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Inconel 625 截止閥


  • 應用領域 Applications

    軟化退火后的低碳合金625廣泛的應用于化工流程工業,較好的耐腐蝕性和高強度使之能作為較薄的結構部件。

    625合金可以應用于接觸海水并承受高機械應力的場合。

    1.含氯化物的有機化學流程工藝的部件,尤其是在使用酸性氯化物催化劑的場合。

    2.用于制造紙漿和造紙工業的蒸煮器和漂白池。

    3.煙氣脫硫系統中的吸收塔、再加熱器、煙氣進口擋板、風扇(潮濕)、攪拌器導流板以及煙道等。

    4.用于制造應用于酸性氣體環境的設備和部件。

    5.乙酸和乙酐反應發生器。

    6.硫酸冷凝器。

    Soft-annealed low carbon 625 alloy is widely used in the chemical process industry ,good corrosion resistance and high strength so that it can be used as thin structural parts.625 alloy can be applied to contact with sea water and withstand high mechanical stress situations.

    1.Components of organic chemical process processes containing chlorides ,particularly where acid chloride catalysts are used.

    2.Usedin the manufacture of pulp and paper industry ,digester and bleach tank.

    3.Flue gas desulfurization system in the absorption tower ,reheater ,flue gas inlet baffle ,fan ( wet),stirrer ,deflector and flue.

    4.Used in the manufacture of equipment and components for use in acid gas atmospheres 5 .Aceticacid and acetic anhydride reaction generator.

    6.Sulfuric acid condenser.

     

    材料特性 Material Characteristics

    1.對氧化和還原環境的各種腐蝕介質都具有非常出色的抗腐蝕能力。

    2.優秀的抗點腐蝕和縫隙腐蝕的能力,并且不會產生由于氯化物引起的應力腐蝕開裂。

    3.優秀的耐無機腐蝕能力,如硝酸、磷酸、硫酸、鹽酸以及硫酸和鹽酸的混合酸等。

    4.優秀的耐各種無機酸混合溶液腐蝕的能力。

    5.溫度達40℃時,在各種濃度的鹽酸溶液中均表現出很好的耐蝕能力。

    6.良好的加工性和焊接性,無焊后開裂敏感性。

    7.具有壁溫-195450℃的壓力容器的制造認證。

    8.經美國腐蝕工程師協會NACE標準認證(MR-01-75)符合酸性氣體環境使用的最高標準等級Ⅵ。

    金相結構:625為面心立方晶格結構。當在約650℃保溫足夠長時間后,將析出碳顆粒和不穩定的四元相并將轉化為穩定的Ni3Nb,Ti)斜方晶格相。

    固溶強化后鎳鉻矩陣中的鉬、鈮成分將提高材料的機械性能,但塑性有所降低。

    1.On the oxidation and reduction of various environmental corrosive media have a very good corrosion resistance.

    2.Excellent resistance to pitting and crevice corrosion ,and does not produce chloride-induced stress corrosion cracking.

    3.Excellent resistance to inorganic acid corrosion ,such as nitric acid phosphoric acid ,sulfuric acid ,hydrochloric acid and sulfuric acid and hydrochloric acid mixed acid.

    4.Excellent resistance to all kinds of inorganic acid mixed solution corrosion ability.

    5.When the temperature reaches 40 ,it can show good corrosion resistance in various concentrations of hydrochloric acid solution.

    6.Good process ability and weld ability ,and no post weld cracking sensitivity.

    7.Have a wall temperature of -196-450C in the manufacture of pressure vessel certification.

    8.Certified by the American Society of Corrosion Engineers NACE Standard ( MR-01-75),meets the highest standards for acid gas atmospheres Class.

    Metallographic structure :Face-centered cubic lattice structure .When the insulation in about 650C long enough ,the precipitation of carbon particles and unstable quaternary phase and will be converted to stable Ni3 ( Nb,Ti )orthorhombic phase.

    The molybdenum and niobium components in the Ni-Cr matrix after solid solution strengthening will improve the mechanical properties of the material ,but the plasticity will be reduced.

     

    機械性能 Mechanical Properties

    名稱
      Type

    標椎(ASTM)
      Standard

    合金狀態
      Alloy State

    抗拉強度≥
      Tensule Strenght

    屈服強度≥
      Yield Strenght

    延展率≥
      Elongation

    管件
      Fitting

    B366

    固溶
      Solid Solution

    760

    345

    30

    無縫鋼管
      Seamless Steel Pipe

    B444

    退火
      Annealing

    827

    414

    30

    有縫鋼管
      Welded Steel Pipe

    B704

    退火
      Annealing

    827

    414

    30

    板材
      Plate

    B443

    退火
      Annealing

    758

    379

    30

    棒材
      Bar

    B446

    退火
      Annealing

    758

    345

    25

    鍛件
      Forging

    B564

    退火
      Annealing

    758

    345

    25

     

    化學成分 Chemical Composition

    名稱
      Type

    標椎(ASTM)
      Standard

    Ni

    Mo

    Fe

    Mn

    C

    Si

    S

    Cr

    Al

    Ti

    P

    Nb+Ta

    管件
      Fitting

    B366

    58.0

    8.0-10.0

    5.0

    0.50

    0.10

    0.50

    0.015

    20.0-23.0

    0.4

    0.4

    0.015

    3.15-4.15

    無縫鋼管
      Seamless Steel Pipe

    B444

    58.0

    8.0-10.0

    5.0

    0.50

    0.10

    0.50

    0.015

    20.0-23.0

    0.4

    0.4

    0.015

    3.15-4.15

    有縫鋼管
      Welded Steel Pipe

    B704

    58.0

    8.0-10.0

    5.0

    0.50

    0.10

    0.50

    0.015

    20.0-23.0

    0.4

    0.4

    0.015

    3.15-4.15

    板材
      Plate

    B443

    58.0

    8.0-10.0

    5.0

    0.50

    0.10

    0.50

    0.015

    20.0-23.0

    0.4

    0.4

    0.015

    3.15-4.15

    棒材
      Bar

    B446

    58.0

    8.0-10.0

    5.0

    0.50

    0.10

    0.50

    0.015

    20.0-23.0

    0.4

    0.4

    0.015

    3.15-4.15

    鍛件
      Forging

    B564

    58.0

    8.0-10.0

    5.0

    0.50

    0.10

    0.50

    0.015

    20.0-23.0

    0.4

    0.4

    0.015

    3.15-4.15

     

     


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