The choice of tolerance class (e.g., DIN 8570-B) should be based on the specific functional requirements of the welded structure. DIN 8570-En-Iso-13920-1996 | PDF - Scribd
Simplification of drawings by removing the need for individual tolerance specifications for every dimension.
It is a German national standard titled "General tolerances for welded structures; linear and angular dimensions" (Allgemeintoleranzen für Schweißkonstruktionen; Längen- und Winkelmaße). It specifies general tolerances for linear and angular dimensions on engineering drawings for welded components. If specific tolerances are not indicated on a drawing, this standard defines the permitted deviations. This allows fabricators to work efficiently within defined, customary workshop accuracies. din 8570 b pdf
The official publisher of German standards. You can search for "DIN 8570" or "DIN EN ISO 13920" to buy the latest version.
Quality inspectors have a clear, universally recognized matrix to accept or reject parts, eliminating disputes between the client and the manufacturer. Modern Status: DIN 8570 vs. ISO 13920 The choice of tolerance class (e
While not identical, (Steel) and ISO 10042 (Aluminum) are the functional successors. Most companies have issued internal bridging documents that map old DIN 8570-B levels to new ISO quality levels (e.g., DIN 8570-B2 ≈ ISO 5817 Quality Level C). Download the ISO 5817 PDF from your national standards body instead.
Thus, the search for a historic PDF remains legitimate for: It specifies general tolerances for linear and angular
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There is no evidence of a Part 2 in this series.
The designation "B" in specifies a particular accuracy class for linear and angular dimensions . Most welded structures do not require the high precision of machined parts, so DIN 8570 defines four classes based on "customary workshop accuracy": Class A : Fine (high accuracy).
To purchase the active equivalent, ISO 13920.