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A Design Study in Steel - Cast Connex Steel Construction Connector

Connector Performance Requirements

A structural connector in building construction has to meet stringent building code requirements.

Steel Connector
The  mechanical strength requirements were-  

  • Ultimate tensile strength =
     550 MPa (80 ksi),

  • Tensile yield strength = 
    345 MPa (50 ksi)

  • Percent elongation =  
    22% in 50 mm     

  • Reduction in area = 35%. 

The steel must have Charpy Impact strength of 27 J at -20C.  The steel connector must be weldable and the finished weld must have Charpy impact strength of 27 J at -30C. 

The surface finish requirement is 450 RMS

The quality assurance requirements were also extensive, covering both casting process parameters and comprehensive mechanical testing and non-destructive  evaluation of castings.

 
Copyright 2009  by the Steel Founders' Society of America   All rights reserved. 
Address comments to: blairr@sfsa.org
Last Modified:October, 2009 by STG

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In cooperation with Cast Connex and Pacific Steel Castings