Page 20 - square pipe

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

B
T
JIS G3466
H

SIAZES 70 x 70 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 3.79 2.98 29.51 29.51 2.79 2.79 8.43 8.43
1.7 4.57 3.59 35.20 35.20 2.78 2.78 10.06 10.06
2.0 5.34 4.19 40.69 40.69 2.76 2.76 11.63 11.63
% 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