Component

Material

Code

Quadrants

Polyethylene doped with Lithium

Plug

Polyethylene doped with Lithium

Properties

Pe

Bo % Doped

MECHANICAL PROPERTIES

VALUES

COMMENTS

US / Other Units

PHYSICAL PROPERTIES

VALUES

COMMENTS

US / Other Units

Density, g/cc

8

8 g/cc

Hardness, Brinell

123

Converted from Rockwell B hardness.

123

Hardness, Knoop

138

Converted from Rockwell B hardness.

138

Hardness, Rockwell B

70

70

Hardness, Vickers

129

Converted from Rockwell B hardness.

129

MECHANICAL PROPERTIES

VALUES

COMMENTS

US / Other Units

Tensile Strength, Ultimate, MPa

505

73,225 psi

Tensile Strength, Yield, MPa

215

at 0.2% offset

31,175 psi

Elongation %; break

70

in 50 mm

70 %

Modulus of Elasticity, GPa

197

193-200 GPa.

28,565 ksi

Impact Strength, Charpy, J

325

240 ft-lb

Shear Modulus, GPa

86

12,470 ksi

THERMAL PROPERTIES

VALUES

COMMENTS

US / Other Units

CTE, linear 20ºC, µm/m-°C

17.3

from 0-100°C

9.6 µin/in-°F

CTE, linear 250ºC, µm/m-°C

17.8

at 0-315°C (32-600°F)

9.9 µin/in-°F

CTE, linear 500ºC, µm/m-°C

18.7

at 0-650°C

10 µin/in-°F

Heat Capacity, J/g-°C

0.5

from 0-100°C (32-212°F)

0.12 BTU/lb-°F

Thermal Conductivity, W/m-K

16.2

at 0-100°C, 21.5 W/m°C at 500°C

112 BTU-in/hr-ft²-°F

Melting Point, °C

1427

1400-1455°C melting range.

2,601 °F

Solidus, °C

1400

2,552 °F

Liquidus, °C

1455

2,651 °F

ELECTRICAL PROPERTIES

VALUES

COMMENTS

US / Other Units

Electrical Resistivity, Ohm-cm

0.000072

at 20°C (68°F); 1.16E-04 at 650°C (1200°F)

0.000072 Ohm-cm

Magnetic Permeability

1.008

at RT

1.008