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VICTREX FG™ POLYMER 340

High performance Food Grade thermoplastic material, filled PolyEtherEtherKetone (PEEK), semi crystalline, granules for injection moulding and extrusion, colour black.

The VICTREX FG™ 300 family of materials is intended for applications needing wear and abrasion resistance for bearing and wear service and low coefficient of thermal expansion for metal replacement. Chemically resistant to aggressive environments, suitable for sterilisation.

Material Properties
Physical

Nominal Value

Unit

Test Method

Density (Crystalline)

1.44

g/cm³

ISO 1183

Spiral Flow 1

13.5

cm

Internal Method

Molding Shrinkage 2

ISO 294-4

Across Flow

0.50

%

Flow

0.0

%

Water Absorption (Saturation, 23°C)

0.30

%

ISO 62
Mechanical

Nominal Value

Unit

Test Method

Tensile Stress

ISO 527-2

Break, 23°C

195

MPa

Break, 125°C

125

MPa

Break, 175°C

85.0

MPa

Break, 225°C

65.0

MPa

Break, 275°C

55.0

MPa

Tensile Strain (Break, 23°C)

1.8

%

ISO 527-2

Flexural Modulus (23°C)

17000

MPa

ISO 178

Flexural Stress

ISO 178

23°C

290

MPa

125°C

220

MPa

175°C

140

MPa

275°C

70.0

MPa

Compressive Stress

ISO 604

23°C

250

MPa

120°C

175

MPa

Coefficient of Friction

ASTM G176

-- 3

0.080

-- 4

0.050

Taber Abrasion Resistance 5

0.0180

mg

Internal Method

Wear Factor 6

ASTM G176

2.0 MPa, 1.0 m/sec

5600

10^-8 mm³/N·m

10 MPa, 1.0 m/sec

6500

10^-8 mm³/N·m

Impact

Nominal Value

Unit

Test Method

Notched Izod Impact Strength (23°C)

6.0

kJ/m²

ISO 180/A

Unnotched Izod Impact Strength (23°C)

35.0

kJ/m²

ISO 180
Hardness

Nominal Value

Unit

Test Method

Shore Hardness (Shore D, 23°C)

85.0

ISO 868
Thermal

Nominal Value

Unit

Test Method

Deflection Temperature Under Load (1.8 MPa, Unannealed)

343

°C

ISO 75-2/Af

Glass Transition Temperature

ISO 11357-2

Onset

143

°C

Midpoint

147

°C

Melting Temperature

343

°C

ISO 11357-3

CLTE - Flow

ISO 11359-2

< 143°C

9

ppm/K

> 143°C

10

ppm/K

CLTE - Average

ISO 11359-2

< 143°C

35

ppm/K

> 143°C

85

ppm/K

Thermal Conductivity 7 (23°C)

1.3

W/m/K

ISO 22007-4
Electrical

Nominal Value

Unit

Test Method

Volume Resistivity (23°C)

1.0E+6

ohms·cm

IEC 60093
Typical Processing Information
Injection

Nominal Value

Unit

Drying Temperature

120 to 150

°C

Drying Time

3.0 to 5.0

hr

Suggested Max Moisture

0.020

%

Hopper Temperature

< 100

°C

Rear Temperature

370

°C

Middle Temperature

375 to 380

°C

Front Temperature

385

°C

Nozzle Temperature

390

°C

Mould Temperature

180 to 210

°C

Injection Notes

Runner: Die / nozzle >3mm, manifold >3.5mm
Gate: >2mm or 0.5 x part thickness

Important notes:
1) Processing conditions quoted in our datasheets are typical of those used in our processing laboratories

  • Data for mould shrinkage should be used for material comparison. Actual mould shrinkage values are highly dependent on part geometry, mould configuration, and processing conditions.
  • Mould shrinkage differs for along flow and across flow directions. “Along flow” direction is taken as the direction the molten material is travelling when it exits the gate and enters the mould.
  • Mould shrinkage is expressed as a percent change in dimension of a specimen in relation to mould dimensions.

2) Data are generated in accordance with prevailing national, international and internal standards, and should be used for material comparison. Actual property values are highly dependent on part geometry, mould configuration and processing conditions. Properties may also differ for along flow and across flow directions.

Detailed data available on our website www.victrex.com or upon request.

Notes
1Mould Temperature: 200°C, Melt Temperature: 390°C, 1.00 mm
2390°C nozzle, 200°C tool
3Block-on-Ring, 2 MPa, 1 m/s
4Block-on-Ring, 10 MPa, 1 m/s
5CS-17, 1kg
6Block-on-ring
7Average

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