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This is the free Material Data Center Datasheet of Ultraform® H4320 AT R01 - POM - BASF

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Product Texts
High-molecular-weight grade for the extrusion of semifinished product; particularly thick walled product can be extruded at high output rates; the material also features high thermal stability.

Abbreviated designation according to ISO 1043-1: POM
Designation according to ISO 29988-POM-K,,E-GNR,1-2
Processing/Physical CharacteristicsValueUnitTest Standard
ISO Data
Melt volume-flow rate, MVR 2.4 cm³/10min ISO 1133
Temperature 190 °C -
Load 2.16 kg -
Molding shrinkage, parallel 2.2 % ISO 294-4, 2577
Molding shrinkage, normal 2.1 % ISO 294-4, 2577
Mechanical propertiesValueUnitTest Standard
ISO Data
Tensile Modulus 2400 MPa ISO 527
Yield stress 60 MPa ISO 527
Yield strain 11 % ISO 527
Nominal strain at break 31 % ISO 527
Tensile creep modulus, 1h 1800 MPa ISO 899-1
Tensile creep modulus, 1000h 1300 MPa ISO 899-1
Charpy impact strength, +23°C 280 kJ/m² ISO 179/1eU
Charpy impact strength, -30°C 250 kJ/m² ISO 179/1eU
Charpy notched impact strength, +23°C 6.5 kJ/m² ISO 179/1eA
Charpy notched impact strength, -30°C 5.5 kJ/m² ISO 179/1eA
Thermal propertiesValueUnitTest Standard
ISO Data
Melting temperature, 10°C/min 163 °C ISO 11357-1/-3
Temp. of deflection under load, 1.80 MPa 90 °C ISO 75-1/-2
Temp. of deflection under load, 0.45 MPa 155 °C ISO 75-1/-2
Vicat softening temperature, B 150 °C ISO 306
Coeff. of linear therm. expansion, parallel 120 E-6/K ISO 11359-1/-2
Burning Behav. at 1.5 mm nom. thickn. HB class IEC 60695-11-10
Thickness tested 1.6 mm -
Yellow Card available yes - -
Burning Behav. at thickness h HB class IEC 60695-11-10
Thickness tested 0.8 mm -
Yellow Card available yes - -
Oxygen index 15 % ISO 4589-1/-2
Electrical propertiesValueUnitTest Standard
ISO Data
Relative permittivity, 100Hz 3.8 - IEC 62631-2-1
Relative permittivity, 1MHz 3.8 - IEC 62631-2-1
Dissipation factor, 100Hz 10 E-4 IEC 62631-2-1
Dissipation factor, 1MHz 50 E-4 IEC 62631-2-1
Volume resistivity 1E11 Ohm*m IEC 62631-3-1
Surface resistivity 1E13 Ohm IEC 62631-3-2
Electric strength 40 kV/mm IEC 60243-1
Comparative tracking index 600 - IEC 60112
Other propertiesValueUnitTest Standard
Water absorption 1 % Sim. to ISO 62
Humidity absorption 0.25 % Sim. to ISO 62
Density 1400 kg/m³ ISO 1183
Processing Recommendation Injection MoldingValueUnitTest Standard
Pre-drying - Temperature 100 °C -
Pre-drying - Time 3 h -
Processing humidity ≤0.2 % -
Melt temperature 190 - 230 °C -
Mold temperature 60 - 120 °C -
Characteristics
Processing
Injection Molding, Profile Extrusion, Sheet Extrusion, Other Extrusion
Delivery form
Pellets
Additives
Release agent
Features
Thermal Stability
Regional Availability
Other text information
Injection molding
PREPROCESSING
Pre/Post-processing, max. allowed water content: .2 %
Pre/Post-processing, Pre-drying, Temperature: 100 °C
Pre/Post-processing, Pre-drying, Time: 3 h

PROCESSING
injection molding, Melt temperature, range: 190 - 230 °C
injection molding, Melt temperature, recommended: 200 °C
injection molding, Mold temperature, range: 60 - 120 °C
injection molding, Mold temperature, recommended: 90 °C
injection molding, Dwell time, thermoplastics: 10 min

Processing

Usual single-flighted three-section screws with an effective screw length of at least 15 D, better 20 - 23 D are suitable for the injection molding of Ultraform.

