Niobium Sheet

Symbol: Nb
Atomic number: 41
Atomic weight: 92.90637
Melting point: 2468℃
Element category: transition metal

Niobium, formerly columbium, is gray like other metals and takes on a bluish tinge when exposed to air at room temperatures for a long time. It resembles the element tantalum and performs resistance against many chemicals. Niobium has a high ductility at room temperature.

Niobium is used mostly as an alloying agent to produce high-temperature-resistant alloys or special steel. Superalloys containing niobium are widely used winning various superconducting materials. High level of biocompatibility makes niobium has good use in surgery.

Niobium (Nb) is a shiny gray metal with a melting point of 2468°C, a boiling point of 4742°C, and a density of 8.57g/cm³. High-purity niobium metal has higher ductility, but will harden as the impurity content increases. Niobium has a very low capture cross section for thermal neutrons, so it is quite useful in the nuclear industry. KOBO is a trust-worthy supplier of high-quality Niobium Plate & Board & Sheet.

Standard Specification ASTM B 393-05 for Niobium Ribbon, Niobium Alloy Ribbon, Niobium Strip, Niobium Alloy Strip, Niobium Foil, Niobium Alloy Foil, Niobium Sheet, Niobium Alloy Sheet, Niobium Plate, Niobium Alloy Plate.

This specification covers five grades of wrought Niobium Ribbon, Niobium Alloy Ribbon, Niobium Strip, Niobium Alloy Strip, Niobium Foil, Niobium Alloy Foil, Niobium Sheet, Niobium Alloy Sheet, Niobium Plate, Niobium Alloy Plate as follows:

1. ASTM B 393-05 UNS R04200 -Type 1, Reactor grade unalloyed niobium;

2. ASTM B 393-05 UNS R04210 -Type 2, Commercial grade unalloyed niobium;

3. ASTM B 393-05 UNS R04251 -Type 3, Reactor grade niobium alloy containing 1% zirconium;

4. ASTM B 393-05 UNS R04261 -Type 4, Commercial grade niobium alloy containing 1% zirconium;

5. ASTM B 393-05 UNS R0xxxx -Type 5, Residual Resistivity Ratio(RRR) grade pure niobium.

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