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AISI S909 – Test Standard for Determining the Web Crippling Strength of Cold-Formed Steel Flexural Members


This standard establishes procedures for conducting tests to determine the nominal web crippling strength (resistance) of cold-formed steel flexural members.

This standard describes the procedure for determining the following web crippling strengths:

  • interior one-flange loading
  • end one-flange loading
  • interior two-flange loading
  • end two-flange loading


nominal web crippling strength, cold-formed steel flexural member, test standard, American Iron and Steel Institute, AISI

AISI S909 Accredited Laboratory

Applied Testing & Geosciences, LLC is accredited for performing tests using the AISI S909 standard.

Contact us for more information.