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Corson Alloy NKC388(UNS Alloy No. C70252)

NKC388(UNS Alloy No. C70252)

Description

Data

NKC388 has superior characteristics to conventional Corson alloys', keeping a good balance between mechanical strength, electric conductivity and bend formability of the conventional alloys.

Table 1. Chemical Composition of NKC388 (%)

  Cu Ni Si Mg Mn
Typical Balance 3.8 0.8 0.1 0.13

Table 2.Physical Properties of NKC388

Temper SH ESH XSH USH  
Electric conductivity 38 34 %IACS(@20℃)
Specific resistance 45.4 50.7 nΩ・m(@20℃)
Thermal conductivity 160 143 W/mK
Young's modulus 123 L.D. : 123
T.D. : 135
L.D. : 120
T.D. : 140
GPa
Thermal expansion coefficient 17.6 ×10-6/K(20 to 300℃)
Density 8.82 g/cm3

Table 3.Mechanical Properties of NKC388 (upper:typical values, lower:standard specs)

Temper Tensile Strength
(MPa)
0.2% offset Yield Strength
(MPa)
Elongation
(%)
Vickers Hardness
(Hv)
SH 940
(890-990)
910
(860-960)
3
(1min)
280
(250-310)
ESH 980
(930-1030)
950
(900-1000)
2.5
(1min)
295
(265-325)
XSH 1030
(970-1090)
1000
(940-1060)
2
(1min)
325
(285-350)
USH NEW L.D. : 1030
(970-1090)
L.D. : 1000
(940-1060)
L.D. : 2.0
(1min)
325
(285-350)
T.D. : 1130
(1070-1190)
T.D. : 1100
(1040-1160)
T.D. : 2.0
(1min)