Page 3 - square pipe
P. 3
SQUARE PIPE
Size and Properties
JIS G3466
Grade : STKR290
B
T JIS G3466
H
SIAZES 12 x 12 x t
H x A x C
( mm. )
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
1.0 0.41 0.33 0.08 0.08 0.44 0.44 0.14 0.14
1.2 0.48 0.38 0.09 0.09 0.43 0.43 0.15 0.15
1.4 0.54 0.43 0.10 0.10 0.43 0.43 0.16 0.16
1.6 0.60 0.47 0.10 0.10 0.42 0.42 0.17 0.17
% 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
