Chemlon® 257 H

Category: Nylon 6 , Polyamide 6
Manufacturer: Teknor Apex Company (Chem Polymer)
Trademark: Chemlon®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: UMsA0q_Chemlon-257-H.pdf
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Chemlon® 257 H is a Polyamide 6 (Nylon 6) material. It is available in Asia Pacific, Europe, or North America for extrusion or injection molding. Primary attribute of Chemlon® 257 H: Flame Rated.

Typical application of Chemlon® 257 H: Automotive
General Information
Uses
  • Automotive Applications
Forms
  • Pellets
Processing Method
  • Extrusion
  • Injection Molding
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.08g/cm³ASTM D792
Melt Mass-Flow Rate (MFR) (235°C/1.0 kg)1.0g/10 minASTM D1238
Molding Shrinkage - Flow 1.6 to 2.0%ASTM D955
Water Absorption (24 hr)1.1%ASTM D570
HardnessNominal ValueUnitTest Method
Rockwell Hardness (R-Scale)73ASTM D785
MechanicalNominal ValueUnitTest Method
Tensile Strength 60.0MPaASTM D638
Tensile Elongation ASTM D638
    Yield 5.0%
    Break 130%
Flexural Modulus 1860MPaASTM D790
Flexural Strength 62.1MPaASTM D790
ImpactNominal ValueUnitTest Method
Notched Izod Impact (23°C)760J/mASTM D256
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load (1.8 MPa, Unannealed)51.7°CASTM D648
Melting Temperature 214°C
CLTE - Flow 8.5E-5cm/cm/°CASTM D696
ElectricalNominal ValueUnitTest Method
Volume Resistivity 1.0E+14ohms·cmASTM D257
Dielectric Strength (3.00 mm)12kV/mmASTM D149
Comparative Tracking Index (CTI) 600VUL 746
FlammabilityNominal ValueUnitTest Method
Flame Rating (0.810 mm)HBUL 94
Oxygen Index 21%ASTM D2863
InjectionNominal ValueUnit
Drying Temperature 79.4°C
Suggested Max Moisture 0.20%
Suggested Max Regrind 25%
Rear Temperature 218 to 235°C
Middle Temperature 229 to 252°C
Front Temperature 241 to 260°C
Nozzle Temperature 241 to 260°C
Processing (Melt) Temp 241 to 260°C
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