Minor Metals in the Periodic Table

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92.9064

Nb - Niobium (Columbium) (Niobium (Melting Grade))

Origin

In Seller’s option.

Tariff No.

8112 9231 unwrought

8112 9221 scrap

Quality

Nb (or Cb)	99.5	% min.
O2	0.05	% max.
All other elements each	0.05	% max.

No other elements specified.

Form

Homogeneous lots of any of the following: whole electron beam melted bars or bar ends, cut bars, cut sheets, cut tubes.

Packaging

In uniform sealed steel drums with inner plastic liners, on pallets, 200 KG net each or whole bars strapped on pallets.

Lot Size & Tolerance

200 KG (+/- 2%)

Documentation

Standard documentation, as per MMTA Consolidated Regulations.

Weighing & Sampling

As per MMTA Consolidated Regulations.

Other Notes

Niobium and columbium are names for the same chemical element with atomic number 41. Columbium (Cb) was the name given in 1801, and niobium (Nb) was the name officially designated by the International Union of Pure and Applied Chemistry in 1950. Niobium is still sometimes referred to as columbium in the Americas.