Unit

CN-15

CG-15

CM-15

Specific gravity

1.27

1.25

1.30

Max. operating temperature

℃

130

130

130

Min. operating temperature

℃

-40

-40

-40

Max. road(static)

(N/㎟)

345

345

346

Max. road(dynamic)

(N/㎟)

69

69

68

Maximum PV factor

(N/㎟ m/s)

0.25

0.22

0.22

Coefficient of friction 

0.05

-0.05

0.05

Shaft surface finish

<=0.4

<=0.4

<=0.4

Rockwell Hardness

HRM

100

100

100

Flexural strength (Lengthwise)

N/㎟

69

69

68

Tensile strength(Lengthwise)

N/㎟

55

65

70

Impact strength(Lengthwise)

ft．1b/in

9.9

9.9

9.9

Compressive strength

N/㎟

345

345

345

Moisture absorption

%

<0.1

<0.1

<0.1