... good surface, high quality Black Painted Steel Strapping Painted Surface Treatment: Color painted& waxed Painted Corlors: Black green, red, ... Q195, Q215, Q215B, Q235, Q235B, Q345, 20MnSi steel. Technical Parameters: Ordinary steel strapping Σ B≥ 65-75kg/mm2(650-750Mpa), Elongation: ... (750-850Mpa), Elongation: δ 5≥ 4%-6% High quality steel strapping Σ B≥ 85-1000kg/mm2(8501000Mpa), Elongation: δ 5≥ 5 ...