Page 13 - square pipe

SQUARE PIPE
Size and Properties
JIS G3466 , มอก.107-2561
Grade : STKR400
B
T
H
B
T
มอก. 107-2561 JIS G3466
H

SIAZES 38 x 38 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 1.44 1.13 2.25 2.25 1.25 1.25 1.40 1.40
1.4 1.66 1.31 2.55 2.55 1.24 1.24 1.60 1.60
1.5 1.77 1.39 2.70 2.70 1.23 1.23 1.69 1.69
1.6 1.88 1.48 2.84 2.84 1.23 1.23 1.78 1.78
1.7 1.99 1.56 2.98 2.98 1.23 1.23 1.86 1.86
1.8 2.09 1.64 3.12 3.12 1.22 1.22 1.95 1.95
2.0 2.30 1.80 3.37 3.37 1.21 1.21 2.11 2.11
2.3 2.60 2.04 3.73 3.73 1.20 1.20 2.33 2.33
2.5 2.79 2.19 3.94 3.94 1.19 1.19 2.46 2.46
2.8 3.07 2.41 4.24 4.24 1.18 1.18 2.65 2.65
3.2 3.42 2.69 4.59 4.59 1.16 1.16 2.87 2.87
% 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