| Type: | Seamless |
|---|---|
| Technique: | Cold Drawn |
| Material: | Carbon Steel |
| Surface Treatment: | Oil, Bared, Black Paint, Galvanized |
| Usage: | Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose |
| Section Shape: | Square/Rectangular |
| Samples: |
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| Customization: |
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Pipes are divided by production process: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes
Square pipes are classified according to surface treatment: hot-dip galvanized square pipes, electrogalvanized square pipes, oiled square pipes, and pickled square pipes
Square tubes are classified according to wall thickness: ultra thick walled square tubes, thick walled square tubes, and thin-walled square tubes
| Thickness (diameter) t(d) mm |
tensile strength σb Mpa |
Yield point σs Mpa |
Elongation δ % |
| ≤16 | 370~500 | ≥235 | ≥26 |
| >16~40 | 370~500 | ≥225 | ≥26 |
| >40~60 | 370~500 | ≥215 | ≥25 |
| >60~100 | 370~500 | ≥215 | ≥24 |
| >100~150 | 370~500 | ≥195 | ≥22 |
| >150~200 | 370~500 | ≥185 | ≥21 |
| Production Range | Outer Diameter:10-1020mm (0.4 inch - 40.16inch) |
| Wall Thickness:1-200mm (0.04 inch - 7.89 inch) | |
| Material / Grade | Carbon Steel: GB/T 8162 & 8163 & 3639: 10#, 20#, 35#, 45#, 55#, Q235B, Q235C, CF53, A105 ASTM A519: 1010, 1020, 1026, 1035, 1045, 1050 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: C10/CK10, C22/CK22, C35/CK35, C45/CK45, CF53 JIS3441/JIS3444/JIS3445: STKM11A, STKM12A/STKM12B/STKM12C, STKM13A/STKM13B/STKM13C JIS G4051: S10C, S20C, S25C, S35C, S45C, S55C |
| Alloy Steel: GB/T 8162 & 8163 & 3639: 16Mn(Q345B), 20Cr, 40Cr, 15CrMo, 20CrMo, 28CrMo, 30CrMo, 35CrMo, 42CrMo, 20CrMnTi, 40MnMoV, 20Mn2, ZF6, 16MnCr5, 20MnCr5, 38Mn2V, 09CrCuSb(ND) ASTM A519: 5120, 5140, 4130, 4135, 4140 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: ST52, EN10084-1998 20Cr4, 41Cr4, 15CrMo4, 25CrMo4, 35CrMo4, 42CrMo4, 16MnCr5 JIS3441/JIS3444/JIS3445: SCM432/SCRRM3, SCM4 JIS G4053: JIS SCr420, JIS SCr440, SCM415, SCM420 |
|
| stainless steel: 201 202 301 304 304L 304H 309 309S 310 310S 316 316L 316Ti 321 317 317L 321 329 347 347H 409L 410 410S 420 420JI 420J2 430 431 434 436L 439 441 443 444 S20100, S20200, S30100, S30400, S30403, S30908, S31008, S31600, S31635, SUS304HTB, SUS304LTB,SUS309TB,SUS309STB,SUS310TB,SUS310STB,SUS316TB,SUS316HTB, SUS316HTB, SUS316LTB,SUS316TiTB,SUS317TB,SUS317LTB,SUS836LTB,SUS890LTB,SUS321TB, SUS409LTB, SUS410TB,SUS410TiTB,SUS430TB,SUS430LXTB,SUS430JL1TB,SUS436LTB |
|
| Technique | Cold Drawn / Cold Rolled |
| Shape | Square/Rectangular |
| Further Processing for Steel Tubes | Final Annealing, Cutting, Chamfer, Threading, Inner diameter or Outer Diameter Lathe, Surface Shot Blasting, Laser Marking |
Construction, machinery manufacturing, steel construction and other projects, shipbuilding, solar power generation support, steel structural engineering, power engineering, power plant, agricultural and chemical machinery glass curtain wall, automobile chassis, airport, boiler construction, highway railings, housing construction, pressure vessels, oil storage tanks, bridges, power station equipment, lifting and transportation machinery and other high load welded structural parts.
