SS400 ERW Square/Rectangular Steel Tube/Hollow Section
Basic Info
Model No.: 250*250*10
Product Description
SS400 ERW Square/Rectangular Steel Tube/Hollow Section
we focus on the production of high-frequency welded pipe,galvanized steel pipe and seamless pipe .
Our company products are widely recognized and trusted by customers and can meet continuously changing economic and social needs,
We welcome new and old customer from all over the world to contact us for future business relationships and mutual success
We specialized in manufacturing the full size of square tubes and rectangular tubes:20X20-600X600mm,square tubes,20X30-600X800mm rectangular tubes,for more than 20 years since 1997.
SS400 ERW Square/Rectangular Steel Tube/Hollow Section Product Description:
| commodity | SS400 ERW Square/Rectangular Steel Tube/Hollow Section |
| O.D | 20*20-600*600mm/20*30-600*800mm |
| W.T | 1.0-35.0mm |
| length | 3-12m or according to per request |
|
material | Q195-Grade B, SS330, SPC, S185 Q215-Grade C,CS Type B, SS330, SPHC Q235---Grade D, SS400, S235JR, S235JO, S235J2 Q345---SS500, ST52, ST37 10#,20#,45#, etc
|
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Surface treatment | 1, Oiled 3, Painting black |
| Test | 1.Chemical Component Analysis (C,Si,Mn,S,P) 2.Mechanical Properties (Tensile Strength, Yield Strength, Elongation ) MTC is supplied. 3.Third party inspection: BV,SGS |
|
Package | 1, Big OD: in bulk 2, Small OD: packed by steel strips 3, Plastic bags 4, According to customer`s requirements |
| Delivery | Normally 10-20 days after get deposits or according to quantity |
|
Advantage | 1.large inventory |
Chemical Composition:
| Yield Strength Grade | Demotic Raw-material Grade |
| 235 | Q235B, Q235C, Q235D, Q235qC, Q235qD |
| 345 | Q345A, Q345B,Q345C,Q345D,Q345Qc, Q345Qd, StE355, B480GNQR |
Carbon Equivalent:
Ceq(%)=C+Mn/6+Si/24 +Ni/40+Cr/5+Mo/4+V/14
I grade product Ceq(%)
| Yield Strength Grade | 235 | 345 | 390 |
| Ceq(%) | ≤0.36 | ≤0.43 | ≤0.45 |
| Note: In order to improve the performance of steel,390 could add the microelement such as V, Nb, Ti, Mo and N etc. | |||
Mechanical Property:
| Yield Strength Grade | W.T | Yield Strength | Tensile Strength (Mpa) | Elongation | (20°C) Impact Value J |
| (mm) | (Mpa) | (%) | |||
| 235 | 4~12>12~22 | ≥235 | ≥375 | ≥23 | ≥27 |
| 345 | 4~12>12~22 | ≥345 | ≥470 | ≥21 | ≥27 |
| 390 | 4~12>12~22 | ≥390 | ≥490 | ≥19 | ≥27 |
Surface Qualty:
1.Cold bending section steel surface can not have bubbles,cracks,inclusions and transverse stratification,wrinkle,buckle and so on. Allow slight pit,convex,indentation,scratch and presure into the iron oxide,but is not greater than 10% of nominal wall thickness.
2.Surface defects allowed use grinding method to clear up,but after cleaning the thickness should be no less than minimum allowable thickness.
3.If have special requriements on surface quality of cold bending section steel ,determined by supply and demand.
Welding Quality:
1.Welds of cold bending section steel shall not be skip welding,lap welding and burn through.
2.Weld flaw allowed repair welding and grinding,but after welding and griding shold reach requirements specified in this standard.
3. Burrs around welding should be removed, burrs inside seams do not clear up,when have special request determined by supply and demand.
SS400 ERW Square/Rectangular Steel Tube/Hollow Section Product Photo Show:
SS400 ERW Square/Rectangular Steel Tube/Hollow Section Product Application:
1. Machinery manufacture: glass machinery, agricultural machinery, textile machinery, papermaking machinery
food machinery, electrical equipment, sanitation equipment.
2. Roads and Bridges: railway, aviation, expressway, overpass, road fence, traffic signs.
3. Construction Engineering: steel structure construction, sports venue, three-dimensional garage, exhibition hall.
4. Decoration: wrought iron doors and windows, outdoor advertising, pavilion and vestibule, glass curtain wall.
5. Transportation: automobile manufacture, ship manufacture, container, tricycle, tower crane.
Packaging:
Shipping:
Company Introduction :
Our company focuses on the usage, development and research of square and rectangular tubes over the passed 20 years. We purchased three production lines at the cost of over 16 million for expansion of the new factory in 2012, These production lines make full-sizes of square tubes and rectangular tubes: 20x20mm-600x600mm, 20x30mm-600x800mm, Thickness:1.0mm-35.0mm,over 2800 kinds of specifications.
| Executive standard | GB/T912-1989 | EN10025-1993 | DIN17100-80 | ASTM-A106/A500 | JISG3466 |
| GB/T3274-1988 | EUROPE | GERMANY | USA | JAPAN | |
| CHINA | |||||
| Steel grade | Q195 Q215A Q215B | S185 | St33 | SS330 | |
| Q235B | S235JR | St37-2 | GR.A | SS400 | |
| Q235C | S235JO | St37-3 | |||
| Q345B | S355JRH | St52-2 | GR.B | STK 490 | |
| Q345C Q390B Q390C | S355JOH | St52-3 | GR.C | ||
| Q345D | S355J2H | GR.D | |||
| Q345E | |||||
| 20# | GR.B | ||||
| 45#,20Mn2,27SiMn | |||||
| OD range | 20mmX20mm-600X600mm | ||||
| 20mmX30mm-600X800mm | |||||
| Wall Thickness | 1.0mm-35.0mm | ||||
Our company have passed ISO9001:2008 quality management system certification and have passed Europe Union EN10210-1:2006 ,10219-1:2006 CE certification in 2012. Company resorts more variety,large inventory,high quality,loe price,short delivery time,good after-sales service and many other competitive advantages,to become designated supplier of many large enterprises.Customers throughout our country in more than 20 provinces and cities and exported to the United States,Canada,Russia, India,Malaysia,Europe and other countries and regions.
How to contact me?
Email: steelpipeexport (at)yahoo.com
WhatsApp:18905315739
Wechat:554717325
QQ:554717325
Product Categories : Square and Rectangular tube