| After-sales Service: | Support Online |
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| Warranty: | 1year |
| Type: | Seamless |
| Technique: | Cold Rolled |
| Material: | Carbon Steel |
| Surface Treatment: | Polished |
| Samples: |
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| Customization: |
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Hexagonal steel pipes, also known as irregular steel pipes, also have shapes such as octagonal pipes, diamond pipes, and elliptical pipes. For economic cross-section steel pipes, including those with non circular cross-section, equal wall thickness, variable wall thickness, diameter and wall thickness along the length direction, symmetrical and asymmetric cross-section, etc. Such as square, rectangular, conical, trapezoidal, spiral, etc. Specially shaped steel pipes are more suitable for the unique usage conditions, saving metal and improving labor productivity in component manufacturing. It is widely used in aviation, automobiles, shipbuilding, mining machinery, agricultural machinery, construction, light textile, and boiler manufacturing. The methods for producing shaped pipes include cold drawing, electric welding, extrusion, hot rolling, etc. Among them, the cold drawing method has been widely used.
| Brand | Chemical composition (mass fraction) (%) | |||||
| C | Si | Mn | Cr | Ni | Cu | |
| ≤ | ||||||
| 1010 | O.07~O.13 | ≤O.07 | O.25~O.50 | O.15 | 0.30 | 0.25 |
| 1020 | O.17~0.23 | 0.17~0.37 | 0.35~0.65 | O.25 | O.30 | O.25 |
| 1025 | O.22~0.29 | 0.17~O.37 | O.50~O.80 | O.25 | O.30 | 0.25 |
| 1030 | O.27~O.34 | O.17~O.37 | O.50~O.80 | 0.25 | O.30 | 0.25 |
| 1035 | O.32~0.39 | O.17~O.37 | O.50~O.B0 | 0.25 | O.30 | 0.25 |
| 1040 | 0.37~O.44 | 0.17~O.37 | O.50~O.80 | O.25 | O.30 | O.25 |
| 1045 | O.42_O.50 | O.17~O.37 | 0.50~0.80 | 0.25 | O.30 | 0.25 |
| 1050 | 0.47~0.55 | 0.17~O.37 | 0.50~0.80 | 0.25 | O.30 | O.25 |
| 1055 | O.52~0.60 | O.17~O.37 | O.50~0.80 | O.25 | 0.30 | O.25 |
| 1060 | 0.57~O.65 | 0.17~O.37 | 0.50~O.80 | O.25 | O.30 | 0.25 |
| 1065 | O.62~0.70 | 0.17~0.37 | O.50~O.80 | O.25 | O.30 | O.25 |
| RODUCT NAME | Precision shaped seamless steel pipe |
| MATERIAL | Q195, Q235, Q345; ASTM A53 GRA,GRB; STKM11,ST37,ST52, 16MN,ETC. |
| WALL THICKNESS | 0.6MM~25MM |
| LENGTH | AS CUSTOMER'S ACTUAL REQUES |
| STANDARD | JIS G3466, EN 10219, GB/T 3094-2000, GB/T 6728-2002 |
| BRAND | MEIDE |
| SECTION SHAPE | Circle/Triangle/Hexagonal/Other Shapes |
| PACKING | BUNDLE, OR WITH ALL KINDS OF COLORS PVC OR AS YOUR REQUIREMENTS |
| ENDS | PLAIN END/BEVELED,PROTECTED BY PLASTIC CAPS ON BOTH ENDS, CUT QUARE,GROOVED,THREADED AND COUPLING,ETC. |
| MOQ | 1 TONS, MORE QUANTITY PRICE WILL BE LOWER |
| SURFACE TREATMENT | 1. PVC,BLACK AND COLOR PAINTING 2. TRANSPARENT OIL,ANTI-RUST OIL 3. ACCORDING TO CLIENTS REQUIREMENT |
| ORIGIN | tianjin shanghai qingdao guangzhou |
| DELIVERY TIME | USUALLY WITHIN 10-30 DAYS AFTER RECEIPT OF ADVANCE PAYMENT |
| Brand | Sample blank size/mm | mechanical property | Hardness of steel delivered HBSl0 / 300 ≤ | |||||
| Normalizing/quenching/ tempering | ób/MPa | ós/MPa | δ5(%) | Ψ(%) | AKu2/J | |||
| ≥ | Unheat-treated steel | Annealed steel | ||||||
| 1010 | 25 | 930-/-/ | 315 | 185 | 33 | 55 | 137 | |
| 1020 | 25 | 910/-/- | 4lO | 245 | 25 | 55 | 156 | |
| 1025 | 25 | 900/870/600 | 450 | 275 | 23 | 50 | 170 | |
| 1030 | 25 | 880/860/600 | 490 | 295 | 21 | 50 | 179 | |
| 1035 | 25 | 870/850/850 | 530 | 315 | 20 | 45 | 197 | |
| 1040 | 25 | 860/840/60D | 570 | 335 | 19 | 45 | 217 | 187 |
| 1045 | 25 | 850/840/600 | 600 | 355 | 16 | 40 | 229 | 197 |
| 1050 | 25 | 830/830/600 | 630 | 375 | 14 | 40 | 24l | 207 |
| 1055 | 25 | 820/820/600 | 645 | 380 | 13 | 35 | 255 | 217 |
| 1060 | 25 | 810/-/- | 675 | 400 | 12 | 35 | 255 | 229 |
| 1065 | 25 | 810/-/- | 695 | 410 | lO | 30 | 255 | 229 |
| +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. |
1. For the storage of special-shaped steel pipe products, the site or warehouse should be selected in a clean and tidy place with smooth drainage, and away from factories and mines with harmful gases or dust. The ground should be cleaned of weeds and all debris to maintain the cleanliness of the steel.
2. In the warehouse, it is not allowed to stack materials that have a corrosive effect on steel, such as acid, alkali, salt, and sensitive soil. Different types of steel should be classified and stacked to avoid confusion and contact with corrosive objects.
3. Large steel pipes, rails, steel plates, large-diameter steel pipes, forgings, etc. can be stacked outdoors.
4. Small and medium-sized shaped steel, wire rods, steel bars, medium diameter steel pipes, steel wires, and wire ropes can be stored and placed in a well ventilated material shed, and it is important to remember to cover the top and cushion the bottom.
5. Small scale steel, thin steel plates, steel strips, small diameter or irregular steel pipes, various cold-rolled and cold-drawn steels, as well as expensive and easily corrosive metal products, can be stored and placed in storage.
6. The warehouse should be selected based on geographical conditions, and ordinary closed warehouses should be used when deemed appropriate, that is, warehouses with roofs, walls, tight windows, and ventilation devices.
7. The warehouse requires frequent maintenance of a suitable storage background, with attention to ventilation on sunny days and closed to prevent moisture on rainy days.
Packaging |
1. by bundles, each bundle weight under 3 tons, for small outer diameter steel bars, each bundle with 4 - 8 steel strips. 2. after making by bundle, covered with Polyethylene waterproof cloth. 3. make black paints painting on each bar, then make bundles |
| 20 feet container contains dimension | Length under 6000mm |
| 40 feet container contains dimension | Length under 12000mm |
| By bulk vessel | Freight charge is low by bulk cargo, and large heavy sizes can not be loaded into containers can shipping by bulk cargo |
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
Suppliers with verified business licenses
Audited Supplier 
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