MDCR 0002|SQUARE AND RECTANGULAR HOLLOW SECTION|

MDCR 0002

HOLLOW STRUCTURAL SECTION MDCR 0002

MDCR0002 “Building Column Specification approved by the Minister of Land, Infrastructure, Transport and Tourism, Japan”

Mechanical properties and chemical composition

Tolerances

The tolerances on dimensions are established in accordance with MDCR 0002.

Characteristics	Tolerances
Outside dimensions of side	1.0% and 3.0mm
H : Longest side B : Shortest side
Wall thickness(T)	(6mmT16mm)	-0.3mm, +1.0mm
	(16mm T)	-0.3mm, +1.2mm
Unevenness of the flat portions of each side	0.5% and 3.0mm
Squareness of sides	901.0
External corner radius	2.5T0.5T
Straightness	(L9m)	1/1500 in total length
	(9mL)	1/1250 in total length
Twist	[1.5 x Outside dimension(mm)/1000] x total length (m)
Length	0, +50mm (Private standard tolerance)
NOTE 1) Outside dimensions are measured across the flats at positions at least 50mm from the end of the HSS.

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Packing

In bare bundle with steel band,or in bulk. Standard lengths are 6, 8 and 12 meter.

Marking

Each of the square and rectangular hollow sections shall be marked with the following information.
a)manufacturer's name b)specification designation c)grade letter d)dimension e)heat number

Inspection and Testing

MDCR 0002 is subject to tensile testing in accordance with JIS Z 2241.
The general matters of inspection shall be in accordance with JIS G 0404.
If you need additional requirements, please consult us.

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Available size rangeDimensions (mm-size)
Size (mm)		Wall thickness (mm)
Square	Rectangular	6.0	8.0	9.0	12.0	14.0	16.0	19.0	22.0
150x150
	175x125
	200x100
175x175
	200x150
	250x100
200x200
	250x150
250x250
	300x200
	350x150
300x300
	400x200
350x350
400x400
450x450
	600x300
500x500
550x550
MDCR 0002 available If you require other sizes, please consult us.