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    输油管·内螺纹钢管
     
     
    电站锅炉用内螺旋筋钢管
    SEAMLESS INTERNAL SPIRAL-RIBBED HIGH PRESSURE BOLIER STEEL TUBES FOR POWER PLANT
    标准(Standard): ASTM A213/A213M——锅炉、过热器和换热器用无缝铁素体和奥氏体合金
                    钢管规格
                    (Standard Specification for Seamless Ferritic and Austenitic
                    Alloy-Steel Bolier,
                    Superheater,and Heat-Exchangger Tubes)
                    标准(Standard):GB5310——中国国家标准 Chinese National Standard
    Application: Applied in manufactureing water cooled furnace of boliers in the
                 eletric station,eliminating steam film efficiently in inner walls
                 of tubes,improving thermal efficiency of walls of bolier
     
    ·化学成分、机械性能
    标准
    Standard
    编号
    Grade
    机械性能 Mechanical Properties
    抗拉强度(Mpa)
    Tensile Strength
    屈服强度(Mpa)
    Yield Strength
    硬度(max)
    Hardness
    ASTM A213/A213M T2 ≥415 ≥205 85HRB
    T12 ≥415 ≥220 85HRB
    ASTM A21O/A210M SA210A ≥485 ≥275 85HRB
    GB531O 2OG 415-550 ≥245 ---
    15GrMoG 440-640 ≥235 ---
    12GrlMoVG 475-640 ≥235 ---
     
     
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