Ratnam Steel Ltd is a distributor of high purity metal powders and compounds including Niobium.  Niobium Round Bars in diameter ranges from 0.032 inches to 4 inches.  Niobium Sheet thickness ranges from 0.0005 inches to 2 inches.  Niobium Round Tube OD ranges from 0.125 inches to 2 inches.  Niobium Wire diameter ranges from 0.003 inches to 0.500 inches.  Niobium Powder is also in our inventory.  Custom Niobium sizes are also available upon request. Check availability with our sales department to see if Ratnam Steel Ltd can provide your Niobium metal requirement.

Niobium Information

Chemical Symbol: Nb
Date of Discovery: 1801
Name of Origin: Niobe, Daughter of Mythical King (Tantalus)
Density at 293 K: 8.57 g/cm3
Atomic Number: 41
Atomic Mass: 92.90638 amu
Melting Point: 2468.0 °C (2741.15 K, 4474.4 °F)
Boiling Point: 4927.0 °C (5200.15 K, 8900.6 °F)
Number of Electrons / Protons: 41
Number of Neutrons: 52
Classification: Transition Metal
Color: White
Crystal Structure: Cubic
Number of Energy Levels: 5
Uses: Pacemakers ; Jewelry ; Nuclear ; Welding ; Optics


~ Ductile and soft
~ Low toxicity

Forms and Shapes Available

Niobium Bars
Niobium Coils
Niobium Fasteners
Niobium Foils
Niobium Powder
Niobium Rods
Niobium Plates
Niobium Powder
Niobium Sheets
Niobium Tubes
Niobium Wire

Niobium Known Tradenames

Columbium, Niobium