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Empera® 251N

General Purpose Polystyrene

Supplied by Styrolution Group GmbH

The technical datasheet with complete property values for Empera® 251N is available to members of the Prospector Plastics Database.
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Product Description
Empera 251N is a general purpose polystyrene grade with high heat resistance and satisfactory flow properties.
General  
Material Status 
  • Commercial: Active
Availability 
  • Europe
Features 
  • General Purpose
  • Good Flow
  • High Heat Resistance
Uses 
  • Disposable Drinkware
  • Film
  • Packaging
  • Sheet
  • Tape
Agency Ratings 
RoHS Compliance 
Forms 
  • Pellets
Processing Method 
  • Foam Extrusion
  • Injection Molding
  • Sheet Extrusion
  • Thermoforming
  
Physical
Nominal Value
Unit
Test Method
Density
g/cm³
 ISO 1183
Melt Volume-Flow Rate (MVR) (200°C/5.0 kg)
in³/10min
 ISO 1133
Molding Shrinkage
%
 ISO 294-4
Water Absorption (73°F, 24 hr)
%
 ISO 62
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
psi
 ISO 527-2/1
Tensile Stress (Break)
psi
 ISO 527-2/50
Nominal Tensile Strain at Break
%
 ISO 527-2/50
Flexural Strength 2
psi
 ISO 178
Impact
Nominal Value
Unit
Test Method
Charpy Unnotched Impact Strength (73°F)
ft·lb/in²
 ISO 179/1eU
Hardness
Nominal Value
Unit
Test Method
Ball Indentation Hardness (H 358/30)
psi
 ISO 2039-1
Thermal
Nominal Value
Unit
Test Method
Heat Deflection Temperature (264 psi, Unannealed)
°F
 ISO 75-2/A
Vicat Softening Temperature
°F
 ISO 306/B50
CLTE - Flow (73 to 176°F)
in/in/°F
 DIN 53752
Thermal Conductivity
Btu·in/hr/ft²/°F
 DIN 52612
Related Terminology
This supplier and product may also be known by these terms: Lustran Polymers AG

Product names can be difficult to match. You may have searched any one of these terms to find this product: Empera® 251N, Empera 251N, Empera® , Empera, Empera251N, 251 N, 251N, PS, Polystyrene, General Purpose, Polystyrene General Purpose, PS (GPPS), PS GPPS, Polystyrene, Styrolution EUR, PolystyreneGeneralPurpose, PSGPPS, N251
Features
Features may also be described by the following terms: High Heat Resistance, Good Flow.
Uses
Uses may also be described by the following terms: Disposable Drinkware.
Agency Ratings
This plastic material has 1 certifications from the following agencies (the number in parentheses shows the number of certifications for that agency): EU (1).
Notes
1Typical properties: these are not to be construed as specifications.
20.079 in/min
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.