Top-Grade Pure Nickel Bars for Aerospace and Engineering

Aerospace and engineering components run where temperature, stress and certification meet: a material must hold its properties under heat, machine predictably, and arrive with documentation that inspection accepts. Pure nickel bars from DLX are supplied for that combination — melting point of 1435-1446°C for high-temperature stability, annealed tensile strength of at least 462 MPa with ≥35% elongation for machined and formed parts, and four grades (N4, N6, Ni200, Ni201) to tune purity and cost. Every heat is documented with EN 10204 3.1 MTC and full batch traceability, production runs on an ISO9001 and SGS verified nickel-only line, and sizes are confirmed per drawing. Ni201 serves sustained high-temperature duty; N6 and Ni200 cover general engineering and corrosion service.

Size & Specification Overview

• High-temperature stability — melting point 1435-1446°C for demanding thermal environments.
• Mechanical strength — annealed tensile ≥462 MPa with ≥35% elongation for machined and formed parts.
• Four grades on one order — N4/N6/Ni200/Ni201 — tune purity and cost per application.
• EN 10204 3.1 MTC with heat traceability — documentation inspection accepts.
• Custom sizes per drawing, with in-stock diameters for fast dispatch.

Technical Deep Dive

Selection in aerospace and engineering follows the service envelope. Where sustained heat is the constraint, Ni201 is the grade for high-temperature service. Where mechanical strength and formability must combine, the annealed baseline of ≥462 MPa and ≥35% elongation provides the margin. N4 (NP1) serves the strictest purity requirements, while N6 and Ni200 cover general engineering and corrosion duty.

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

The annealed baseline is documented per heat: ≥462 MPa tensile strength, ≥35% elongation and 90-120 HB hardness. Machined and formed components depend on that combination — strength for service, ductility for processing.

Annealed is the standard temper for forming and machining; cold-worked tempers provide higher strength for structural parts. Specify the target strength or hardness on the drawing and the temper is set accordingly.

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 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.

Engineering teams rarely buy a bar — they buy a solution to a service condition. Changzhou DLX Alloy Co., Ltd. supports that process with a full nickel-based product family and the data to back it: every grade from N4 to Ni201 ships with documented composition, mechanical properties and EN 10204 3.1 MTC, so selection, qualification and inspection run on the same numbers. The 12,000 m² nickel-only facility has been producing since 2002, and the engineering discipline built over two decades now carries into every aerospace and engineering order.