EP-S 31 HP

EP-S 31 HP

EP-S 31 HP is a heterophasic polypropylene copolymer with an exceptional mechanical properties balance. The product has been specifically designed for the extrusion of conduit pipe, corrugated pipe and other extrusion applications.
In comparison with standard polypropylene copolymers with the same fluidity. EP-S 31 HP offers some distinct advantages:
- higher stiffness.
- superior impact resistance both at room temperature and at low temperatures.
- excellent creep and deformation resistance
- very high dimensional stability.
Because of these outstanding mechanical properties.
EP-S 31 HP can be used in demanding applications such as conduit pipes and fittings for electrical distribution and cable protection.
Corrugated pipes for automobile and machine construction, plane- and shipbuilding and for domestic appliances are another major application.
EP-S 31 HP can also be used for the extrusion blow moulding of bottles and containers and for the extrusion of corrugated board.


PROPERTIES
METHOD (b) UNIT TYPICAL VALUE (a)
Physical properties
Melt flow rate (230 °C, 2.16 kg)
Density
ISO 1133
ISO 1183
dg / min
g/cm3
1.3
0.9
Mechanical properties
Flexural modulus
Tensile strength yield
Elongation at yield
Izod Impact Strength (notched) at 23°C
at -20°C
Hardness Shore D
ISO 178
ISO R 527
ISO R 527 
ISO 180
ISO 868
N/mm2
N/mm2
%
kJ/m2
points
1350
27
8
40
8
68
Thermal properties
Vicat softening point (9.8 N)
H.D.T. (0.46 Mpa)
Accelerated oven ageing in air
(forced circulation) at 150 °C
Intemal
ISO 306/A
ISO 75/B
ISO 4577
°C 
°C
°C
hours
-55
152
100
360

EP-S 31 HP is suitable for food contact.

a) Values shown are averages and are not to be considered as product specification These values may shift slightly as additional data are accumlsted.
b) ISO test methods are the lates under the societys current procedures. All specimens are prepared by injection moulding.