Din 8570 B Pdf Jun 2026

If all imperfections are within limits → weld accepted. If any exceed limits → repair (grind, re-weld, etc.) and re-inspect.

Tolerances increase as the nominal size increases. For example: Over 30 to 120 mm: ±1 mm0;9f5; Over 400 to 1000 mm: ±2 mm

±15 minutes of a degree (or approx. ±4.5 mm/m) din 8570 b pdf

| | Over up to 30 mm | Over 30 to 120 mm | Over 120 to 400 mm | Over 400 to 1000 mm | Over 1000 to 2000 mm | Over 2000 to 4000 mm | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | A | ±1 mm | ±1 mm | ±2 mm | ±3 mm | ±4 mm | ±5 mm | | B | ±1 mm | ±2 mm | ±3 mm | ±4 mm | ±6 mm | ±8 mm | | C | ±2 mm | ±3 mm | ±4 mm | ±6 mm | ±8 mm | ±11 mm | | D | ±4 mm | ±6 mm | ±8 mm | ±11 mm | ±14 mm | ±18 mm |

While the search for "DIN 8570 B PDF" is common, the actual reference is to the now-withdrawn DIN 8570 standard and its "B" tolerance class. This standard has been officially replaced by the international standard . If all imperfections are within limits → weld accepted

DIN 8570 is a German standard related to inspection, maintenance, and acceptance of gear transmissions (gears and gearboxes). Part B (commonly written as DIN 8570 B) defines requirements and procedures for acceptance testing and documentation of gear units after manufacture or repair, focusing on quality criteria such as noise, vibration, geometry, and operational performance.

±20 minutes of a degree (or approx. ±6 mm/m) For example: Over 30 to 120 mm: ±1

B. Normative references

: The official publisher of DIN standards.

Over 2000 to 4000 mm: ±4 mm 18;write_to_target_document7;default0;348;18;write_to_target_document1a;_TwvuaaGfMc-O4-EPja-ciAo_20;54; How to Access the PDF 0;16;

Suppose your project specification strictly says: “All fillet welds to DIN 8570-B2, inspection by VT per DIN EN 13018.” You cannot simply say “we use ISO 5817 instead” without customer approval. Follow this workflow: