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Machinable pure nickel bar and rod in Ni200, Ni201, N4 and N6, supplied annealed for predictable cutting. Stock diameters 8-20 mm, other sizes 3-300 mm to drawing, with a machining test bar available on request so feeds, speeds and finish are proved before production quantities are ordered.
Machinable pure nickel bar and rod in Ni200 (UNS N02200), Ni201 (UNS N02201), N4 and N6 is supplied annealed, the condition that gives a uniform work-free structure and predictable cutting. Diameters of 8 mm, 10 mm, 12 mm and 20 mm are held in stock, with other sizes produced from 3 mm to 300 mm to drawing. A machining test bar can travel with the enquiry, so feeds, speeds and finish are checked on your own machine before production quantities are scheduled. A mill test certificate (EN 10204 3.1) is issued for each lot.
Nickel is specified for concentrated caustic alkalis, for reducing media and for electrochemical service, and those applications need no substitution in a machined part. Oxidizing acids such as nitric acid attack the metal, and aerated chloride or seawater service brings pitting risk, so those duties belong to a nickel alloy or another material family. Media and operating temperature are settled when the enquiry is placed, and the grade is selected against them.
| Form | Round Bar / Rod (hexagonal and square per drawing) |
| 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, and the surface states in the table, are produced under the pure nickel bar and rod program.
Annealed bar, so chip behaviour and finish hold from lot to lot.
A test bar can be run at your parameters before the production quantity is placed.
Four grades in one diameter range, all in the annealed temper.
Diameter and surface produced to the drawing.
Lot certificate (EN 10204 3.1) with every shipment.
Nickel cuts differently from steel and from free-machining brass. It is ductile, so the chip can run long and gummy, and sharp tooling, a positive rake angle and steady lubrication matter more than high cutting speeds. The soft, uniform annealed structure removes a variable a shop would otherwise have to dial out: bar from one heat cuts like bar from the next, which tells on an automated cycle or a tight tolerance. Turning and milling follow the same principle.
Qualifying a new material does not require a production quantity. A test bar cut from annealed stock, run at your feeds and speeds, shows chip formation and the finish that can be held before anything else is committed. Trial orders start at 10 kg, and the drawing-based quote names the grade and delivery date, so the specification that passed the trial is the specification that ships.
Carbon and purity separate the four grades. Ni200 (C ≤0.15%) is the general choice for chemical and mechanical components; Ni201 (C ≤0.02%) is the low-carbon grade for parts that run hot in service; N6 (≥99.5% Ni+Co) and N4 (≥99.9% Ni+Co) step up in purity where the specification is written around it. All four are supplied annealed in the stocked diameters, so the cutting behaviour a shop proves on one grade carries across the others. The grade map for the full pure nickel series sets out the chemistry side by side.
The surface state is chosen against the first machining operation. Black bar is the economical start where the part is machined all over; peeled or bright bar suits tight features and a clean start where little material is removed. Cold working raises strength as ductility falls, and heat treatment moves the balance back, so a part that needs specific final properties is planned from the as-supplied condition. Tolerance and finish are agreed against the drawing when the order is placed.
| 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% |
| Ni200 (UNS N02200) | 99.2% | 0.15% | 0.25% | 0.40% | 0.35% | 0.35% | 0.01% |
| Ni201 (UNS N02201) | 99.0% | 0.02% | 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, electrical resistivity 0.096 μΩ·m, thermal conductivity (Ni200) 70.2 W/m·K, ferromagnetic below the Curie point of 358°C.
Dimension and surface are gauged against the drawing before packing, and the heat is analysed for composition at the melt. The mill test certificate (EN 10204 3.1) issued with the lot records the composition and mechanical results for that heat.
Ni200/Ni201: ASTM B160 (Nickel Rod and Bar). N4/N6: GB/T 4435 (Nickel and Nickel Alloy Bars). Export documentation per EN 10204 3.1.
Material data references ASTM B160 and GB/T 4435; corrosion and machining guidance references the Nickel Institute, ASM Specialty Handbook: Nickel, Cobalt, and Their Alloys, and machinability handbooks for nickel alloys; batch-level composition is verified against mill test certificates and in-house inspection records.
Bar is supplied in cut lengths or full bars, wrapped against moisture, and packed in export wooden cases carrying the grade and heat number on the label. In-stock diameters dispatch in 3-7 days, standard production in 7-15 days, and sizes to drawing in 15-30 days. Freight is quoted per destination, and payment is by L/C, T/T, Western Union or MoneyGram.
Nickel-based material has been melted and processed at DZX Alloy's Changzhou, Jiangsu mill since 2002, under ISO 9001 and SGS quality systems, with exports to 60+ countries. Orders that start with a test bar are quoted with the grade and surface written into the offer, so a shop qualifies the material on its own machines before the production quantity is scheduled.
Send the drawing, the machining operation and the required quantity for a quote.
Q: How is machinability verified before production quantities are ordered?
A: A test bar from the annealed bar on order is run at your feeds and speeds, so chip formation and the attainable finish are checked on your machine before the production order is placed.
Q: What chip behaviour and tooling does pure nickel call for?
A: The chip can run long and gummy because the metal is ductile. Sharp tooling, a positive rake angle and steady lubrication give the most consistent result, and the annealed condition keeps that steady across lots.
Q: Are all four grades annealed as standard?
A: Yes. Annealed is the standard temper for Ni200, Ni201, N4 and N6, so cutting behaviour proved on one grade holds for the others as well.
Q: Which diameters are held for machining orders?
A: 8 mm, 10 mm, 12 mm and 20 mm are held in stock; other diameters from 3 mm to 300 mm and lengths to 6000 mm are produced to drawing.
Q: What is the minimum order quantity?
A: MOQ is 10 kg, and trial lots at that level are welcome.
Q: What is the delivery time?
A: 3-7 days for in-stock diameters, 7-15 days for standard production, and 15-30 days for sizes produced to drawing.
Q: What documentation comes with a trial lot?
A: A mill test certificate (EN 10204 3.1) recording the lot composition and mechanical results, with ASTM B160 or GB/T 4435 references for incoming inspection.
Q: Does the finished part keep the annealed properties?
A: Not automatically. Cold working raises strength as ductility falls, and heat treatment moves the balance back, so a part with specified final properties is planned from the as-supplied condition.
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
