Delrin® 520MP NC010

Alternative and trade names
POM-SD20
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Description

Common features of Delrin® acetal resins include mechanical and physical properties such as high mechanical strength and rigidity, excellent fatigue and impact resistance, as well as resistance to moisture, gasoline, lubricants, solvents, and many other neutral chemicals. Delrin® acetal resins also have excellent dimensional stability and good electrical insulating characteristics. They are naturally resilient, self-lubricating, and available in a variety of colors and speciality grades. Delrin® acetal resin typically is used in demanding applications in the automotive, domestic appliances, sports, industrial engineering, electronics, and consumer goods industries.Delrin® 520MP is a medium viscosity acetal homopolymer containing 20% Teflon® PTFE Micropowder lubricant. It is designed for applications requiring low wear and friction against steel, itself, or other plastics.

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

1.54 g/cm³

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ISO 1183

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

2.8 GPa

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ISO 527-1/-2

Elongation

23.0 °C

15 %

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ISO 527-1/-2

Elongation at yield

23.0 °C

13 %

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ISO 527-1/-2

Flexural modulus

23.0 °C

2.7 GPa

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ISO 178

Hardness, Rockwell M

23.0 °C

85 [-]

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ISO 2039-2

Hardness, Rockwell R

23.0 °C

121 [-]

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ISO 2039-2

Impact strength, Charpy notched

-6.0 °C

4 kJ/m²

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ISO 179/1eA

23.0 °C

4 kJ/m²

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ISO 179/1eA

Impact strength, Charpy unnotched

23.0 °C

70 kJ/m²

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ISO 179/1eU

Impact strength, Izod unnotched

23.0 °C

4 kJ/m²

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ISO 180/1A

Poisson's ratio

23.0 °C

0.37 [-]

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Yield strength

23.0 °C

53 MPa

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ISO 527-1/-2

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

9E-5 1/K

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ISO 11359-1/-2 | -40 - 23°C

Coefficient of thermal expansion, transverse

23.0 °C

9E-5 1/K

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ISO 11359-1/-2 | -40 - 23°C

Heat deflection temperature, 0.45 MPa

160 °C

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ISO 75-1/-2

Heat deflection temperature, 1.80 MPa

94 °C

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ISO 75-1/-2

Melting point

178 °C

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ISO 11357-1/-3 | 18°F/min

Relative temperature index, electrical

105 °C

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UL 746B | 120mil

Relative temperature index, mechanical impact

85 °C

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UL 746B | 120mil

Relative temperature index, mechanical strength

90 °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: 3 mm, UL recognition: yes -, FMVSS Class: B -, Burning rate, Thickness 1 mm: 37 mm/min

Rheological Properties

PropertyTemperatureValueComment

Melt mass-flow rate

8 g/10min

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ISO 1133 | 190°C/2.16kg

Shrinkage

23.0 °C

1.9 %

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ISO 294-4, 2577

Shrinkage, transverse

23.0 °C

1.5 %

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ISO 294-4, 2577

Technological properties

Property
Fillers

20% PTFE

Processing methods

Drying Recommended: yes, Drying Temperature: 80°C, Drying Time, Dehumidified Dryer: 2-4h, Processing Moisture Content: ≤0.2%, Melt Temperature Optimum: 215°C, Min. melt temperature: 210°C, Max. melt temperature: 220°C, Mold Temperature Optimum: 90°C, Min. mold temperature: 80°C, Max. mold temperature: 100°C, Hold pressure range: 80-100MPa, Hold pressure time: 8s/mm