Pretreatment

Granules or pellets in original packaging can be processed without any special pretreatment. Granules or pellets which have become moist due to prolonged or incorrect storage (e.g. by formation of condensed water) must be dried in dehumidifying or recirculating air dryers for approx. 3 hours at about 100 - 110 °C. The moisture content should not exceed 0.2 %.


Postprocessing

If parts were produced at a comparatively low mold temperature (e.g. in order to obtain short cycle times) and must not change their geometry in use thermal postprocessing inducing dimensional changes by postcrystallization may be necessary. In such cases parts should be stored in an oven with recirculated air at temperatures of 100 - 130 °C until dimensions don't change significantly any further. The time needed for this has to be determined experimentally.
Other extrusion
PREPROCESSING
Pre/Post-processing, max. allowed water content: .2 %
Pre/Post-processing, Pre-drying, Temperature: 100 °C
Pre/Post-processing, Pre-drying, Time: 3 h

PROCESSING
Extrusion, Prepreg, Melt temperature: 175 - 180 °C
Extrusion, Pipes, Melt temperature: 175 - 180 °C

Processing

Ultraform can be processed to particular advantage using three-section screws having a total length L of 20 - 25 D and a constant pitch of about 1 D. However short-compression zone screws may also be used.

Pretreatment

Granules or pellets in original packaging can be processed without any special pretreatment. Granules or pellets which have become moist due to prolonged or incorrect storage (e.g. by formation of condensed water) must be dried in dehumidifying or recirculating air dryers for approx. 3 hours at about 100 - 110 °C. The moisture content should not exceed 0.2 %.

Postprocessing

Due to the different solidification and cooling of the melt which varies according to time and place stresses may arise, especially in the case of large wall thicknesses. These stresses can be removed by subsequent heat treatment. Tempering is essential when high demands are placed on dimensional stability. It can be carried out in air, liquid wax or oil at temperatures of 130 - 150, usually 140 - 145 °C. Lower temperatures are not effective. Duration: 10 minutes per 1 mm wall thickness.
Profile extrusion
PREPROCESSING
Pre/Post-processing, max. allowed water content: .2 %
Pre/Post-processing, Pre-drying, Temperature: 100 °C
Pre/Post-processing, Pre-drying, Time: 3 h

PROCESSING
Extrusion, Profiles, Melt temperature: 175 - 180 °C

Processing

Ultraform can be processed to particular advantage using three-section screws having a total length L of 20 - 25 D and a constant pitch of about 1 D. However short-compression zone screws may also be used.

Pretreatment

Granules or pellets in original packaging can be processed without any special pretreatment. Granules or pellets which have become moist due to prolonged or incorrect storage (e.g. by formation of condensed water) must be dried in dehumidifying or recirculating air dryers for approx. 3 hours at about 100 - 110 °C. The moisture content should not exceed 0.2 %.

Postprocessing

Due to the different solidification and cooling of the melt which varies according to time and place stresses may arise, especially in the case of large wall thicknesses. These stresses can be removed by subsequent heat treatment. Tempering is essential when high demands are placed on dimensional stability. It can be carried out in air, liquid wax or oil at temperatures of 130 - 150, usually 140 - 145 °C. Lower temperatures are not effective. Duration: 10 minutes per 1 mm wall thickness.
Sheet extrusion
PREPROCESSING
Pre/Post-processing, max. allowed water content: .2 %
Pre/Post-processing, Pre-drying, Temperature: 100 °C
Pre/Post-processing, Pre-drying, Time: 3 h

PROCESSING
Extrusion, Plates, Melt temperature: 175 - 180 °C

Processing

Ultraform can be processed to particular advantage using three-section screws having a total length L of 20 - 25 D and a constant pitch of about 1 D. However short-compression zone screws may also be used.

Pretreatment

Granules or pellets in original packaging can be processed without any special pretreatment. Granules or pellets which have become moist due to prolonged or incorrect storage (e.g. by formation of condensed water) must be dried in dehumidifying or recirculating air dryers for approx. 3 hours at about 100 - 110 °C. The moisture content should not exceed 0.2 %.

Postprocessing

Due to the different solidification and cooling of the melt which varies according to time and place stresses may arise, especially in the case of large wall thicknesses. These stresses can be removed by subsequent heat treatment. Tempering is essential when high demands are placed on dimensional stability. It can be carried out in air, liquid wax or oil at temperatures of 130 - 150, usually 140 - 145 °C. Lower temperatures are not effective. Duration: 10 minutes per 1 mm wall thickness.
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