Page 15 - square pipe
P. 15
SQUARE PIPE
Size and Properties
JIS G3466
Grade : STKR400
B
T JIS G3466
H
SIAZES 45 x 45 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 1.53 1.62 6.54 1.78 1.78 1.78 2.91 2.91
1.4 2.39 1.88 7.49 1.77 1.77 1.77 3.33 3.33
1.7 2.87 2.25 8.84 1.76 1.76 1.76 3.93 3.93
2.3 3.79 2.98 11.32 1.73 1.73 1.73 5.03 5.03
3.2 5.09 3.99 14.47 1.69 1.69 1.69 6.43 6.43
% 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
