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Centerway steel co., ltd
ssaw pipe factory,ssaw pipe suppliers,ssaw pipe manufacturers

  • JIS G3466

    Carbon Steel Rectangular Pipes for General Structure

    chemical composition

    Designation of grade

    Chemical Composition

    C

    Si

    Mn

    P

    S

    STKR 400

    0.25 max.

    -

    -

    0.040 max.

    0.040 max.

    STKR 490

    0.18 max.

    0.55 max.

    1.50 max.

    0.040 max.

    0.040 max.

    JIS G3466 STKR400  mechanical property

    Designation of grade

    Tensile strength

    N/㎟{kgf/㎟}

    Yield point or proof stress

    N/㎟{kgf/㎟}

    Elongation %

    (No.5 test piece)

    STKR 400

    400 {41} min.

    245 {25} min.

    23 min.

    STKR 490

    490 {50} min.

    325 {33} min.

    23 min.

     

    Grade

    Yield strength MPa

    Tensile strength MPa

    Elongation %

    STKR400

    ≥400

    ≥245

    ≥23

    The tolerances on dimensions are established in accordance with JIS G 3466.

    Characteristics

     

    Tolerances

     

    Outside dimensions of side

     

    (H,B100mm)

    1.5mm

    H : Longest side

     

    (100mmH,B)

    1.5%

    B : Shortest side

     

     

     

    Wall thickness(T)

     

    (T3mm)

    0.3mm

     

     

    (3mmT)

    10% in thickness

    Unevenness of the flat portions of each side

     

    (H,B100mm)

    0.5mm

     

     

    (100mmH,B)

    0.5%

    Squareness of sides

     

    901.5

     

    Corner dimension(S)

     

    S3T

     

    Straightness

     

    0.3% in total length

     

    Length

     

    0, +50mm (Private standard tolerance)

    NOTE
    1)The outside dimensions are measured across the flats at positions at least 50mm from the end of the HSS.

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