Formula

CP/˚C

Reduction rate of lubrication coefficient/%

Reduction rate of linear expansion/%

A₂B₂C₃

43.4

74.1

45.7

A₂B₃C₃

45.2

76.9

47.6

A₃B₂C₃

41.6

75.2

45.9

A₃B₃C₃

44.4

78.5

48.2