Dandong Steel Grating [dedicated] supply ship cabin Dandong steel grating manufacturers latest offer various types of vessels dedicated Dandong steel grating is tailored specifically for the shipbuilding industry, steel grating products. Because of the harsh working conditions of ships, marine hull subject to chemical corrosion, electrochemical corrosion and marine growth, microbial corrosion. Selection, welding, galvanizing the main particularity: 1. Raw materials: Marine steel grating used in the steel grid first good toughness is the most critical requirement, in addition, require high strength, good corrosion resistance, molding properties and surface quality. To maintain quality and ensure adequate toughness required chemical composition of Mn / C in 2.5 above, for the carbon equivalent, there are strict requirements. Selection flat major: 25 × 5MM, 32 × 3MM, 40 × 3MM, 50 × 5MM like, twist around the edging steel and bearing steel specifications Always use a monospaced not less than the thickness of the flat steel 5MM width direction twisted square steel diameter Φ6 or Φ8MM, the material must be carbon steel Q235A or 1cr18ni9ti of stainless steel. 2, welding processing requirements: each bearing are flat and flat steel edging and double-sided fillet weld seam is not less than 3MM; each flat and twisted rod bearing joints are fully welded; semi-finished black pieces production is completed must be removed spatter, welding slag, burrs, no sharp edges and corners polished entire board pay level. 3. Marine grating galvanized layer requirements: Elected to use when carrying flat steel thickness of not less than 5MM, galvanized zinc coating weight average not less than 610g / m; thickness elected with less than 5mm when carrying flat steel plating zinc after not less than the average weight of zinc coating 460g / m. Quality galvanized and shall comply with the requirements of the latest "hot dip galvanized" GB / T13912-2008 standard. Specializing in the production ship cabin special Dandong steel grating deck passage, warehouse platform, chimney platform cab platform