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ASTM A513

ASTM A513

ASTM A513

(OP)
Does anyone have experience with substituting ASTM A513 square tubing for ASTM A500?  ASTM A500 is recognized in the AISC as well as AISI Cold-formed Steel Design manual, and is typically what is specified for structural applications.  The issues that I am aware of are the low carbon content in the A513; therefore requiring the welders to be certified as well as the nominal dimensions are slightly different from A500 shapes. Additionally, I have assumed the yield strength to be FY=50 ksi as a conservative number rather than fy = 86 ksi. Has anyone had experience in using this as a structural element?  

RE: ASTM A513

I'm not sure where you are working, but in every part of the US that I know of, all welded structural components must be welded by certified welders, whether A500, A513, A36 or others.  The difference in this case is that the material might require a special procedure or special filler metal that takes is out of the realm of a pre-qualified welding procedure specification.  Check AWS D1.1 for more information.

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