Thermoplastische KunststoffeThermoplasticsThermoplastiquesLieferprogramm HalbzeugeDelivery Program Stock ShapesProgramme d...
POM       GEHR POM-C®                                 GEHR POM-C® (Acetal)                          GEHR POM-C®       Poly...
POM                                                                                                                       ...
Technical Data Sheet                  Polyoxymethylene POM-C I. Physical Properties                                       ...
Chemical Resistance               GEHR POM-C                                conc. (%)      room temperature         60 °C ...
Chemical Resistance                         GEHR POM-C                                                      conc. (%)     ...
GEHR GmbH                                                                   GEHR Plastics, Inc.           GEHR Plastics Ho...
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Katalog pom c gehr

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Katalog pom c gehr

  1. 1. Thermoplastische KunststoffeThermoplasticsThermoplastiquesLieferprogramm HalbzeugeDelivery Program Stock ShapesProgramme de livraison semi-produits
  2. 2. POM GEHR POM-C® GEHR POM-C® (Acetal) GEHR POM-C® Polyoxymethylen besitzt eine Dauerge- Polyoxymethylene can be used in Le polyoxyméthylène possède une brauchstemperatur bis 100 °C. Die hohe temperatures up to +100 °C. The high tempé-rature d’utilisation en continu Oberflächenhärte wird nur von wenigen surface strength is only surpassed by a jusqu’à 100 °C. La dureté de surface Kunststoffen übertroffen. Aufgrund der few materials. élevée n’est dépassée que par de rares hohen Härte und der glatten Oberfläche POM shows good sliding properties and plastiques. Grâce à sa dureté élevée et besitzt POM ein gutes Gleit- und high resistance to wear and tear because à sa surface lisse, le POM présente une Verschleißverhalten. Die Neigung zu of the high strength and smooth surface. bonne tenue au glissement et à l’usure. Spannungsrissen besteht grundsätzlich There is a very low risk of stress cracks. Il ne présente, par définition, aucune nicht. Das Copolymer besitzt eine hohe POM-C (Copolymere) exhibits a high propension aux fissures sous contrainte. Thermostabilität und Chemikalienbe- thermal stability and a high resistance Le copolymère possède une thermosta- ständigkeit (hier ist besonders die ge- to chemicals (high resistance to hydro- bilité et une stabilité chimique élevées steigerte Hydrolysebeständigkeit zu be- lysis). (il convient de noter particulièrement, en achten). Properties: l’occurrence, la résistance accrue àPOM Eigenschaften: • no microporosity l’hydrolyse). • druckbeständige Qualität • high strength Propriétés : • hohe Härte und Steifigkeit • high rigidity (to -40 °C) • Qualité de résistance à la pression • hohe Zähigkeit (bis -40 °C) • high thermal stability • Dureté et rigidité élevées • hohe Wärmeformbeständigkeit • low water absorption • Grande ténacité (jusqu’à -40 °C) • geringe Wasseraufnahme • high dimension stability • Grande résistance à la déformation • hohe Dimensionsstabilität • good electrical insulating properties thermique • gutes elektrisches Isolierverhalten • very good sliding properties • Faible absorption d’eau • sehr günstiges Gleitreib- und • high resistance to solvents • Grande stabilité dimensionnelle Gleitverschleißverhalten • very high resistance to stress cracks • Bon comportement à l’isolation • hohe Beständigkeit gegen Lösungs- • not resistant to high-concentrated électrique mittel acids • Comportement très favorable au • hohe Beständigkeit gegen Span- • difficult to glue and paint frottement dynamique et à l’usure par nungsrissbildung Applications: glissement • nicht beständig gegen starke Säuren Bearings, fittings, gear wheels, parts for • Grande résistance aux solvants und Oxidationsmittel pumps, screws, bobbins, parts for the • Résistance élevée à la formation de • schlechte Verkleb- und Lackierbarkeit textile industry, medium for coating lines. fissures sous contrainte Anwendungsbeispiele: • Ne résiste pas aux acides et agents Lagerrollen und -käfige, Beschläge, d’oxydation forts Zahnräder, Pumpenkörper, Schrauben, • Mauvaise tenue à la colle et à la Bauteile in der Feinwerk- und in der peinture Textiltechnik, Träger für Lackierstraßen. Exemples d’application : Rouleaux-supports et cages de paliers, ferrures, roues dentées, corps de pompes, vis, armatures de bobines, composants pour la mécanique de précision et la technique des textiles, supports pour cabines de peinture. 42 32
