1> Hot Roll U-Channel / UPN / IPA 2> Standard : GB ,JIS 3> Grade:Q235B SS400 Q345B Hot Roll U-channel---Usage(1) building , bridge ,high way (2). Some kinds of machines(4) Carbon structure steel fit for : Standard GB/T706-2008 ,GB/T700-2006,GB/T11263-1998-Grade:Q235B Equal toJIS-SS400 / ASTM-A283M-Gr.DChemical Composition---C-0.12-0.20, Si≤0.30, Mn0.30-0.70,S≤0.045 , P≤0.045,Cr≤0.30,Ni≤0.30,Cu≤0. ...
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