Electronics-Grade Pure Nickel Bars with Consistent Purity

Electronics manufacturing punishes inconsistency: a shift in impurity level between heats can change a device's electrical behavior, and a batch that passes one inspection may fail the next. Pure nickel bars for electronics are therefore chosen on three things — purity, conductivity and traceability. DLX supplies four grades with documented purity from N4 (≥99.9%, vacuum electronics) to Ni200 (≥99.2%, battery duty), a stable resistivity baseline of 0.096 μΩ·m at 20°C, and EN 10204 3.1 MTC with heat traceability on every shipment. Sizes are confirmed per drawing, the annealed mechanical baseline is documented per heat, and production runs on an ISO9001 and SGS verified nickel-only line. Electronics buyers get material they can qualify once and reorder with confidence.

• N4 (NP1) ≥99.9% for vacuum electronics — the strictest purity on the line.
• Stable resistivity baseline of 0.096 μΩ·m at 20°C — predictable electrical behavior.
• Consistent purity across heats, with EN 10204 3.1 MTC traceability.
• Ni200 battery duty and Ni201 high-temp options on one purchase order.
• Custom sizes per drawing, with in-stock diameters for fast dispatch.

Grade selection follows the component, not a default. N4 (NP1) serves vacuum electronics where the highest purity matters. Ni200 covers battery and connector components where stable conductivity is the requirement. Ni201 extends service temperature for higher-duty parts, and N6 offers an economical option for general electronic hardware.

For electronics, purity and electrical behavior are two sides of the same data sheet. Resistivity sits at 0.096 μΩ·m at 20°C, and the Curie temperature of 358°C marks where magnetic behavior changes — relevant for components operating near that range. Purity is documented per heat from ≥99.9% (N4) down the grade ladder, so the conductivity you design around is the conductivity you receive.

Diameter, length, straightness and surface are confirmed against your drawing before production, and tolerances are locked at that review — critical when bars are machined into small precision components.

Electronics components are often machined from bar stock, so mechanical consistency matters as much as purity. Annealed bars deliver ≥462 MPa tensile strength, ≥35% elongation and 90-120 HB hardness — documented per heat, so machining behavior stays predictable from order to order.

Annealed is the standard temper for components that will be machined or formed; cold-worked tempers provide higher strength for structural parts. Specify the target strength or hardness on the drawing and the temper is set accordingly.

Indicative FOB China reference prices for bars; final quotation per grade, size, quantity and temper.

Source: DLX product catalog. N4/N6 per GB system; Ni200/Ni201 per ASTM system.

The 10 kg minimum order for bars covers drawing setup and heat allocation, so tolerances can be locked per drawing; wire and strip products are available at 5 kg MOQ.

Quality control for bars follows the shape, not a generic checklist:

• Incoming: raw nickel verified per heat before processing.
• In-process: diameter, length and straightness checked with calibrated instruments; surface inspected along the full length.
• Final: tensile and hardness testing sampled per heat; chemical composition verified per heat.
• Documentation: EN 10204 3.1 MTC with heat number, test results and full traceability.

Ni200/Ni201 bars are manufactured and tested to ASTM B160; N4/N6 follow GB/T 4435-2010. Testing methods and acceptance criteria follow the drawing specification and applicable standards.

Straight bars are bundled and protected against transit damage; longer lengths travel in export wooden cases, seaworthy-packed for container shipment. In-stock diameters can be dispatched promptly, and production lead time is 7-15 days after drawing and grade confirmation. Every order ships with the complete export documentation set: packing list, commercial invoice and mill test certificate.

Changzhou DLX Alloy Co., Ltd. started in 2002 with resistance alloys — materials that sit inside electronic heating and sensing devices — and that early focus shaped how the company thinks about purity and consistency. Today the same discipline carries into pure nickel bars for electronics: every heat is tracked, every delivery carries EN 10204 3.1 MTC, and the nickel-only 12,000 m² facility keeps the production line free from cross-alloy contamination. For electronics buyers, where a fraction of a percent of impurity can change a device's behavior, that background is the difference between a supplier and a materials partner.

Four documented grades: N4 (NP1) ≥99.9% for vacuum electronics, N6 (NP2) ≥99.5%, Ni201 ≥99.0% and Ni200 ≥99.2% per the respective GB and ASTM systems.

Resistivity is 0.096 μΩ·m at 20°C, with a Curie temperature of 358°C and thermal conductivity of 70.2 W/m·K for Ni200.

N4 (NP1) is the highest-purity grade at ≥99.9%, specified for vacuum electronics duty.

10 kg for custom bars — the minimum covers drawing setup and heat allocation so tolerances can be locked per drawing. Other pure nickel forms, such as wire and strip, are available at 5 kg MOQ.

Every delivery includes EN 10204 3.1 MTC with heat number and batch traceability, backed by ISO9001 and SGS certification. Bars meet ASTM B160 (Ni200/Ni201) and GB/T 4435-2010 (N4/N6).