Plastic Thermal Expansion – Thermal Expansion of Engineering Thermoplastics

The following thermal expansion chart compares the "Coefficient of linear thermal expansion" shown as a factor m/m.k in the table. All materials expand with changes in Temperature. Thermoplastics expand considerably more than metals (e.g. Carbon Steel 10.8x10-6 compared to UHMWPE 200x10-6 i.e. approximately 18 times more).

Linear thermal expansion means the product will expand in all directions and this needs to be allowed for in design calculations. The calculation is: (given factor) x 10-6 x length x change in temperature °C.

Thermal Expansions of Dotmar Engineering Thermoplastics

Table 1. Thermal Expansions of Dotmar Engineering Thermoplastics

Product Name

Plastic Type

M/(MxK)

Polystone Ultra

PE Polyethylene

200

Polystone 8000+

PE Polyethylene

200

Polystone 7000SR

PE Polyethylene

200

Polystone 7000

PE Polyethylene

200

Polystone 500

PE Polyethylene

200

Polystone 300

PE Polyethylene

200

Playtec

PE Polyethylene

200

Polystone M-Flametech AST

PE Polyethylene

200

Polystone M-Slide

PE Polyethylene

200

Polystone PP

PP Polypropylene

200

Polystone Ezyslide 78

PE Polyethylene

180

Tetron G

PTFE Polytetrafluoroethylene

136

Tetron B

PTFE Polytetrafluoroethylene

134

PVDF 1000

PVDF Polyviylidenefluoride

130

Tetron S

PTFE Polytetrafluoroethylene

125

Tetco V

PTFE Polytetrafluoroethylene

120

Tetron C

PTFE Polytetrafluoroethylene

114

Tetron GR

PTFE Polytetrafluoroethylene

112

Ertacetal C

Acetal

110

Ertalon 6SA

Nylon

90

Ertalon LFX

Nylon

80

Ertalon 6XAU+

Nylon

80

Nylatron MC901

Nylon

80

Ertalon 6PLA

Nylon

80

Ertalon 66SA

Nylon

80

Nylatron GSM

Nylon

80

Ertalon 4.6

Nylon

80

Nylatron GS

Nylon

80

Trovidur EN PVC

PVC Polyvinylchloride

70

Safeguard Hardcoat XX

PC Polycarbonate

65

Ertalyte TX

PETP Polyester

65

Safeguard

PC Polycarbonate

65

Ertalyte

PETP Polyester

60

PSU-1000

PSU Polysulphone

60

PPSU-1000

PPSU Polyphenylenesulphone

55

Ertalon 66GF-30

Nylon

50

Ketron PEEK-1000

PEEK Polyetheretherketone

50

Techtron HPV PPS

PPS Polyphenylene Sulphide

50

Nylatron 703XL

Nylon

49

PEI-1000

PEI Polyetherimide

45

Torlon 4203 & 4503

PAI Polyamide-imide

30

Ketron PEEK-GF30

PEEK Polyetheretherketone

30

Ketron PEEK-HPV

PEEK Polyetheretherketone

30

Ketron PEEK-CA30

PEEK Polyetheretherketone

25

Celazole PBI

PBI Polybenzimidazole

25

Torlon 5530

PAI Polyamide-imide

25

Torlon 4301 & 4501

PAI Polyamide-imide

25

This information has been sourced, reviewed and adapted from materials provided by Dotmar EPP Pty Ltd.

For more information on this source, please visit Dotmar EPP Pty Ltd.

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