is a withdrawn German standard for general tolerances in welded structures that has been superseded by DIN EN ISO 13920 .
Though heavily relied upon in legacy design files and maintenance projects, . For newer international supply chains, the global equivalent is ISO 13920 Class B , which preserves nearly identical mathematical tolerances for linear and angular measurements. 📊 Linear Dimensions Tolerances (Class B)
Tolerance values increase based on the nominal dimension (length, width, height). din 8570 b pdf
Class B provides specific +/- deviations in millimeters based on the nominal size of the structure. For example, for measurements up to 30mm, the tolerance is ±1mm; for ranges between 400mm and 1000mm, it increases to ±3mm.
Accessing an official, high-resolution is crucial for several segments of the manufacturing lifecycle: is a withdrawn German standard for general tolerances
Ideal for items where tolerances of several millimeters are acceptable, providing an economical balance between accuracy and production speed. Where to Find a DIN 8570-1 PDF (B Class)
Because the standard is withdrawn, no official e-shop will sell it. However, you have three legal avenues: 📊 Linear Dimensions Tolerances (Class B) Tolerance values
Official copies of the current equivalent standard can be purchased through authorized distributors: 0;16; : The official source for DIN standards.
Class A (Fine) requires specialized fixtures, sequence welding, and post-weld straightening, which skyrockets labor costs. Class B is highly achievable using standard, professional welding practices.
| | 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 |
. If you are looking for current technical specifications for new projects, you should refer to ISO 13920 Class B (linear/angular dimensions) or (straightness, flatness, and parallelism). Key Details of DIN 8570 Class B