The Difference Between N4 And N6 Pure Nickel Strips

Jun 18, 2025

  • Basic Introduction to Nickel Strip

Nickel strip states (Vickers hardness): hard (Y), semi hard (Y2), 1,4 hard (Y4), soft (M).
Nickel strip specification: Broadband: Liang Zhao 2~330mm Thickness: 0.05~1mm Length:>=3000mm
The packaging, labeling, transportation, and storage of nickel strips shall comply with GB88888.
Nickel strip purity: above 99.95%
Nickel strip characteristics: It has good luster, ductility, and weldability.


1, The difference between N4 and N6 pure nickel strips
The difference between N4 and N6 lies in the content of C, which refers to low-carbon pure nickel and ordinary pure nickel, respectively
N4 and N6 correspond to Ni201 and Ni200 in ASME II, which are low-carbon pure nickel and ordinary pure nickel
N4 Ni%=99.9%, C%=0.01%Max,
N6 Ni%=99.5%-99.6% C%=0.10%Max


2, According to GB2054-2005, the difference between N4 and N6 is:

  • Chemical composition, N4 C content less than 0.02%, N6 C content less than 0.15%, with the same content of other elements;
  • Mechanical properties, in the M-state, N4 Rm≥350MPa,N6 Rm≥380MPa

Note: The main difference between N4 and N6 is their carbon content. N4 is called low-carbon pure nickel, while the other elements have the same content. Due to the low-carbon nature of N4, it is suitable for certain specific situations. Therefore, it is important to communicate with the customer about the first use environment or purpose to avoid unnecessary trouble.