Товары и услуги

Glass-Filled Self-Extinguishing PBT Crastin FR684NH1 BK591

Description


Crastin FR684NH1 BK591 from Celanese is a self-extinguishing polybutylene terephthalate (PBT) reinforced with 25% glass fiber and free of halogens. The material features high flame resistance and is intended for the production of parts by injection molding. Its distinguishing features are improved mechanical strength and dimensional stability thanks to the glass fiber reinforcement.

Advantages:

  • High flame resistance: rated V-0 per UL94
  • Good mechanical strength
  • Dimensional stability
  • Good chemical resistance
  • Improved electrical properties

Applications:


Crastin FR684NH1 BK591 is used for the production of electrical components such as switch housings, connectors and electric motor enclosures. Thanks to its chemical resistance, the material is also suitable for the chemical industry, for example for manufacturing components in contact with aggressive substances.

Glass-Filled Self-Extinguishing PBT Crastin FR684NH1 BK591
parameter name
unit
value
Physical properties:
Density
g/cm³
1.52 (ISO 1183-1)
Glass fiber content
%
25
Mold shrinkage (parallel to flow)
%
0.5 (ISO 294-4)
Mold shrinkage (transverse to flow)
%
1.3 (ISO 294-4)
Mechanical properties:
Water absorption (immersion 24 h, 23 °C)
%
0.25 (ISO 62)
Moisture absorption (air 23 °C, 50 % RH)
%
0.1 (ISO 62)
Tensile modulus
MPa
9200 (ISO 527-1/-2)
Tensile strength at break
MPa
91 (ISO 527-1/-2)
Charpy impact strength (unnotched, 23 °C)
kJ/m²
39 (ISO 179-1/1eU)
Charpy impact strength (unnotched, −30 °C)
kJ/m²
42 (ISO 179-1/1eU)
Charpy impact strength (notched, 23 °C)
kJ/m²
7 (ISO 179-1/1eA)
Charpy impact strength (notched, −30 °C)
kJ/m²
6.4 (ISO 179-1/1eA)
Elongation at break
%
2.3 (ISO 527-1/-2)
Thermal properties:
Melting temperature (Tm)
°C
223 (ISO 11357-3)
Heat deflection temperature (HDT/A, 1.8 MPa)
°C
205 (ISO 75-2)
UL 94 flammability rating (1.5 mm)
V-0 (IEC 60695-11-10)
Electrical properties:
Electric strength
kV/mm
35 (IEC 60243-1)
Comparative tracking index
V
600 (IEC 60112)
*
Typical data for this polymer class, for reference.
Указанные показатели измеряются по внутренним методикам, близким к соответствующим ISO, ГОСТ Информация носит ознакомительный характер, рекомендуем использовать техническую информацию после согласования с поставщиком и подписания нормативно-технической спецификации