Home > Products > Building Materials, Steel Rebar > Carbon structural steel Share × ✓ Add to quote Carbon structural steel Request a Quote Enter the quantity you need and add to your quote list for pricing inquiries. Quantity: Inquire Now Description Description Steel grade: Q235B Specifications: 12mm-250mm Implementation standard: GB/T700-2006 Quality grade: National standard Application: Engineering structures, mechanical parts, anode steel claws for electrolytic aluminum, hardware products, non-standard parts, etc.