For the A514 Gr B QT steel plate construction industry, the largest consumer sector of the steel industry and the least affected industry in the EU this year, it is estimated that A514 Gr B QT steel plate steel consumption will account for 35% of the EU steel consumption market this year. Uestf forecasts that the output of the construction industry will decline by 5.3% in 2020 and rise by 4% in 2021.
Chromium molybdenum steel, also known as medium temperature hydrogen resistant steel, refers to the steel added with Cr (≤ 10%), Mo and other alloy elements to significantly improve the high-temperature strength limit and creep limit, and has good hydrogen corrosion resistance and high-temperature resistance performance. A514 Gr B QT steel plate, Chromium molybdenum steel is widely used in oil refining, chemical and other hydrogen containing devices and high-temperature equipment, and is one of the commonly used steels for pressure vessels.
Q265GNH coil chemical composition: C: 0.17～0.24, Si: 0.17～0.37, Mn: 0.40～0.70, S: ≤0.035, P: ≤0.035, Cr: 0.80～1.10, Ni: 0.030, Cu: ≤0.030, Mo: 0.15 ~0.25 A514 Gr B QT steel plate mechanical properties: Tensile strength σb (MPa): ≥885(90) Yield strength σs (MPa): ≥685(70) Elongation δ5 (%): ≥12 Reduction of area ψ (%): ≥50 Impact energy Akv (J): ≥78
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