Recent content by bobca1

According to Wikipedia definitive source for everything :smile: says grade B A500 shaped is 315 MPa. (I converted to 45,687 psi).

Thank you jack for the explanation and the calculators! At a local metal supplier I see a product listed as "hot rolled square tube ERW ASTM-A500 Grade B" and its available in both 1/4" thickness as well as 3/8". To compare products I plugged in 3/8" (b = 3.25"), I get a stress of 5,000 and a...

I need to be able to support a variable side load up to a maximum of about 250lbs at 10' high. I am planning on using a 14' 4x4 steel pole that will be anchored 4ft in the ground (with concrete). Question I have will 4x4 square pole be good for this application, and would 1/4" thickness...