Nb(Atomic number : 41)

1. Introduce – Pure niobium is used as an alloying agent in steel production due to its ductile nature, but its strength is improved when impurities are added – Steel containing a small amount of niobium (about 0.1%) has excellent strength, wear resistance, and heat resistance – It becomes a superconductor at low temperatures, and the superconducting critical temperature for pure niobium at atmospheric pressure is 9.2K, the highest among elements 2. Property – Excellent hardness, corrosion resistance, toughness, wear resistance, machinability, weldability, high temperat...