To provide a management method of a marine LNG storage tank and a marine LNG storage tank which can prevent occurrence of a stress corrosion crack even when Ni steel is used.SOLUTION: A management method of a marine LNG storage tank, made of a steel material having a Ni content of 5.0-10.0 mass%, manages so that, in the tank, an adherence salt content S per unit area calculated in NaCl and a temperature T satisfy [S≤0.1] and [T≤30].SELECTED DRAWING: None

    【課題】Ni鋼を用いた場合であっても、応力腐食割れの発生を抑制しうる、船舶用LNG貯蔵タンクの管理方法および船舶用LNG貯蔵タンクを提供する。【解決手段】船舶用LNG貯蔵タンクの管理方法であって、タンクは、Ni含有量が5.0〜10.0質量%である鋼材からなり、タンク内において、NaClで換算した場合の単位面積当たりの付着塩分量S、および温度Tが、[S≦0.1]および[T≦30]を満足するように管理する、船舶用LNG貯蔵タンクの管理方法。【選択図】なし


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    Title :

    MANAGEMENT METHOD OF MARINE LNG STORAGE TANK, AND MARINE LNG STORAGE TANK


    Additional title:

    船舶用LNG貯蔵タンクの管理方法および船舶用LNG貯蔵タンク


    Contributors:

    Publication date :

    2020-07-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C22C Legierungen , ALLOYS / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES / B65D Behältnisse zur Lagerung oder zum Transport von Gegenständen oder Materialien [Container], z.B. Säcke, Beutel, Fässer, Flaschen, Dosen, Kästen, Büchsen, Schachteln, Packkörbe, Tonnen, Gläser, Flüssigkeitsbehälter, Trichtersilos, Transportbehälter , CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS



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