Iso 20457 Tolerance Table Pdf -

Note: These are illustrative values — always refer to the full standard for critical applications.

ISO 20457 uses to define the achievable accuracy based on the manufacturing process and material properties. iso 20457 tolerance table pdf

(e.g., PP, PE, PA66) have high, directional shrinkage. Note: These are illustrative values — always refer

ISO 20457 specifies the possible manufacturing tolerances for plastic molded parts. It applies to injection molding, compression molding, transfer molding, and rotational molding of thermoplastic and thermosetting materials. Note: All values below are in millimeters (

To ensure your manufacturer interprets your designs correctly, follow these documentation standards on your engineering prints:

Below is a simplified reference table mapping the nominal dimensions (mm) against standard Tolerance Grades (TG) for Series W (Tool-Dependent) dimensions. Note: All values below are in millimeters ( ± mmplus or minus mm

). For the definitive, legally binding matrix, always consult the official ISO 20457 PDF documentation. Nominal Dimension (mm) 3 to 6 6 to 10 10 to 18 18 to 30 30 to 50 50 to 80 80 to 120 120 to 180 180 to 250 Factors Influencing Plastic Molded Tolerances