Under the JIS G3444 standard, STK290 is a specific grade, corresponding to carbon steel pipes for general structures. The tensile strength σb of STK290 steel pipes should be no less than 290Mpa.
The manufacturing process of STK290 carbon steel pipes produced by GNEE can be seamless, electric resistance welding ERW, submerged arc welding SAW, etc., with a caliber range of 15A to 800A and a wall thickness range of SCH20 to SCH160. In addition, STK290 hollow steel pipes can also be further processed according to demand, such as structural welding, 3PE on the steel pipe surface, galvanizing, etc.
STK290 Carbon Steel Tubes
| Product name | Carbon Steel Square Tube |
| Steel Grade | JIS G3444 STK290,STK400,STK500,STK490,STK540, |
| Specification | Wall Thickness:0.5mm -28mm Outer Dia: 5*5 mm-1000*1000mm Length: 1-12m, customized |
| Technical treatment |
1) Black,Pre-galvanized 2) oiled,powder coating 3) Galvanized as your requirement PS:Pre galvanized steel pipe: 60-150g/m2;Hot dipped galvanized steel pipe: 200-400g/m2 |
| MOQ | 30 Ton |
| Usage | 1) Low Pressure Liquid, Water, Gas, Oil, Line Pipe 2) Construction , Structure 3) Agriculture fence post , door pipe |
Chemical composition of JIS G3444 STK290 steel pipe
| Symbol of grade | C | Si | Mn | P | S |
| STK290 | – | – | – | 0.050 max. | 0.050 max. |
JIS G3444 STK290 Mechanical properties of hollow tubes
| Symbol of Grade |
Tensile Strength N/mm² |
Yield Point of Proof Stress N/mm² |
Tensile Strength in Weld Zone N/mm² |
Flattening | Bendability | |
|
Distance between Plates (H) |
Bend Angle | Inside Radius | ||||
| Applied outside diameter | ||||||
| All outside diameters | All outside diameters | All outside diameters | All outside diameters | 50 mm max. | ||
| STK290 | 290 min. | – | 290 min. | 2/3 D | 90° | 6 D |
Advantages of Choosing GNEE STK290 Tubes
The advantage of choosing GNEE pipe manufacturers is 10% lower prices compared to stockists and suppliers in Mumbai and quality material with manufacturer's factory test certificate.
Besides, we also provide uncoiling, cutting, welding, painting service etc.
If you are interested in purchasing quality seamless tubes from reliable GNEE, please email now!sales@gneetube.com
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FAQ
Q.How do we trust your company?
A. We specialist in steel business for many years, authenticated by SGS,welcome to visit our factory.
Q. Can you provide samples?
A.We can provide them for free, you need to bear the shipping cost.
Q.What is your after-sales service?
A.We provide after-sales service and 100% quality assurance for our products.
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