Pure Nickel Bars Engineered for Precision Machining Projects

Machining nickel is a different game from machining steel: the metal wants to work-harden, chip control matters, and a bar with loose dimensional consistency turns a finished part into scrap. Precision machining projects need a material with stable hardness for predictable cutting, enough elongation to survive drilling and threading, and tolerances that are locked before production. Pure nickel bars from DLX are supplied with an annealed baseline of 90-120 HB and ≥35% elongation, custom diameters and lengths made per drawing, and EN 10204 3.1 MTC on every batch. Four grades — N4, N6, Ni200, Ni201 — cover the range from vacuum-electronics purity to industrial corrosion duty. Sizes, tolerances and temper are confirmed at drawing review, so the bar arrives ready for your process.

Size & Specification Overview

Key Strengths

• Annealed 90-120 HB hardness for stable, predictable cutting — fewer surprises at the tool.
• ≥35% elongation resists cracking during turning, drilling and threading.
• Custom diameters and lengths per drawing, with tolerances locked at drawing review.
• Four grades on one purchase order — N4/N6/Ni200/Ni201 — match machinability to cost.
• EN 10204 3.1 MTC with batch traceability on every delivery.

Technical Deep Dive

Work-hardening is the first thing a machinist notices about nickel. DLX controls it from the temper side: annealed bars hold a stable 90-120 HB range, keeping cutting forces predictable, while ≥35% elongation reduces the risk of cracking when a tool engages an edge. The result is a bar that machines consistently from heat to heat.

Precision work starts before the first cut. Diameter, length, straightness and surface finish are confirmed against your drawing before production, and the tolerances are locked at that review. No stock-size guessing, no last-minute compromises.

Annealed is the recommended temper for machining and forming; cold-worked tempers provide higher strength where the finished part carries load. Specify the target strength or hardness on the drawing, and the temper is set accordingly.

Round bars in this range support machined components where dimensional stability and corrosion resistance both matter: tooling fixtures, fasteners, machined fittings, and parts for chemical and instrumentation duty. The grade choice tunes the balance — N6 for cost-effective industrial parts, Ni201 for higher-temperature service, N4 for the strictest purity requirements.

Grade & Price Guide

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 Assurance

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.

Packaging & Delivery

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. has spent two decades developing nickel alloy process know-how — from the resistance alloys it started with in 2002 to the full nickel-based family it produces today. That development record is what makes precision work possible: temper control, dimensional stability and repeatable mechanical properties are engineered into the bar, not improvised at the machine. Every grade from N4 to Ni201 runs on a controlled 12,000 m² nickel-only line, so machining projects get a material that behaves the same from heat to heat and from order to order.

Annealed bars hold a stable 90-120 HB range for predictable cutting, and ≥35% elongation reduces edge cracking during drilling and threading. Cold-worked tempers are available where the finished part needs higher strength.

Tolerances are set per drawing and locked at drawing review — diameter, length, straightness and surface are confirmed before production. There is no standard catalog range; specify your drawing.

Custom sizes per drawing, with popular diameters held in stock for fast dispatch.

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).