weathering steel 1Material:Q345NH,cortenA /B,SPA-H. 2Thickness:2-180mm 3Width:1000-3000mm 4QC-QA-MTC-SGS-BV-CIQ weathering steel materialgradechemical composition,%CSiMnPSCuCrNiVQ235NHA-E≤ 0.130.10-0.400.20-0.60≤ 0.13≤ 0.130.25-0.550.40-0.80≤ 0.65/Q295NHA-E≤0.150.10-0.500.60-1.00≤ 0.13≤ 0.130.25-0.550.40-0.80≤ 0.65/Q295GNHA-E≤ 0.120.10-0.400.20-0.50≤ 0.13≤ 0.130.25-0.550.40-0.800.25-0.50/Q355NHA- ...
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