... -pyramidal,Columniform,polygonal or conicalMaterialUsually Q345B/A572,minimum yield strength>=345n/mm2Q235B/A36,minimum yield strength>=235n/mm2As well as Hot rolled coil from ... Q460 ,ASTM573 GR65, GR50 ,SS400, SS490ST52Torlance of dimenstion+- 2%Power35 ...