VDA 238-207 (09/2024)

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VDA 238-207 Prüfung der Empfindlichkeit höchstfester Flacherzeugnisse aus Stahl
gegenüber wasserstoffinduzierter Rissbildung / Testing of the susceptibility of advanced high strength steel sheets to hydrogen-induced cracking / Bestimmung des diffusiblen Wasserstoffgehalts für beschichtete und unbeschichtete Stahl-Flachprodukte für die Warm- und Kaltumformung / Determination of the diffusible hydrogen content of coated and uncoated steel flat products for hot- and cold forming (09/2024)

Since hydrogen embrittlement can lead to safety relevant issues this document describes how to measure the diffusible hydrogen content of hot forming and cold forming steels by means of thermally activated effusion of hydrogen.

It is used for material and coating approval of press-hardened and cold formable steels.