Corson Alloy NKC286(UNS Alloy No. C64728)

NKC286 Corson Alloy Designed for In-Vehicle Electronic Components, with High Mechanical Strength(UNS Alloy No. C64728)



NKC286 is a new Corson Alloy (Cu-Ni-Si) combining high mechanical strength, high electrical conductivity and bend formability. NKC286, meeting JC400 of JASO (Japanese Automobile Standards Organization), is best suited for in-vehicle electrical components.

Table 1. Chemical Composition of NKC286 (%)

  Cu Ni Si Sn Zn
Typical Balance 2.8 0.6 0.5 0.4

Table 2.Physical Properties of NKC286

Electric conductivity 41 %IACS(@20℃)
Specific resistance 43.1 nΩ ・ m(@20℃)
Thermal conductivity 165 W/mK
Thermal expansion coefficient 17.4 ×10-6/K(20 to 300℃)
Young's modulus 127 GPa
Density 8.87 g/cm3

Table 3. Mechanical Properties of NKC286 (Specifications)

Temper Tensile Strength
0.2% offset Yield Strength
Vickers Hardness
1/2H 710-840 690-830 3min 200-270
H 760-890 740-880 2min 210-280
EH 810-940 790-930 1min 230-300