Grade SM520C
Corresponding Standard Q/BQB 130-2003
Classification Carbon Steel
SM520C Chemical Element Composition Content (%)
  Component C Si Mn P S Nb
适用成品板厚1.6~6mm Minimum Value 0.12 - 0.85 - - -
Maximum Value 0.21 0.25 1.35 0.035 0.035 0.04
①Deoxidation method : C--Cap steel;A--aluminum-killed steel;G-aluminum--silicon killed steel;K--silicon killed steel
②For thick plates (thickness ≥ 15mm), the slabs should be aluminum-silicon killed steel slabs.
SM520C Corresponding Standards(Same grade name, different standards)

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