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8 mm and 10 mm pure nickel round bar in Ni200 and Ni201, annealed and cut to length from stock. Weight per meter runs about 0.45 kg/m at 8 mm and 0.70 kg/m at 10 mm, useful for material and freight planning; other diameters are produced from 3-300 mm per drawing with EN 10204 3.1 certificates.
Two diameters never leave the mill shelf: 10mm nickel bar and 8 mm bar, annealed in Ni200 (UNS N02200) and Ni201 (UNS N02201), retained because repeat export orders keep drawing them. Both cut to length from stock and machine into bushings, shafts, fasteners, electrodes and process hardware that appear on standing drawings. 12 mm and 20 mm sit beside them in the same holding pattern, while anything else runs from 3 mm to 300 mm per drawing. Each lot ships with a mill test certificate (EN 10204 3.1) stating actual composition and mechanicals.
| Form | Round Bar / Rod |
| Grades | Ni200 (UNS N02200) / Ni201 (UNS N02201); N4 / N6 on request |
| 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, plus the four surface states listed above, are supplied under the pure nickel round bar program.
8 mm and 10 mm annealed bar held in stock, ready for cut length.
Cut to length from stock, so a machining schedule is not held up for material.
Ni200 for general service; Ni201 (C ≤0.02%) where the part runs hot.
Turned, threaded or welded without special preparation, in black, peeled, polished or cold drawn condition.
Mill certificates with every lot, factory-direct from Changzhou.
The two diameters repeat because machining shops standardise on them: bushings, shafts, threaded studs, contact pins and electrodes are drawn again and again at 10 mm, with 8 mm covering the smaller fittings and probe bodies on the same drawings. Weight per meter is the number purchasing uses for material and freight planning, and it follows the nominal diameter at the 8.908 g/cm³ density: about 0.45 kg/m at 8 mm, 0.70 kg/m at 10 mm, 1.01 kg/m at 12 mm and 2.80 kg/m at 20 mm (calculated). Ni200 covers general service in this range; above roughly 315°C the low-carbon grade Ni201 is specified instead, and N4 or N6 equivalents are quoted on request under GB/T 4435.
Annealed nickel bar cuts like a soft, gummy metal: sharp tools and generous rake angles matter more than speed, and the low carbon of Ni201 keeps the chip clean at the higher end of the temperature range. Threads form cleanly by rolling or cutting because the annealed structure has elongation of at least 35%. Welding runs under inert gas shielding, with pre-cleaning of the bar surface doing more for the joint than any special filler choice. Cut lengths come from stock or from the drawing, and diameter tolerance, straightness and length are confirmed against the specification before scheduling.
Nickel resists hot caustic alkalis and reducing media, and that performance does not extend to chloride-rich service. Seawater and chloride-bearing process streams cause pitting and crevice corrosion in pure nickel, which is why that duty is normally specified in titanium, copper-nickel alloys or duplex stainless steels. Chloride content, temperature and flow conditions are the three inputs worth confirming before a grade is fixed.
A repeat order is made to the grade and surface on the drawing, and every lot carries its own certificate with its own heat number. Composition and mechanicals on that certificate come from the shipped lot, so the numbers purchasing filed last time and the numbers received this time are comparable. Where a drawing calls for N4 or N6 equivalents, GB/T 4435 references accompany the ASTM B160 documentation.
| Grade | Ni+Co (min) | C (max) | Cu (max) | Fe (max) | Mn (max) | Si (max) | S (max) |
|---|---|---|---|---|---|---|---|
| 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% |
| N6 | 99.5% | 0.10% | 0.10% | 0.10% | 0.05% | 0.10% | 0.005% |
| N4 | 99.9% | 0.01% | 0.015% | 0.04% | 0.002% | 0.03% | 0.001% |
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.
Each shipment carries an EN 10204 3.1 mill certificate stating the actual composition and mechanicals of the lot, with ASTM B160 and GB/T 4435 references for incoming inspection. Bars are checked for straightness and surface before packing, and the certificate travels with the export documents.
Ni200/Ni201: ASTM B160 (Nickel Rod and Bar), UNS N02200/N02201. N4/N6 Chinese-grade equivalents: 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. Weight per meter figures are calculated from nominal diameter at the catalogue density.
Bar is supplied in cut lengths or bundles, wrapped, and packed in export wooden cases with grade, size and heat number on the label. Stock diameters dispatch in 3-7 days, standard production runs 7-15 days, and non-stock sizes 15-30 days to drawing. Weight per meter is quoted with the offer so freight can be planned before shipment. Worldwide shipping is quoted per destination, and payment is by L/C, T/T, Western Union or MoneyGram.
DZX Alloy has run its Changzhou, Jiangsu mill since 2002 under ISO 9001 and SGS quality systems, and exports nickel bar to 60+ countries. The four standing diameters are held because export orders draw them repeatedly, and the production capacity behind the stock program runs to 10,000 t/yr of nickel-based material.
Send the diameter, cut length and quantity for a quote carrying dispatch date and weight per meter.
Q: Which diameters ship from stock?
A: 8 mm, 10 mm, 12 mm and 20 mm in annealed condition, dispatched in 3-7 days. Other diameters run 3-300 mm per drawing.
Q: How much does 10 mm bar weigh per meter?
A: About 0.70 kg/m at the 8.908 g/cm³ density, against roughly 0.45 kg/m at 8 mm, 1.01 kg/m at 12 mm and 2.80 kg/m at 20 mm, calculated from nominal diameter.
Q: What length and tolerance do you cut to?
A: Cut lengths are supplied from stock or per drawing, and the specification is confirmed before scheduling.
Q: Which grade for a part that sees 400°C?
A: Ni201, with carbon limited to 0.02%. Above roughly 315°C the carbon in Ni200 can precipitate at grain boundaries and embrittle the part in service.
Q: Can I use pure nickel bar for seawater?
A: Not as first choice. Chloride-rich seawater causes pitting and crevice corrosion in nickel, and that duty is normally specified in titanium, copper-nickel or duplex stainless grades. Nickel bar suits hot caustic alkalis and reducing media.
Q: What surface should I order for a machined part?
A: Peeled or polished bar where the finished surface is tight, black bar for parts machined all over, and cold drawn bright where the bar surface is close to the finished condition.
Q: What export documents do you provide?
A: EN 10204 3.1 mill test certificates recording actual lot chemistry 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 do I get a price for a specific length?
A: Send diameter, cut length and quantity; the quote carries grade, surface, weight per meter and dispatch date.
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
