Since the beginning of this year, the global A709 Gr 50W bridge steel plate steel pipe industry, like many other industries, is facing severe market situation. The difference is that novel coronavirus pneumonia is not only affected by the epidemic, but also closely linked to the oil and gas industry, and the global A709 Gr 50W bridge steel plate steel tube industry will also suffer from the "flash collapse" of international oil prices in March.
Q355GNHE corten steel is characterized by adding a small amount of Cu, P, Cr, Ni and other alloying elements to the steel, so that the steel material forms a dense layer between the rust layer and the substrate with a thickness of about 50 to 100 μm and good adhesion to the substrate metal. The amorphous spinel oxide layer prevents oxygen and water in the atmosphere from penetrating into the steel substrate, slows down the rust development to the steel material, A709 Gr 50W bridge steel plate, and greatly improves the steel material's resistance to atmospheric corrosion.
Cold formed hot rolled pickled automotive structural steel QSTE500TM Material QSTE500TM chemical composition (melting analysis)% Carbon: ≤0.12, Silicon: ≤0.35 ,Manganese: ≤1.70, Phosphorus: ≤0.03, Sulfur: ≤0.025, Titanium: ≤0.22, Niobium: ≤0.09 Aluminum : ≥0.015 Specimen test (tensile, bend, specimen is transverse; Mpa). Yield strength MPa: ≥500 Tensile strength MPa: 550-700 Elongation: ≥17
Company through its own A709 Gr 50W bridge steel plate website, multimedia, radio, newspapers, the group, the handbook of the corporate culture carrier, approved and publicity column, in-depth to carry out enterprise culture construction, also through photography, painting, calligraphy, cartoon, speech, and the songs of the enterprise design, various cultural and sports activities to carry out enterprise culture construction.
