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RE: B sections

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snip<
Per Steel Construction, by AISC, December1927.  p. 17.
	A-9 steel
	Tensile strength 55,000-65,000 psi
	Yield point 0.5 tens. str. 

Avoid welding to these beams.  It can be done, but only with great care.

Regards,
Harold Sprague>

Harold, B sections were used well into the 1960's and found fairly common in
remodels. Is there problems with welding all of them? Did I miss something?
what should we be aware of about welding to them??
Matt Jordan