ENGINEERING BULLETIN #124

Cross-Reference of American with German & European Standards

Chart key:

• AISI = American Iron and Steel Institute;
• UNS No. = Unified Numbering System
• Werkstoff No. = German “Werkstoff” numbering system (Widely used in Europe)
• DIN = Deutsches Institut für Normung (the German Institute for Standardization)

Note:
a) Though the information presented in this chart comes from a respectable source, it is intended to be used only as a cross-reference guidance for selecting/specifying appropriate alloy for the hose assembly.

b) UNS chemistries generally overlap the German standards shown but they are NOT identical. So, when the customer requires DIN certification of raw material, it can be re-certified by the producing mill, which can provide a certificate of conformance.