BLOGS

JIS G3466 Carbon steel square tube

Mar 29, 2024

JIS G3466 Carbon steel square tube

JIS G3466 carbon steel square tube is used in civil construction and other structural buildings. Manufacturing methods can form welded steel pipe (resistance welded, forge welded or automatic arc welded) or seamless pipe into a square cross-sectional shape. JIS G3466 carbon steel square tubes shall be manufactured without heat treatment.
JIS G3466 Carbon steel square and rectangular tubes for general structure
JIS G3466 specifies square steel pipes (hereafter referred to as square steel pipes) used for structures such as civil engineering and construction.
STKR 400, STKR 490 Pipe Size:
Grade: STKR 400, STKR 490
Square Size: 40*40mm-350*350mm
Rectangular Size: 20*50mm-200*400mm
Wall Thickness: 1.6-12mm

Chemical Composition:

Designation of grade

Chemical Composition

C Si Mn P S
STKR 400 0.25 max. - - 0.040 max. 0.040 max.
STKR 490 0.18 max. 0.55 max. 1.50 max. 0.040 max. 0.040 max.

Mechanical Property:

Designation of grade

Tensile strength

N/㎟{kgf/㎟}

Yield point or proof stress

N/㎟{kgf/㎟}

Elongation %

(No.5 test piece)

STKR 400 400 {41} min. 245 {25} min. 23 min.
STKR 490 490 {50} min. 325 {33} min. 23 min.

 

Casing Manufacturing Process

Tubo de latón sin plomo C27450

Tubo de latón sin plomo C27450

Posted: Jul 03, 2025
Tubos de aleación de cobre C44300 para sistemas de intercambio de calor

Tubos de aleación de cobre C44300 para sistemas de intercambio de calor

Posted: Jul 01, 2025
Introducción a los tubos de cobre para la industria automotriz

Introducción a los tubos de cobre para la industria automotriz

Posted: Jun 25, 2025
Tubos de cobre para energía solar y aparatos de calefacción

Tubos de cobre para energía solar y aparatos de calefacción

Posted: Jun 23, 2025
CONTINENTAL STEEL CO.,LTD

Continental Steel Co.,Ltd(CSC) is a pioneering manufacturer, stockist, and supplier of steel pipe products.

Obtén una cotización

CONTACTO US

CONTINENTAL STEEL CO.,LTD