USE:
A500 :Cold Formed Welded and Seamless Carbon Steel Structural Tubing in Round and shapes 

Weight Count:(Just for Carbon Steel) 
Weight(Kg/M)=0.0157*S*(2A-2.8584S)
A:Side Length 
S:Wall-Thickness

Square Tubing Delivery Condition : 
As different requirements,It including Size, Packing,Fixed Length,Random Length,Round Angles etc.

Packing:
1.Standard Packing
2.Woodbox Packing

Other Test: 
1.Marking
2.Grain Size,etc