Niobium Materials for Superconductors｜High‑Purity Niobium Plates, Bars and Precision‑Machined Components

Niobium is an irreplaceable critical rare metal in the modern low‑temperature superconductivity field. Pure niobium exhibits superconducting zero‑resistance properties at a low temperature of 9.2 K. It also features excellent low‑temperature toughness, low residual resistance and favorable plastic workability, making it a core raw material for superconducting radio‑frequency (RF) resonant cavities, substrates for superconducting magnets and NbTi superconducting alloy billets. Driven by the continuous growth of industries including medical MRI equipment, high‑energy particle accelerators, controllable‑nuclear‑fusion devices and quantum‑research instruments, market requirements for superconducting‑grade niobium materials with high cleanliness and low interstitial impurities (oxygen, nitrogen, carbon and hydrogen) keep rising.

Baoji Aulister Import and Export Co., Ltd. is located in the rare‑metal industrial base of Baoji, China. We integrate smelting, forging, rolling, vacuum heat treatment and precision machining. We specialize in supplying a full range of niobium billets, niobium plates, niobium bars, niobium foils and custom‑made precision‑machined parts per drawings for superconductor applications. We strictly control smelting and vacuum‑annealing processes and tightly limit interstitial‑element content to guarantee stable RRR (Residual‑Resistance Ratio) performance. Our products comply with ASTM B392, ASTM B393 and Chinese GB/T 3630 standards. Material certificates and chemical‑composition test reports are available for each batch. We support small‑batch sample orders as well as large‑volume project supply, and deliver custom manufacturing services for research institutions and industrial clients worldwide.

Superconducting operating conditions impose stringent requirements on the purity, grain structure and surface condition of niobium raw materials. Excessive interstitial impurities will directly reduce the residual‑resistance ratio, causing higher energy loss and degraded operating performance of superconducting devices. For superconducting applications, we offer ultra‑high‑purity RRR‑grade niobium, together with Nb1Zr alloy and NbTi alloy billets. Product forms include niobium ingots, thick niobium plates, cold‑rolled thin niobium sheets, niobium bars, niobium wires, ultra‑thin niobium foils and various special‑shaped machined parts. Deep‑processing services such as milling, drilling and mirror polishing can be performed according to customer drawings.

Main Grades and Basic Parameters of Niobium for Superconductors

Our products are widely adopted in medical MRI superconducting magnets, synchrotron accelerator RF cavities, magnet systems for nuclear‑fusion experimental facilities, low‑temperature quantum‑research equipment and other scenarios. Besides niobium materials, we also supply titanium, tantalum, molybdenum, nickel, sputtering targets and various precision‑machined rare‑metal components.

Overseas customers are welcome to send detailed drawings and technical specifications for sample quotation and lead‑time inquiry. We look forward to establishing long‑term and stable partnerships with superconducting‑research institutes and equipment‑manufacturing enterprises across the globe.