Page 4 - square pipe

SQUARE PIPE
Size and Properties
JIS G3466
Grade : STKR290

B
JIS G3466
T
H

SIAZES 16 x 16 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
1.2 0.67 0.53 0.24 0.24 0.30 0.30 0.60 0.60
1.4 0.77 0.60 0.27 0.27 0.33 0.33 0.59 0.59
1.6 0.86 0.67 0.29 0.29 0.36 0.36 0.58 0.58
% 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