Page 8 - square pipe
P. 8

Value series        SQUARE PIPE
   Value series
                       Size and Properties
                       JIS G3466
                       Grade : SSC400

                               B
                                 T            JIS G3466
                                 H

            SIAZES   22 x 22 x  t
          H x A x C
            ( mm. )
 Modulus of Section  Thickness Section Area Weight Moment of inertia Radious of Gyration Modulus of Section
  ( Unit : mm )  ( Unit : cm  .) 2  ( Unit : kg./m.)  ( Unit : cm .) 4  ( Unit : cm.)  ( Unit : cm .) 3
    t   Area cm 2  kg./m  l x  l  y  i  x  i  y  z  x  z  y
   1.2    0.96  0.75  0.68  0.68  0.84  0.84  0.62  0.62
   1.4    1.10  0.87  0.76  0.76  0.83  0.83  0.69  0.69
   1.6    1.24  0.97  0.84  0.84  0.82  0.82  0.76  0.76
   1.7    1.31  1.03  0.87  0.87  0.82  0.82  0.80  0.80
   2.0    1.50  1.18  0.97  0.97  0.81  0.81  0.88  0.88
              % Chemical Composition (Max)  Mechanical Properties (Min)
   Grade
         C     Si   Mn    P    S   Yield Strength Tensile Strength  Elongation
                                    MPa
                                         MPa
                                               %
   STKR290  -  -     -   0.050  0.050  -  290  -
   STKR400  0.25  -  -   0.040  0.040  245  400  23
   STKR490  0.18  0.55  1.50  0.040  0.040  325  490  23
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