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Celcon® M25 Datasheet

Acetal (POM) Copolymer

Supplied by Celanese Corporation

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Product Description
Celcon® acetal copolymer grade M25 is a high molecular weight, higher toughness and impact resistance grade primarily used for extrusion and selected injection molding applications.

Chemical abbreviation according to ISO 1043-1: POM

Please also see Hostaform® C 2521.
General  
Material Status 
  • Commercial: Active
Availability 
  • Latin America
  • North America
 
Features 
  • Good Toughness
  • High Molecular Weight
 
RoHS Compliance 
Automotive Specifications 
Processing Method 
  • Extrusion
  • Injection Molding
 
Multi-Point Data 
  • Isothermal Stress vs. Strain (ISO 11403-1)
Resin ID (ISO 1043)
  • POM
Physical
Nominal Value
Unit
Test Method
Specific Gravity
     
--
 
ASTM D792
--
g/cm³
ISO 1183
Melt Mass-Flow Rate (MFR)
g/10 min
ASTM D1238
Melt Volume-Flow Rate (MVR) (190°C/2.16 kg)
in³/10min
ISO 1133
Molding Shrinkage
     
Flow
in/in
ASTM D955
Across Flow
in/in
ASTM D955
Across Flow
%
ISO 294-4
Flow
%
ISO 294-4
Water Absorption
    ISO 62
Saturation, 73°F
%
 
Equilibrium, 73°F, 50% RH
%
 
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
psi
ISO 527-2/1A/1
Tensile Strength
     
Yield, -40°F
psi
ASTM D638
Yield, 73°F
psi
ASTM D638
Yield, 160°F
psi
ASTM D638
Yield
psi
ISO 527-2/1A/50
Tensile Strain (Yield)
%
ISO 527-2/1A/50
Tensile Creep Modulus
    ISO 899-1
1 hr
psi
 
1000 hr
psi
 
Flexural Modulus (73°F)
psi
ISO 178
Impact
Nominal Value
Unit
Test Method
Charpy Notched Impact Strength (73°F)
ft·lb/in²
ISO 179/1eA
Charpy Unnotched Impact Strength
    ISO 179/1eU
-22°F
ft·lb/in²
 
73°F, Partial Break
ft·lb/in²
 
Notched Izod Impact Strength (73°F)
ft·lb/in²
ISO 180/1A
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load
     
264 psi, Unannealed
°F
ASTM D648
264 psi, Unannealed
°F
ISO 75-2/A
Melting Temperature
     
-- 2
°F
ISO 11357-3
--
°F
ASTM D3418
CLTE
    ISO 11359-2
Flow
in/in/°F
 
Transverse
in/in/°F
 
Electrical
Nominal Value
Unit
Test Method
Volume Resistivity
ohm·cm
ASTM D257
Fill Analysis
Nominal Value
Unit
Test Method
Density of Melt
lb/ft³
Internal Method
Ejection Temperature
°F
Internal Method
Specific Heat Capacity of Melt
Btu/lb/°F
Internal Method
Thermal Conductivity of Melt
Btu·in/hr/ft²/°F
Internal Method
Related Terminology
This supplier and product may also be known by these terms: Celcom
Features
Features may also be described by the following terms: High Molecular Weight, High MW, Good Toughness, Tough.
Automotive Specifications
This plastic material has approval for 15 automotive specifications from the following agencies (the number in parentheses shows the number of specifications for that agency): DELCO PROD (1), CHRYSLER (2), DELCO (1), DELPHI (1), VALEO (2), CHEVROLET (3), GM (2), FORD (3).
Available Documents
Technical Datasheet - ASTM (English)
Technical Datasheet - ISO (English)
Injection
Nominal Value
Unit
 
Drying Temperature
°F
 
Drying Time
hr
 
Rear Temperature
°F
 
Middle Temperature
°F
 
Front Temperature
°F
 
Nozzle Temperature
°F
 
Processing (Melt) Temp
°F
 
Mold Temperature
°F
 
Injection Pressure
psi
 
Injection Rate
 
 
Holding Pressure
psi
 
Back Pressure
psi
 
Injection Notes
Manifold Temperature: 180 to 200°C
Zone 4 Temperature: 190 to 200°C
Notes
1Typical properties: these are not to be construed as specifications.
210°C/min
 
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The information presented on this datasheet was acquired by UL Prospector from the producer of the material. UL Prospector makes substantial efforts to assure the accuracy of this data. However, UL Prospector assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.