Zytel® 77G33L BK031

Alternative and trade names
PA612-GF33
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Description

DuPont™ Zytel® LCPA long chain polyamide resins provide an innovative and growing portfolio of flexible polymers with excellent thermal, chemical, and hydrolysis resistance. The diverse selection of Zytel® LCPA grades is targeted for a range of performance characteristics, balancing temperature resistance, flexibility and low permeation.Zytel® 77G33L BK031 is a 33% glass fiber reinforced, black polyamide 612 resin for injection molding.

Equivalent Materials

This material data has been provided by Matmatch.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValueComment

Density

23.0 °C

1.32 g/cm³

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ISO 1183

Water absorption

23.0 °C

0.1 %

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Sim. to ISO 62 | Immersion 24h

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

9.5 GPa

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ISO 527-1/-2

Elongation

23.0 °C

3 %

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ISO 527-1/-2

Flexural modulus

23.0 °C

8.5 GPa

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ISO 178

Flexural strength

23.0 °C

250 MPa

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ISO 178

Impact strength, Charpy notched

-40.0 °C

12 kJ/m²

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ISO 179/1eA

23.0 °C

13 kJ/m²

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ISO 179/1eA

Impact strength, Izod notched

23.0 °C

60 kJ/m²

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ISO 180/1U

Impact strength, Izod unnotched

-40.0 °C

11 kJ/m²

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ISO 180/1A

23.0 °C

13 kJ/m²

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ISO 180/1A

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Poisson's ratio

23.0 °C

0.34 [-]

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Tensile strength

23.0 °C

170 MPa

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ISO 527-1/-2

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

1.4E-5 1/K

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ISO 11359-1/-2 | 23 - 55°C

Coefficient of thermal expansion, transverse

23.0 °C

1.6E-4 1/K

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ISO 11359-1/-2 | 55 - 160°C

Glass transition temperature

65 °C

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ISO 11357-1/-2 | 18°F/min

Heat deflection temperature, 1.80 MPa

200 °C

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ISO 75-1/-2

Melting point

218 °C

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ISO 11357-1/-3 | 18°F/min

Relative temperature index, electrical

120 °C

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UL 746B | 120mil

Relative temperature index, mechanical strength

120 °C

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UL 746B | 120mil

Flammability

Burning Behav. at 60mil nom. thickn.: HB class, Thickness tested: 1.5 mm, UL recognition: yes -, Burning Behav. at thickness h: HB class, Thickness tested: 0.71 mm, UL recognition: yes -, Glow Wire Flammability Index, 30mil: 675 °C, Glow Wire Flammability Index, 60mil: 675 °C, Glow Wire Flammability Index, 120mil: 700 °C, Glow Wire Ignition Temperature, 30mil: 700 °C, Glow Wire Ignition Temperature, 60mil: 700 °C, Glow Wire Ignition Temperature, 120mil: 725 °C, FMVSS Class: B -, Burning rate, Thickness 1 mm: 23 mm/min

Electrical

PropertyTemperatureValueComment

Comparative tracking index

23.0 °C

600 V

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IEC 60112

Rheological Properties

PropertyTemperatureValueComment

Shrinkage

23.0 °C

0.3 %

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ISO 294-4, 2577

Shrinkage, transverse

23.0 °C

0.9 %

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ISO 294-4, 2577

Technological properties

Property
Fillers

33% Glass Fiber

Processing methods

Drying Recommended: yes, Drying Temperature: 80°C, Drying Time, Dehumidified Dryer: 2-4h, Processing Moisture Content: ≤0.2%, Melt Temperature Optimum: 290°C, Min. melt temperature: 280°C, Max. melt temperature: 300°C, Max. screw tangential speed: 0.2m/s, Mold Temperature Optimum: 100°C, Min. mold temperature: 70°C, Max. mold temperature: 120°C, Hold pressure range: 50-100MPa, Hold pressure time: 3s/mm, Ejection temperature: 210°C