm is held in stock; other diameters are produced from 3 mm to 300 mm per drawing, with lengths to 6000 mm and surfaces from black to cold drawn bright. The mill in Changzhou, Jiangsu produces the material from melt to finished bar, in operation since 2002, and each lot ships with a mill test certificate recording its actual composition and mechanicals.

• Four grades on one bar: Ni200/Ni201 (UNS) plus N4 (≥99.9%) and N6 (≥99.5%) in the high-purity classes.

• 8-20 mm annealed bar held in stock for immediate dispatch.

• Diameters to 300 mm produced to drawing, with cut-to-length and surface options.

• In-house melt, forming, annealing and testing on one site.

• Mill certificates ship with every lot, tracing to the heat it came from.

Hexagonal and square sections are produced to the same tolerances, inside the pure nickel bar products program.

All four grades are melted to their own specification, forged, rolled, annealed and finished at the Changzhou plant. Control points follow the material: spectral composition analysis at the melt, tensile and hardness testing after heat treatment, and a final inspection of dimensions and surface. The lot number on the certificate traces back to the heat it came from.

Ni200, Ni201, N4 and N6 are commercially pure nickel at 99.0-99.9%, not alloys, and the choice among them is a purity question. N4 (≥99.9%) and N6 (≥99.5%) sit in the GB/T 4435 high-purity classes for parts that need lower total impurities; Ni200 (≥99.2%) and Ni201 (≥99.0%, C ≤0.02%) cover general and higher-temperature service. Purity drives the ductility of the finished bar and keeps electrical and thermal performance stable in service, and corrosion behaviour in caustic and reducing media follows the grade selected. Duties that need alloying, such as resistance heating elements, high-temperature strength beyond nickel's capability, or seawater pitting resistance, are met by other material families.

Each batch starts from analyzed electrolytic nickel. The heat is melted under controlled atmosphere, cast and hot worked to diameter, then annealed, straightened and surface finished. Composition is verified at the melt, mechanical properties after heat treatment, and straightness and surface at final inspection. The mill test certificate (EN 10204 3.1) records the actual composition and mechanicals of the shipped lot for incoming inspection, and N4 is documented at 99.9%.

Applications that hold: chemical and process equipment handling caustic and reducing media, electronic and vacuum-device components, magnetostrictive transducers and ultrasonic hardware that use nickel's ferromagnetic behaviour, and R&D work that needs certified purity. Excluded duties: transformer, motor and generator cores, which belong to silicon steel applications, and elevated-temperature structural applications selected on the strength of a boiling point, which is a physical constant rather than a service limit. Above about 315°C, carbon in Ni200 can precipitate at grain boundaries and embrittle the part, so sustained high-temperature service specifies Ni201 with carbon limited to 0.02%.

• Chemical and process equipment for caustic and reducing media.

• Electronic and vacuum-device components requiring documented purity.

• Battery connection parts in the strip and wire forms of the nickel family.

• Magnetostrictive transducers and ultrasonic hardware.

• Research and development where certified purity supports repeatable results.

Bar is customized on grade, size and surface. Brand: DZX. Origin: Changzhou, Jiangsu, China. Grades: Ni200 / Ni201 / N4 / N6. Custom diameters 3-300 mm, lengths to 6000 mm, cut-to-length service, and surfaces from black to cold drawn bright. Send the drawing and the mill confirms grade, purity class and delivery before scheduling.

Annealed bar: tensile strength ≥462 MPa, 0.2% yield strength ≥148 MPa, elongation ≥35%, hardness 90-120 HB. Physical constants: density 8.908 g/cm³, melting point 1435-1446°C, thermal conductivity (Ni200) 70.2 W/m·K, electrical resistivity 0.096 μΩ·m, coefficient of thermal expansion ≈13.3 µm/m·K (typical), ferromagnetic below the Curie point of 358°C.

Purity and mechanicals are documented per lot: mill test certificates (EN 10204 3.1) travel with every shipment, with ASTM B160 and GB/T 4435 references for incoming inspection. Samples and records are retained for each heat.

Ni200/Ni201: ASTM B160 (Nickel Rod and Bar), UNS N02200/N02201. N4/N6: GB/T 4435. Export documentation per EN 10204 3.1.

Material data references ASTM B160; corrosion and physical property data reference ASM Specialty Handbook: Nickel, Cobalt, and Their Alloys and standard engineering sources; batch-level composition and mechanicals are verified against mill test certificates and in-house inspection records.

Grade and purity selection are supported against the application, and documentation is prepared in the format incoming inspection requires. Development projects can start from sample bar so the specification is fixed on production material before volume orders.

Bar is supplied in bundles with protective wrapping, packed in export wooden cases, and labeled with grade and size. In-stock diameters dispatch in 3-7 days; standard production runs 7-15 days, and custom sizes 15-30 days per drawing. Worldwide shipping is quoted per destination with the documents the shipment requires. Payment by L/C, T/T, Western Union or MoneyGram.

DZX Alloy has melted and processed nickel-based material in Changzhou, Jiangsu since 2002, running ISO 9001 and SGS quality systems across 10,000 t/yr of capacity and exporting to 60+ countries. Stock diameters are held for immediate dispatch while production continues for everything else, and the four grades on this page are documented as made: N4 at 99.9%, Ni200 at 99.2%.

Send the drawing and required grade for a confirmed quote on size, purity class and delivery.

Q: What is the brand name of this product?
A: The brand name is DZX.

Q: Where is this product manufactured?
A: At our mill in Changzhou, Jiangsu, China.

Q: What is the composition of the product?
A: Commercially pure nickel: Ni200 (≥99.2%), Ni201 (≥99.0%), N6 (≥99.5%) or N4 (≥99.9%) by grade. These are pure nickel grades, not alloys, and the mill certificate records the actual lot.

Q: What does "high purity" mean here?
A: N4 ≥99.9% and N6 ≥99.5% are the high-purity classes under GB/T 4435. Ni200 and Ni201 cover general and higher-temperature service at ≥99.2% and ≥99.0%.

Q: What is your production capacity?
A: 10,000 t/yr of nickel-based material, melted, produced and tested on one site.

Q: What are the common applications?
A: Chemical and process equipment in caustic and reducing media, electronic and vacuum-device components, battery connection parts, magnetostrictive and ultrasonic devices, and documented-purity R&D projects.

Q: What documents come with the shipment?
A: EN 10204 3.1 mill test certificates recording actual lot composition and mechanicals, with ASTM B160 / GB/T 4435 references for incoming inspection.

Q: What is the minimum order quantity?
A: MOQ is 10 kg.

Q: How is pricing determined?
A: Quoted by grade and quantity once the specification is received.

Q: What payment terms are accepted?
A: L/C, T/T, Western Union and MoneyGram.