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Niobium (Nb) Crucible


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Niobium crucible, also called niobium cup, is mainly used in the metallurgical industry, chemical industry, machinery processing, glass, and ceramic industries. Heeger Materials (HM) provides customized Niobium Crucible / Niobium Cup with the shortest lead time and the best price.

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Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.

Data sheet

Materialsniobium&niobium alloy
StandardASTM B394

More info

Niobium is gray, like all other metals. However, by applying a pacifying oxide layer, it will gleam in a beautiful array of colors. In fact, niobium does not just look pretty. Like tantalum, it's resistant to many chemicals and can be formed easily even at low temperatures.

  • Material:  RO4200, RO4210
  • Purity: 99.95%

The customized Niobium crucible is available in various dimensions upon your request.

Niobium (Nb) Crucible Chemical Composition

Chemical Composition (%)
MaterialMain elements(%)Impurities (Maximum %)

Niobium (Nb) Crucible Mechanical Requirements

GradeTensile strength psi(MPa), ≥Yield strength δ0.2, psi (MPa),≥Elongation in 1"/2" gage length, %, ≥
RO4200, RO421018000 (125)12000 (85)2520

Niobium (Nb) Crucible Packing

The Niobium Crucible will be packed in a wooden case supported with soft materials to ensure that the products thus packed will not shift inside the cases.

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