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. |
Tubo de latón sin plomo C27450
Posted: Jul 03, 2025Tubos de aleación de cobre C44300 para sistemas de intercambio de calor
Posted: Jul 01, 2025Introducción a los tubos de cobre para la industria automotriz
Posted: Jun 25, 2025Tubos de cobre para energía solar y aparatos de calefacción
Posted: Jun 23, 2025Continental Steel Co.,Ltd(CSC) is a pioneering manufacturer, stockist, and supplier of steel pipe products.