  3. 3. POM W GEHR POM-C® GEHR GEHR GEHR WEARGEHR NE Vollstäbe Toleranzen POM- POM- POM- POM- ø Tolerances ELS ® ESD ® ESD-FG® 10PE ® Round Rods mm Tolérances mm min. max. kg/m kg/m kg/m kg/m kg/m Joncs pleins 3 0,012 0,012 L: 1000 / 2000 / 3000 mm 4 0,025 0,025 NE W + 0,4 5 0,032 0,032 0,031 0,032 + 0,1 Farben, Colours, Couleurs: 6 0,045 0,045 0,043 0,046 natur, natural, naturel 8 0,079 0,078 0,076 0,080 + 0,5 schwarz, black, noir 10 0,121 0,120 0,116 0,123 0,123 blau (~RAL 5002), blue, bleu 12 0,176 0,175 0,168 0,179 0,170 hellblau, light blue, bleu clair 15 0,271 0,269 0,259 0,275 0,261 elfenbein, ivory, ivoire 16 + 0,7 0,307 0,305 0,294 0,311 0,327 18 0,386 0,383 0,369 0,392 0,372 20 0,474 0,471 0,454 0,481 0,460 22 0,575 0,571 0,550 0,583 0,554 + 0,2 25 0,740 0,735 0,708 0,751 0,726 + 0,9 28 0,930 0,923 0,890 0,943 0,896 30 1,060 1,053 1,014 1,075 1,043 32 1,210 1,202 1,158 1,227 1,166 36 + 1,1 1,520 1,509 1,455 1,542 1,463 40 1,870 1,857 1,790 1,897 1,831 45 2,370 2,353 2,268 2,404 2,332 50 + 1,3 2,920 2,900 2,794 2,962 2,864 56 3,650 3,624 3,493 3,703 3,518 + 0,3 60 4,200 4,171 4,019 4,260 4,123 65 + 1,6 4,920 4,886 4,708 4,991 4,829 70 5,690 5,650 5,445 5,772 5,586 75 6,570 6,524 6,287 6,665 6,333POM + 0,4 + 2,0 80 7,460 7,408 7,139 7,567 7,314 85 8,430 8,371 8,068 8,551 8,127 + 0,5 + 2,2 90 9,430 9,364 9,025 9,566 9,258 100 + 0,6 + 2,5 11,650 11,568 11,149 11,818 11,458 110 + 0,7 + 3,0 14,150 13,640 120 16,900 16,470 + 0,8 + 3,5 125 18,300 17,641 130 19,800 19,437 135 + 0,9 + 3,8 21,350 140 22,900 150 + 1,0 + 4,2 26,350 160 + 1,1 + 4,5 30,000 165 31,200 + 1,2 + 5,0 180 37,900 200 + 1,3 + 5,5 46,800 210 51,970 230 + 1,5 + 6,2 61,900 250 72,900 300 108,700 + 7,0 350 145,600 0 400 189,700 + 10,0 500 287,400 44 32
  4. 4. Technical Data Sheet Polyoxymethylene POM-C I. Physical Properties Test method Unit Value 1. Specific gravity (ρ) ISO 1183 g/cm³ 1,39 2. Water absorption DIN 53495 % 0,2 3. Maximum permissible service temp - - - (no stronger mechanical stress involved) Upper temperature limit - °C 110 Lower temperature limit - °C -50 II. Mechanical Properties Test method Unit Value 1. Tensile strength at yield ISO 527 MPa 63 2. Elongation at yield. (εS) ISO 527 % 10 3. Tensile strength at break (σR) ISO 527 MPa - 4. Elongation at break (εR) ISO 527 % 31 5. Impact strength (an) ISO 179 kJ/m2 no break 6. Notch impact strength (ak) ISO 179 kJ/m2 6 7. Ball indentation / Rockwell hardness ISO 2039-1 MPa 135 8. Shore-D DIN 53505 85 9. Flexural strength (σB 3,5 %) ISO 178 MPa - 10. Modulus of elasticity (Et) ISO 527 MPa 2600 III. Thermal Properties Test method Unit Value 1. Vicat-softening point VST/B/50 ISO 306 °C 150 VST/A/50 ISO 306 °C - 2. Heat deflection temperature HDT/B ISO 75 °C 155 HDT/A ISO 75 °C 95 3. Coefficient of linear thermal expansion α DIN 53752 K-1∗10-4 1,1 4. Thermal conductivity at 20 °C (λ) DIN 52612 W/(m∗K) 0,31 IV. Electrical Properties Test method Unit Value 1. Volume resistivity VDE 0303 Ω∗cm ≥1013 2. Surface resistivity (Ro) VDE 0303 Ω ≥1013 3. Dielectric constant at 1MHz (εr) DIN 53483 - 3,8 4. Dielectric loss factor at 1 MHz (tanδ) DIN 53483 - 0,005 5. Dielectric strength VDE 0303 kV/mm 40 6. Tracking resistance DIN 53480 - CTI 600 V. Additional Data Test method Unit Value 1. Bond ability - - fair 2. Friction coefficient DIN 53375 - 0,35 3. Flammability UL 94 - HB 4. UV stabilisation - - fairAll values are attributes of the used raw materials.The physical data contained in this table are typical values. They are obtained on test specimens under specific conditions andrepresent average values of a large number of tests. The results obtained on this tests specimens cannot be applied to finishedparts without reservations, as behaviour is influenced by processing and shaping. Reproduction only with our definite permis-sion.Subject to change without notice. Page 1 of 1 Date: 11/04
