Din 16742 - Tg5 Official

| Feature depth (mm) | Recommended draft (per side) | |--------------------|-------------------------------| | 0 – 10 | 0.5° – 1.0° | | 10 – 30 | 1.0° – 1.5° | | 30 – 100 | 1.5° – 2.0° | | Over 100 | 2.0°+ |

Choose materials with low, predictable shrinkage rates (e.g., POM, PA66 + 30% GF) to make achieving TG5 more attainable.

For precision requirements (e.g., bearing bosses, mating surfaces), individual GD&T notes must override the default. din 16742 - tg5

+-----------------------------------------------------------+ | DIN 16742 FRAMEWORK | +-----------------------------------------------------------+ | | v v Tolerance Groups (TG1 - TG9) Dimension Classes (Based on material properties) (Tool-Fixed vs. Non-Tool-Fixed) Deciphering Tolerance Group 5 (TG5)

TG5 is typically applied to parts that require a reliable fit in mechanical assemblies, such as housings for electronics, automotive interior components, and consumer appliances. | Feature depth (mm) | Recommended draft (per

Pekago and other major manufacturers often list as their standard for high-quality injection molding. It provides a balance between functional accuracy and production cost. Key characteristics of TG5 include:

. These groups (ranging from TG1 to TG9) categorize the level of precision achievable based on the material's molding characteristics and the complexity of the part. Xometry Pro TG5 Classification : Often referred to as the standard for high-precision injection molding Non-Tool-Fixed) Deciphering Tolerance Group 5 (TG5) TG5 is

The sum (P_g = P_1 + P_2 + P_3 + P_4) — after applying the cost‑series adjustment (P_5) — yields a value from 1 to 9, which directly indicates the achievable tolerance group: a sum of corresponds to TG5 .

DIN 16742 is the international benchmark standard for determining dimensional tolerances and variations in molded plastic parts. Released to replace the older DIN 16901 standard, it applies to injection molding, compression molding, and transfer molding of thermoplastic and thermosetting materials.

Place the parting line on a non-critical surface, as the dimensions across it are less precise.

While TG1 or TG2 might be used for stable engineering plastics like ABS or Polycarbonate (PC), TG5 is frequently applied to: