• ASTM A387 Grade 11 Class 1 Steel
  • ASTM A387 Grade 12 is in the standard ASTM A-387. A387 Grade 12 is a kind of Cr-Mo-alloy steel material used to fabric high temperature pressure vessels. Because of the good mech For pressure vessel steel plate SA387 Grade 12 CL 1, the tensile strength shall be within 380 to 550, minimum yield strength is 230 Mpa.anical property, A387GR12 is widely used in the high temperature vessels industry.

    ASTM A387 Grade 11 Class 1 Steel Dimension:

    Thickness: 6mm -300mm;Width: 1500mm-4000mm;Length: 3000mm-15000mm


    Material ASTM A387 Grade 12 Class 1 Plates Chemical Composition

    Material ASTM A387 Grade 12 Class 1 Plates Chemical Composition

    Grade

    The Element Max (%)

    C

    Si

    Mn

    P

    S

    Cr

    Mo

    A387 Gr.12 Cl.1

    0.04-0.17

    0.13-0.45

    0.35-0.73

    0.035

    0.035

    0.74-1.21

    0.40-0.65

    Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

    Material ASTM A387 Grade 12 Class 1 Plates Mechanical Properties

    Grade

    Material ASTM A387 Grade 12 Class 1 Plates Mechanical Property

    Thickness

    Yield

    Tensile

    Elongation

    A387 Gr.12 Cl.1

    mm

    Min Mpa

    Mpa

    Min  %

    t≦50

    230

    380-550

    22

    50

    -

    -

    18

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