Delivery Condition:| +C(BK) | Cold drawn/hard.After the last cold forming,no heat treatment. |
| +LC(BKW) | Cold drawn/soft.After the last heat treatment follows the cold drawing there is a light finishing pass. |
| +SR(BKS) | Cold drawn and stress relieved annealed. After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere. |
| +A(GBK) | After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere. |
| +N(NBK) | Normalized. After the last cold drawing process the tubes are annealed in a controlled atmosphere. |
| Out Diameter | Wall Thickness | Square Pipe/Tube(mm) | Rectangular Pipe/Tube(mm) | |||
| Inch | mm | mm | 16×16×0.4~1.5 | 70×70×2.0~6.0 | 10×20×0.6~1.5 | 30×60×1.0~4.5 |
| 1/2 | 21.3 | 0.6-3.0 | 18×18×0.4~1.5 | 75×75×2.0~6.0 | 14×21×0.6~1.5 | 40×50×1.0~4.5 |
| 3/4 | 26.9 | 0.6-3.0 | 20×20×0.4~1.5 | 80×80×2.0~6.0 | 15×30×1.5~1.5 | 40×60×1.0~5.0 |
| 1 | 33.4 | 1.0-3.0 | 25×25×0.6~2.0 | 85×85×2.0~6.0 | 15×38×0.6~1.5 | 40×80×1.5~5.0 |
| 1 1/4 | 42.3 | 1.0-4.0 | 30×30×0.6~4.0 | 95×95×2.0~8.0 | 20×30×0.6~2.0 | 40×100×2.0~5.0 |
| 1 1/2 | 48.3 | 1.0-4.0 | 34×34×1.0~2.0 | 100×100×2.0~8.0 | 20×40×0.8~2.0 | 50×60×2.0~5.0 |
| 2 | 60.3 | 1.5-4.0 | 35×35×1.0~4.0 | 120×120×4.0~8.0 | 20×50×1.0~2.0 | 50×80×2.0~5.0 |
| 2 1/2 | 76.1 | 1.5-4.0 | 38×38×1.0~4.0 | 150×150×6.0~10.0 | 22×35×0.9~2.0 | 50×100×2.0~8.0 |
| 3 | 88.9 | 1.5-9.5 | 40×40×1.0~4.5 | 180×180×6.0~12.0 | 25×40×0.9~3.75 | 60×80×2.0~6.0 |
| 4 | 114.3 | 2.0-9.5 | 44×44×1.0~4.5 | 200×200×6.0~12.0 | 25×65×1.0~2.0 | 80×100×2.0~8.0 |
| 5 | 141.3 | 3.0-9.5 | 45×45×1.0~5.0 | 220×220×6.0~14.0 | 30×40×1.0~3.75 | 120×60×2.5~10.0 |
| 6 | 168.3 | 3.0-12.0 | 50×50×1.0~5.0 | 250×250×6.0~14.0 | 30×45×1.0~3.75 | 120×80×2.5~10.0 |
| 8 | 219.1 | 3.2-12.0 | 60×60×1.5~5.0 | 30×50×1.0~4.0 | ||
| 10 | 273 | 3.2-12.0 | ||||
| 12 | 323.8 | 6.0-15.0 | ||||
| 14 | 355.6 | 8.0-15.0 | ||||
| 16 | 406.4 | 8.0-20.0 | ||||
Packaging and delivery of square and rectangular hollow section pipes and steel pipes:
1. Who are we?
Our headquarter is located in Shandong, China. Since 2022, we have sold to North America (60.00%), Western Europe (14.00%) and South America (6.00%). There are about 11-50 people in our office.
2. How do we guarantee quality?
Always provide pre-production samples before mass production;
Always carry out final inspection before shipment;
3. What can you buy from us?
Copper, aluminum, die steel, titanium, customized machine parts
4. Why should you buy from us instead of other suppliers?
The company has 25 years of production experience. It has advanced precision production equipment, modern large warehouse, 200000 tons of inventory goods and a number of long-term stable cooperative customers.
5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW
Accepted payment currency: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, RMB, Swiss franc;
Accepted payment type: T/T, L/C, D/P D/A, PayPal;
Optional ports: Tianjin, Shanghai, Guangzhou;
Spoken: English, Chinese
6. How can we get your price?
A. We need the following information to quote for you:
1). Product Name
2). standard
3). Material grade (chemical composition)
4). dimension
5). amount
6). Special part drawin
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