Tianjin Lefin Industrial Co., Ltd is one of the most experienced manufacturers and suppliers of jis g3466 stkr490 hollow section in China. Please feel free to buy high quality jis g3466 stkr490 hollow section from our factory. Good service and reasonable price are available.
LEFIN STEEL produce square tube / rectangular tube / hollow section acc to JIS G3466
JIS G3466 Carbon Steel Square for general structural purposes.
JIS G3466 STKR490 Hollow section
JIS G3466 STKR400 Hollow section
JIS G3466 STKR400 Square tube
JIS G3466 STKR490 Square tube
Production type: Welded or Seamless
Sizes:50X50---900X900 Thickness:1.5-50mm Length: 1M--25M
JIS G3466 Carbon Steel Square pipe is used for civil engineering architecture and other structure buidings. Manufacture method can be forming welded steel pipes(electric resistance welding. forging welding or automatic arc welding) or seamless pipes into shape of square section. JIS G3466 Carbon Steel Square pipe shall be manufactured with no heat treated method.
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. |
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