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Wefapress ST 1000® PE-UHMW
Categories: Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); UHMW PE (Ultra High Molecular Weight PE)

Material Notes: St 1000® (DIN16972 TG2) is an ultra high molecular weight low density polyethylene (PE-UHMW) with a molecular weight of approx. 4.4 - 9.2 million g / mol. By using specially selected additives, it is possible to positively influence the material St 1000® according to the respective requirements. This is done mainly through the use of lubricants and biodegradable oils. Colors according to RAL-K7: green (4004), natural colors (7000), black (6000). Properties: FDA approved, good lubricity, high chemical resistance, high wear resistance, no moisture absorption, conforming to EU 10/2011 (as FSP version), very good impact resistance.

Uses: power transmission, Components for the chemical industry, Components for the food industry, Components for the pharmaceutical industry, Components for agricultural machinery, seals, conveying star, guide rails, Sliding elements with high wear, resistance, Sliding profiles, plain bearings, slide rails, Wet-end components of paper machines, pump, shock and impact stressed parts, Transport and conveyor screws. Industry sectors: agribusiness, Chemical industry, Conveyor technology and automation, Beverage and bottling industry, Harbor and fender construction, Mechanical and plant engineering, Food industry, paper industry.

Information provided by Wefapress.

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Physical PropertiesMetricEnglishComments
Density 0.940 g/cc0.0340 lb/in³DIN 53479
Moisture Absorption <= 0.0100 %<= 0.0100 %
Molecular Weight >= 4.40e+6 g/mol>= 4.40e+6 g/mol
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 64 - 67
@Time 15.0 sec
64 - 67
@Time 0.00417 hour
DIN 53505
Ball Indentation Hardness 38.0 MPa
@Time 30.0 sec
5510 psi
@Time 0.00833 hour
DIN ISO 2039 Teil 1
Tensile Strength 27.0 MPa3920 psiDIN 53455
Tensile Strength, Ultimate 40.5 MPa5870 psiDIN 53455
Elongation at Break 400 %400 %DIN ISO / R 527
Modulus of Elasticity 0.700 GPa102 ksiDIN 53457
1% Secant Modulus 1.00 MPa145 psiEU 1935/2004 - EU 10/2011 (FSP Quality)
Charpy Impact, Notched 8.00 - 14.0 J/cm²38.1 - 66.6 ft-lb/in²DIN 53457
Coefficient of Friction 0.10 - 0.200.10 - 0.20
Sand Slurry 100100% Abrasion
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+15 ohm-cm1.00e+15 ohm-cmIEC 60093
Surface Resistance 1.00e+14 ohm1.00e+14 ohmIEC 60093
Dielectric Strength 45.0 kV/mm1140 kV/inIEC 60243
 
Thermal PropertiesMetricEnglishComments
CTE, linear 200 µm/m-°C111 µin/in-°FDIN ISO 11359
Specific Heat Capacity 1.80 J/g-°C0.430 BTU/lb-°F
Thermal Conductivity 0.420 W/m-K2.91 BTU-in/hr-ft²-°F
Melting Point 130 - 135 °C266 - 275 °FDTA
Maximum Service Temperature, Air 47.0 °C117 °FDimensional Stability; DIN 53461
 80.0 °C176 °FContinuous Application Temp.
Vicat Softening Point 79.0 °C174 °FDIN 53460
Minimum Service Temperature, Air -200 °C-328 °F
Flammability, UL94 HBHB
 
Compliance PropertiesMetricEnglishComments
FDA YesYes

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