Q1: What are N4, N6, Ni200, and Ni201 nickel bars?
A1: These are high-purity nickel bars with purity ≥99.6%.
Ni200/N4: Standard commercial-purity nickel with excellent corrosion resistance and electrical conductivity.
Ni201/N6: Low-carbon nickel variant with superior resistance to intergranular corrosion and oxidation at elevated temperatures.
Q2: What are the main applications of pure nickel bars?
A2: They are widely used in chemical processing, aerospace, electronics, battery electrodes, heat exchangers, plating equipment, and high-temperature industrial components due to their high corrosion resistance and conductivity.
Q3: How do these pure nickel bars compare with stainless steel or other nickel alloys?
A3: Pure nickel bars provide superior resistance to caustic and oxidizing environments compared to stainless steel. Ni201, with low carbon content, is especially resistant to intergranular corrosion at high temperatures, which ordinary stainless steels cannot match.
Q4: What are the typical mechanical properties of these bars?
A4: Ni200/Ni201 bars have a tensile strength of around 380–550 MPa, good ductility (30–50% elongation), and high thermal and electrical conductivity, while maintaining corrosion resistance even under harsh industrial conditions.
Q5: What sizes, forms, and standards are available?
A5: These nickel bars are manufactured according to ASTM B162/B166 and equivalent standards. They are available in round, square, or flat bars, typically with diameters from 5 mm to 200 mm and custom lengths according to industrial requirements.
