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High purity nickel bar in Ni200, Ni201, N4 (≥99.9%) and N6 (≥99.5%), annealed and stocked in 8-20 mm, with other diameters from 3 mm to 300 mm produced per drawing. Purity and mechanicals are recorded heat by heat and carried on the mill certificate that ships with the lot.
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 the purity of each heat is recorded on the certificate that ships with the lot.
Four grades on one bar: Ni200/Ni201 (UNS) plus N4 (≥99.9%) and N6 (≥99.5%) in the high-purity classes.
Purity recorded heat by heat, with the lot number carried through to the certificate.
In-house melt, forming, annealing and testing on one site.
Stock diameters held annealed in 8-20 mm; other sizes to 300 mm produced to drawing.
Samples and records retained for each heat.
| Form | Round Bar / Rod |
| Grades | Ni200 (UNS N02200) / Ni201 (UNS N02201) / N4 / N6 |
| Standard In-Stock Diameters | 8 mm / 10 mm / 12 mm / 20 mm |
| Other Diameters | 3-300 mm per drawing |
| Length | Per drawing (bar program supports up to 6000 mm) |
| Surface | Black / Peeled / Polished / Cold Drawn (Bright) |
| Temper | Annealed (standard) |
| Density | 8.908 g/cm³ |
| Tensile Strength (min) | 462 MPa (annealed) |
| Yield Strength 0.2% (min) | 148 MPa (annealed) |
| Elongation (min) | 35% |
| Melting Point | 1435-1446°C |
Hexagonal and square sections are produced to the same tolerances, inside the pure nickel bar products program.
| Density | 8.908 g/cm³ |
| Crystal Structure | Face-Centered Cubic (FCC) |
| Magnetic Properties | Ferromagnetic (Curie point 358°C) |
| Corrosion Resistance | Strong in caustic alkalis and reducing media |
| Purity by Grade | N4 ≥99.9% / N6 ≥99.5% / Ni200 ≥99.2% / Ni201 ≥99.0% |
| Electrical Performance | Stable low-resistance performance (resistivity 0.096 μΩ·m) |
N4 (≥99.9%) and N6 (≥99.5%) are the GB/T 4435 high-purity classes, specified where the total of the remaining elements matters to the part. Ni200 (≥99.2%) and Ni201 (≥99.0%, C ≤0.02%) are the UNS grades made to ASTM B160 for general and higher-temperature service. All four are commercially pure nickel: what separates them is the purity class and the carbon limit, and the certificate names the class the heat was made to. Grade chemistry across the wider family is set out in the pure nickel series.
Each heat starts from analyzed electrolytic nickel, is melted under controlled atmosphere, cast and hot worked to diameter, then annealed, straightened and surface finished. Melting, forming, heat treatment and testing all happen at the plant, so the material that carries the heat number is the material in the case.
Control points follow the material. Spectral analysis of the heat fixes the composition before casting; tensile and hardness testing follow heat treatment; dimensional and surface inspection close the route. The mill test certificate (EN 10204 3.1) carries the heat number and the results for that heat, and N4 is documented at 99.9%. Samples and inspection records are retained per heat.
Two order routes reach the same bar. A UNS designation (Ni200, Ni201) brings the composition limits of ASTM B160; a GB/T 4435 purity class (N4, N6) brings the limits of that standard. The limits applied are what differ, so the order should name the route the receiving inspection will check against. Export orders most often specify the UNS grade; parts built to a domestic standard name the GB class. Both routes run on one production line and ship with one document pack.
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.
Transformer and motor cores are built from silicon steel; duties that call for alloying sit with the nickel alloy families.
Orders are specified by grade and purity class as well as by size. Brand: DZX. Origin: Changzhou, Jiangsu, China. Grades: Ni200 / Ni201 / N4 / N6. Diameters 3-300 mm, lengths to 6000 mm, cut-to-length service, and surfaces from black to cold drawn bright. Send the drawing with the purity class required, and the offer names the class the heat will be made to and the delivery that follows.
| Grade | Ni+Co (min) | C (max) | Cu (max) | Fe (max) | Mn (max) | Si (max) | S (max) |
|---|---|---|---|---|---|---|---|
| N4 | 99.9% | 0.01% | 0.015% | 0.04% | 0.002% | 0.03% | 0.001% |
| N6 | 99.5% | 0.10% | 0.10% | 0.10% | 0.05% | 0.10% | 0.005% |
| Ni201 (UNS N02201) | 99.0% | 0.02% | 0.25% | 0.40% | 0.35% | 0.35% | 0.01% |
| Ni200 (UNS N02200) | 99.2% | 0.15% | 0.25% | 0.40% | 0.35% | 0.35% | 0.01% |
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 class are selected 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, each case marked with the grade and its heat number. Stock diameters dispatch in 3-7 days, standard production runs 7-15 days, and sizes beyond stock in 15-30 days per drawing. The document pack travels with the goods. 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 and exporting to 60+ countries. Heat numbers, test results and retained samples stay with the mill that made the bar, covering N4 at 99.9% and Ni200 at 99.2%.
Send the part specification or the drawing; the offer names the purity class, the size and the delivery that follows.
Q: What is the brand name of this product?
A: The brand name is DZX.
Q: Where is this product manufactured?
A: At the 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. All four are pure nickel grades, and the mill certificate records the composition of your 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 R&D projects that need certified purity.
Q: What documents come with the shipment?
A: EN 10204 3.1 mill test certificates recording the composition and mechanicals of the lot, 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.
E-mail: dzx@dlx-alloy.com
Mobile: +8619906119641
Tel: 0086-19906119641
WhatsApp: +86-19906119641
Add: NO.32 West Taihu Road, Xinbei District, Changzhou, Jiangsu
