Constantan Physical Properties

Copper nickel alloy constantan hlau, uas muaj hluav taws xob tsis tshua muaj hluav taws xob, zoo tshav kub-resistant thiab corrosion-resistant, yooj yim rau kev ua thiab txhuas welded. Nws yog siv los ua cov khoom tseem ceeb hauv thermal overload relay, tsis tshua muaj thermal Circuit Court breaker, thiab cov khoom siv hluav taws xob. Nws kuj yog ib yam khoom tseem ceeb rau hluav taws xob cua sov cable. Nws zoo ib yam li hom cupronickel.

Lub cev muaj zog ntawm constantan yog:

Melting point - 1225 txog 1300 oC

Lub ntiajteb txawj nqus - 8.9 g / cc

SolubilityHauv dej - Insoluble

Qhov tshwm sim - Ib qho nyiaj-dawb malleable alloy

Hluav taws xob tiv taus ntawm chav tsev kub: 0.49 µΩ / m

Thaum 20° c- 490 μΩ / cm2

Qhov ceev - 8.89 g / cm3

Kub Coefficient ± 40 ppm / K-1

Tshwj xeeb kub muaj peev xwm 0.39 J / (g·K)

Thermal conductivity 19.5 W / (mK)

Elastic Modulus 162 GPa

Elongation ntawm pob txha - <45%

Tensile zog - 455 rau 860 MPa

Linear Coefficient ntawm Thermal Expansion 14.9 × 10-6 K-1