  5. 5. Chemical Resistance GEHR POM-C conc. (%) room temperature 60 °C 1,4 Dioxane 100 o o 2-Hydroxypropionic acid 90 + - Acetic acid 100 o - Acetone 100 + o Ammonia conc. + + Ammonium chloride +/o o Amyl alcohol + Apple juice + Benzene o o Bleaching solution 12,5 Cl - - Boric acid 100 o/- - Brake fluid + Butyl acetate + o Calcium chloride + + Carbon disulphide 100 + + Carbon tetrachloride + o Chlorine, gas 100 Chlorobenzene 100 o o Chloroform - - Citric acid 10 o - Cresol Cyclohexanone 100 + Cyclohexene 100 + Diesel fuel + + Diethylene oxide, THF + + Ethyl acetate 100 o o Ethyl alcohol 96 + o Ethylene chloride 100 Food oil + + Formaldehyde, aqu 40 + + Formic acid 10 + - Frost protection agent + Fuel , aromatic free + + Glycerin 100 + o Glycol 100 + + Heating oil + + Heptane 100 + + Hydrochloric acid 10 - - Hydrochloric acid conc. - - Hydrofluoric acid 40 - Hydrogen peroxide 10 + - Hydrogen sulphide + Isopropyl alcohol 100 + + Linseed oil + + Mercurochrome - Methyl alcohol 100 + + Methyl ethyl ketone 100 o oDok.-Nr. Name Erstelldatum/Geändert am Erstellt von SeitePOM_engl Chem-Best 11.12.2007 QM 1 von 2
  6. 6. Chemical Resistance GEHR POM-C conc. (%) room temperature 60 °C Methylene chloride 100 - - Milk + + Mineral oils, aromatic free + + Nitric acid 10 - - Nitric acid 50 - - Nitrobenzene o Oxalic acid - Ozone, gas ca. 0,5 ppm - - Paraffine oil 100 + + Perchloroethylene + o Petroleum ether 100 + Petroleum, aromatic free 100 + + Phenol, aqu ca. 9 - - Phosphoric acid 50 - - Potassium hydroxide liquor 50 o Premium Fuel + + Propyl alcohol Pyridine Silicone oil + + Sodium carbonate, aqu + + Sodium chloride, aqu + + Sodium hydroxide liquor 15 + o Sodium hydroxide liquor 60 o Sodium hyrogen sulphite - - Sodium nitrate, aqu + + Sodium thiosulfate Sulphuric acid 96 - - Tetrahydrofurane 100 o o Toluene 100 + + Transformer oil + + Trichloroethylene 100 o o/- Vinegar, standard 5-10 + + Water + + Xylene + + Symbolism for the description of the chemical resistance + = resistant (only small changes of the weight, dimensions and properties. According our experiences there is no permanent damage expect). o = partly resistant (medium changes of the properties. At longer contact time there are permanent damages recommended e.g. degradation of the macro molecular structure). - = non resistant (strong and permanent degradation in short contact time e.g. stress cracking). = not tested (no tests were done, no recommendations are possible).The figures indicated here are approximate values. They may be affected by the temperature, operating time, concentration andstress level of the component involved, by mechanical loads, etc., and the user is not released therefore from the obligation ofperforming checks and trials of his own. The values indicated here have been compiled on the bases of current experiences andfindings. Any legally binding guarantee of certain properties, or any suitability for a specific application cannot be inferred fromthe present data. Dok.-Nr. Name Erstelldatum/Geändert am Erstellt von Seite POM_engl Chem-Best 11.12.2007 QM 2 von 2
  7. 7. GEHR GmbH GEHR Plastics, Inc. GEHR Plastics Hong Kong LimitedCasterfeldstr. 172 Naamans Creek Center Unit 2, 11/F,68219 Mannheim 24 Creek Circle Fonda Industrial Building, Boothwyn, PA 19061 37-39 Au Pui Wan Street Fotan, ShatinGermany USA Hong KongT: +49 - 621-87 89 - 0 T: +1 - 610 - 497 - 8941 T: +852 - 6977 - 33 18F: +49 - 621-87 89 - 200 F: +1 - 610 - 497 - 8901 F: +852 - 3013 - 9544info@gehr.de info@gehrplastics.com info@gehr.hkwww.gehr.de www.gehrplastics.com www.gehr.hkGEHR Plastics China Office GEHR Plastics Bureau France GEHR Plastics Ufficio ItaliaRoom 1003, No. 7 6 Rue de la Chapelle DIPRONew Phoenix Town Ginza 39700 Serre les Moulières Via Alessandria 5551 Feng cheng road 10152 Torino200093 ShanghaiChina France ItalyT: +86 - 21 - 51 69 28 72 T: +33 - 7 - 86 48 38 04 T: +39 - 011-24 89 507F: +86 - 21 - 60 91 93 03 F: +49 - 621 - 87 89 - 200 F: +39 - 011-24 85 733info@gehr.cn info@gehr.fr info@gehr.itwww.gehr.cn www.gehr.fr www.gehr.it 3.11.11. STOÄnderungen vorbehalten. Subject to change. Sous réserve de modifications.

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