Nickel 201 Bar – Low Carbon Pure Nickel Grade N02201
Nickel 201 (UNS N02201) low-carbon pure nickel bar, carbon 0.02% max, annealed, in round bar from 8-20 mm stock and 3-300 mm to drawing, supplied from trial quantity with mill certificates.
0Nickel 201 (UNS N02201) low-carbon pure nickel bar, carbon 0.02% max, annealed, in round bar from 8-20 mm stock and 3-300 mm to drawing, supplied from trial quantity with mill certificates.
Nickel 201 bar in UNS N02201 is the low-carbon grade of pure nickel, held to a carbon maximum of 0.02%. It is supplied annealed in round bar from 8 mm to 20 mm off the shelf and from 3 mm to 300 mm to drawing, with lengths up to 6000 mm, from a trial quantity of 10 kg upward. The lot certificate reports the carbon value for the heat, so the grade can be confirmed against the purchase order on arrival.
The two grades are indistinguishable by eye, by weight and by the finish on the bar. What separates them is a single chemistry limit: Ni200 is allowed up to 0.15% carbon, and Ni201 is held to 0.02%. Both are annealed, both are supplied in the same diameters and the same surface states, and both sit inside the pure nickel series. Because the difference cannot be seen, the grade is established from the carbon figure on the mill certificate rather than from the appearance of the bundle.
That is the reason the UNS number is written on the purchase order. A drawing that calls for N02201 and receives N02200 will look correct in every respect and still be the wrong grade, and no goods-in inspection short of a chemistry check will catch it.
| Grade | Ni201 (UNS N02201), low carbon. Ni200 (UNS N02200), N4 and N6 also supplied. |
| Form | Round Bar / Rod (hexagonal and square per drawing) |
| 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) |
| Carbon (max) | 0.02% |
| Nickel + Cobalt (min) | 99.0% |
| 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 |
Both grades, and the low-carbon option across the range, are produced under the pure nickel bar program.
Low-carbon grade held to a 0.02% carbon maximum.
Carbon value for the heat stated on the lot certificate.
Same diameters and finishes as the standard grade.
Trial quantity from 10 kg, with an unbroken lot for scale-up.
Mill certificate (EN 10204 3.1) with every consignment.
Ni201 keeps the same nickel content and the same minor element limits as Ni200 apart from carbon. The nickel plus cobalt minimum is 99.0%, copper and manganese are held to 0.25% and 0.35% respectively, and carbon is capped at 0.02% against 0.15% for the standard grade. On a purchase order the grade is stated as UNS N02201, nickel 201, or the national equivalent the drawing quotes.
Carbon is harmless to pure nickel at room temperature and becomes a liability as the metal is held hot, and the same limit matters in welded construction where the material has to keep its ductility through the seam. A drawing that calls N02201 is therefore usually a drawing for a part that will either run hot or be welded, or both. The high-temperature bar page covers the service envelope in detail.
Ni201 is produced in the same range as the standard grade: round bar in 8 mm, 10 mm, 12 mm and 20 mm from stock, 3 mm to 300 mm to drawing, hexagonal or square sections per drawing, and lengths up to 6000 mm. Annealed is the standard temper, and the surface can be supplied black, peeled, polished or cold drawn.
A 10 kg order is drawn from one heat and carries one certificate, which is enough material for a trial run or for a small batch of finished parts. Because the trial lot and the production lot come from the same supply route, the grade, the temper and the certificate format do not change when the order is scaled up.
| 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.
The carbon value is established at the melt and reported for the heat, so the grade can be verified without cutting the bar. Each lot is then measured at the diameter and length stated on the order before it is packed, and the mill test certificate (EN 10204 3.1) issued for the lot carries both the chemistry and the mechanical results.
Ni201 (UNS N02201) and Ni200 (UNS N02200): ASTM B160 (Nickel Rod and Bar). N4/N6: GB/T 4435 (Nickel and Nickel Alloy Bars). Export documentation per EN 10204 3.1.
Grade chemistry after ASTM B160 for UNS N02200 and UNS N02201; carbon limits as stated in the standard and reproduced in the composition table above; corrosion and application guidance references the Nickel Institute and the ASM Specialty Handbook: Nickel, Cobalt, and Their Alloys; batch 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. The label carries the grade designation as ordered, and the certificate records the carbon figure for the heat. Trial quantities dispatch in 3-7 days when the diameter is in stock, standard production runs in 7-15 days, and diameters produced to drawing ship 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. The grade is fixed at the melt, and it is the heat analysis that travels with the consignment, which is how a carbon-limited order stays a carbon-limited order through packing and goods-in.
State the grade as UNS N02201 or nickel 201, with the size and quantity required, for a quote.
Q: What is the difference between Nickel 200 and Nickel 201?
A: One chemistry limit. Ni200 is allowed up to 0.15% carbon and Ni201 is held to 0.02%; the nickel content and the other minor element limits are otherwise the same, and both are supplied annealed in the same diameters and finishes.
Q: How do I make sure I receive the grade I specified?
A: Write the UNS number on the purchase order and check the carbon figure on the mill certificate when the material arrives. The two grades look identical, so the certificate is the control.
Q: Is Nickel 201 available in the same sections as Nickel 200?
A: Yes. Round bar in 8-20 mm from stock and 3-300 mm to drawing, and hexagonal or square sections per drawing. Lengths run to 6000 mm.
Q: Can a trial quantity be ordered in this grade?
A: Yes. A 10 kg order is drawn from one heat and carries one certificate, and the same route is used when the order is scaled up.
Q: What temper is supplied?
A: Annealed is the standard temper for Ni201 bar. The surface can be supplied black, peeled, polished or cold drawn.
Q: What documents come with a low-carbon order?
A: A mill test certificate (EN 10204 3.1) stating the heat chemistry, including carbon, and the mechanical results, together with the standard export documentation for the destination.
Q: What is the minimum order quantity?
A: MOQ is 10 kg.
Q: What is the delivery time?
A: In-stock diameters dispatch in 3-7 days, standard production in 7-15 days, and diameters produced to drawing in 15-30 days.
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
