Ni200 / Ni201 / N6 - Annealed temper
Nickel Wire
0.025mm finest draw , 17 reduction passes from 8mm rod through tungsten carbide dies, laser micrometer on every pass. ±0.003mm tolerance on wire ≤0.1mm. The Ni200 vs Ni201 decision matters more than anything else in your lead wire spec. Ni200 (0.15% C max): fine below 80°C, where carbide precipitation stays undetectable for 40,000+ hours. Use it for bus-bar connections that never touch electrolyte. Ni201 (0.02% C max): mandatory for any wire immersed in KOH above 80°C. The carbon difference determines whether your leads last 40,000 or 60,000+ hours , we've sectioned failed Ni200 leads from a 42,000h teardown and mapped grain-boundary corrosion networks under SEM. Ni201 doesn't have the carbon to fuel that reaction. Temper: annealed (≥30% elongation), quarter-hard, hard-drawn. Surface: bright annealed, oxidized (~8% cheaper), or as-drawn. 3kg spools to 250kg drums. ASTM B162, EN 10204 3.1 cert shipped with every order.
Technical specifications
Rev. 2026-Q3 - lot-certified per ASTM E8 and EN 10204 3.1
| Alloy grades | Ni200 (UNS N02200), Ni201 (UNS N02201), N6 (Chinese GB) |
|---|---|
| Applicable standards | ASTM B162, ASTM B160, GB/T 5235 |
| Diameter range | 0.025 - 8.0 (custom diameters within range) mm |
| Tolerance - fine wire | Plus/minus 0.003 (diameter ≤0.1 mm) mm |
| Tolerance - standard | Plus/minus 0.01 (diameter ≤1.0 mm) mm |
| Temper | Annealed (min 30% elongation) / 1/4-hard / hard-drawn |
| Tensile strength | 380 - 690 MPa (annealed temper) |
| Elongation | Min 30% (annealed) - suitable for forming, crimping, welding |
| Conductivity | 14 - 18 % IACS (International Annealed Copper Standard) |
| Surface finish | Bright annealed, oxidized, or as-drawn |
| Packaging | Spools, coils, bobbins, or drum-pack per customer requirement |
| Ni200 composition | Ni min 99.5%, C max 0.15%, Fe max 0.40% |
| Ni201 composition | Ni min 99.0%, C max 0.02%, Fe max 0.40% |
Related products
Need Ni200 vs Ni201 selection guidance?
The 0.13% carbon difference between Ni200 and Ni201 is the critical variable for electrolyzer lead wire lifetime. Our technical bulletin includes grain-boundary carbide precipitation data and application-specific grade recommendations for your operating temperature and KOH concentration.