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This is the free Material Data Center Datasheet of Ultramid® A3L HP - PA66 - BASF

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Mechanical properties - Thermal properties - Other properties - Processing Recommendation Injection Molding
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Product Texts
Ultramid® A3L HP is an unreinforced, impact modified, high flow, Polyamid 66 for injection molding. This grade has excellent flow and improved ambient and low temperature toughness.

Typical applications include fasteners and clamps.
Mechanical propertiesdry / condUnitTest Standard
ISO Data
Tensile Modulus 2440 / - MPa ISO 527
Yield stress 63.5 / - MPa ISO 527
Yield strain 6.2 / - % ISO 527
Nominal strain at break 28 / - % ISO 527
Charpy notched impact strength, +23°C 19 / - kJ/m² ISO 179/1eA
Charpy notched impact strength, -30°C 14 / - kJ/m² ISO 179/1eA
Thermal propertiesdry / condUnitTest Standard
ISO Data
Melting temperature, 10°C/min 262 / * °C ISO 11357-1/-3
Temp. of deflection under load, 1.80 MPa 70 / * °C ISO 75-1/-2
Temp. of deflection under load, 0.45 MPa 192 / * °C ISO 75-1/-2
Other propertiesdry / condUnitTest Standard
Density 1100 / - kg/m³ ISO 1183
Processing Recommendation Injection MoldingValueUnitTest Standard
Pre-drying - Temperature 60 °C -
Pre-drying - Time 1 - 2 h -
Processing humidity ≤0.2 % -
Melt temperature 288 - 305 °C -
Mold temperature 60 - 100 °C -
Characteristics
Processing
Injection Molding
Regional Availability
North America
Other text information
Injection molding
Nylon 66 materials must be properly dried in order to provide parts
with optimum strength and toughness. Nylon 66 materials are
hygroscopic and will become degraded by excessive moisture during the
injection molding process. For unopened bag/box, dry at 140F (60C) for
1-2 hours. For material exposed to the atmosphere, if additional
drying is needed, dry at 150F (66C) or until the moisture level is
between 0.04 - 0.20%.
PROCESSING
Melt Temperature: 288 – 305C (550 – 580F)
Mold Temperature: 60 – 100C (140 – 212F)
Injection Pressure: 35 – 125 MPa (5000 – 18000 psi)
Back Pressure: 0 – 0.35 MPa (0 – 50 psi)
Screw RPM 40 – 80
Screw Compression Ratio:3:1 – 4:1

This product can be processed over a wide range of mold
temperatures; however, for applications where aesthetics are
critical, a mold surface temperature of 60-100C (140-212F)
is recommended.

Injection pressure controls the filling of the part and should
be applied for 90% of ram travel. Packing pressure affects
the final part and can be used effectively in controlling
sink marks and shrinkage. It should be applied and maintained
until the gate area is completely frozen off.

Fast fill rates are recommended to insure uniform melt
delivery to the cavity and prevent premature freezing.
Disclaimer
Copyright Altair Engineering GmbH. Altair Engineering GmbH assumes no liability for the system to be free of errors. The user takes sole responsibility for the use of this data under the exclusion of every liability from Altair Engineering GmbH; this is especially valid for claims of compensation resulting from consequential damages. Altair explicitly points out that any decision about the application of materials must be double checked with the producer of this material. This includes all contents of this system. Copyright laws are applicable for the content of this system.
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