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    3. Round Rod in PI GR40 500 mm gray
    Standard
    Round Rod in PI GR40 500 mm gray
    Round Rod in PI GR40 500 mm gray
    PI round bar

    Round Rod in PI GR40 500 mm gray

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    PI, that is polyimide, is the most heat resistant plastic we sell. This grade has graphite blended in, 40 percent, and is the stiffest and heaviest PI grade in the catalog, developed for where dimensional stability and dry lubrication weigh heaviest.

    The graphite content makes it the stiffest grade, but also the most brittle: the elongation at break is only 1.8 percent, so the material cracks rather than bends. The tensile strength sits at 52 MPa and the material is dimensionally stable up to 325 degrees. It has no melting point and matches fire rating UL 94 V-0.

    The weakness is hydrolysis, that is hot water and steam. Where the surface has to slide dry, hold its size and take heat, this grade is hard to match.

    The round rod in PI GR40, gray, is 500 mm long and is made for turning into precision parts that have to take heat and mechanical load.

    Do you want it cut to size? Add CTS to the cart.

    Technical specifications

    Format
    Rundstång
    Additives
    Graphite
    Property Value Unit Test standard
    Density & Weight
    Density 1,59 g/cm³ ISO 1183
    Tensile Properties
    Yield Stress 52 MPa ISO 527-2
    Tensile Modulus of Elasticity 5100 MPa ISO 527-2
    Tensile Strain at Break 1,8 % ISO 527-2
    Flexural Properties
    Flexural Strength 87 MPa ISO 178
    Flexural Modulus of Elasticity 4800 MPa ISO 178
    Impact Resistance
    Charpy Notched Impact Strength 3,3 kJ/m² ISO 179
    Charpy Unnotched Impact Strength 14,2 kJ/m² ISO 179
    Hardness
    Shore D Hardness 82 Shore D Shore D
    Compressive Properties
    Compressive Strength 120 MPa ISO 604
    Compressive Modulus 1800 MPa ISO 604
    Temperature Limits
    Max. Continuous Service Temperature 290 °C
    Glass Transition Temperature 355 °C ISO 3146
    Thermal Expansion
    Coefficient of Linear Thermal Expansion 3,0 x 10⁻⁵ ISO 11359-2
    Flammability Rating
    Flammability Rating (UL 94) UL 94 V-0, motsvarande UL 94

    Värdena ovan är genomsnitt från statistiska tester som görs löpande. De anges som information och är inte bindande, om inte annat uttryckligen avtalats i ordererkännandet. För batchspecifika värden kan PlastShop tillhandahålla ett EN 10204-2.2-certifikat.

    Download the technical data sheet (PDF)