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JIS G 3466 Carbon Steel Square , Rectangular Structural Steel Tubing 5mm Diameter

Categories Structural Steel Pipe
Brand Name: TORICH
Model Number: JIS G 3466
Certification: ISO 9001 ISO14001 TS 16949 DNV LR SON
Place of Origin: China
MOQ: 5 TONS
Price: Negotiation
Supply Ability: 50000 tons per year
Delivery Time: 35-60 days
Packaging Details: oil protection in bundles or as per requests
Material: Carbon steel
Steel Grade: STKR 400,STKR490
Standard: JIS G 3466
Shape: Square and rectangle
Application: For general structural purposes
Relevant standard: KS D 3568 ASTM A500 BS EN 10025
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    JIS G 3466 Carbon Steel Square , Rectangular Structural Steel Tubing 5mm Diameter

    JIS G 3466 Carbon Steel Square and rectangle tubes for general structure


    Standard JIS G 3466

    Diameter 5-420mm

    Wall thickness 0.5-50mm

    Length 12m max


    Application :for general structural purposes


    Produce method:

    1. Forming welded steel tubes
    2. Seamless steel tubes into square
    3. Forming a steel sheet in coil into square section or into one pair of channel section followed by a continuous electric ressistance welding or automatic arc welding process.

    CHEMICAL COMPOSITION % max

    Steel grade

    C

    Si

    Mn

    P

    S

    STKR 400

    0.25

    -

    -

    0.04

    0.04

    STKR 490

    0.18

    0.55

    1.5

    0.04

    0.04


    MECHANICAL PROPERTIES min

    Steel grade

    Tensile strength Mpa

    Yeild point or proof stress Mpa

    Elongation %

    STKR 400

    400

    245

    23

    STKR 490

    490

    325

    23


    Dimensional tolerance

    Specified item and dimension

    Dimensional tolerance

    length of side

    100mm or under

    ±1.5mm

    over 100mm

    ±1.5%

    Unvenness of flat plate portions

    side length 100mm or under

    0.5mm max

    side length over 100mm

    within 0.5% of side length

    Angularity made by adjacent flat plate portions

     

    ±1.5°

    Dimension at corner:s

    3t max

    Length

    + not specified

    0

    Un-straightness

    Within 0.3%

    Wall thickness :t

    Square steel tube manufacture by welding

    under 3 mm ±0.3mm
    3mm or over ±10%

    Seamless square steel tube

    under 4mm ±0.6mm
    4mm or over ±15%


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