| After-sales Service: | Support Online |
|---|---|
| Warranty: | 1year |
| Type: | Seamless |
| Technique: | Cold Drawn |
| Material: | Alloy Steel |
| Surface Treatment: | Black/Oiled/Galvanization |
| Samples: |
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| Customization: |
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Audited Supplier 
Specially shaped seamless steel pipes are a general term for seamless steel pipes with other cross-sectional shapes except for circular pipes. According to the different cross-sectional dimensions of steel pipes, they can be divided into equal wall thickness irregular seamless steel pipes (code D), unequal wall thickness irregular seamless steel pipes (code BD), and variable diameter irregular seamless steel pipes (code BJ). Specially shaped seamless steel pipes are widely used in various structural components, tools, and mechanical components. Compared with circular pipes, special-shaped pipes generally have larger moments of inertia and cross-sectional modulus, and have greater bending and torsion resistance, which can greatly reduce structural weight and save steel.
| Material | C | Si | Mn | P | S | Cr | Ni | Cu | Mo |
| ASTM 5115 GB 15Cr |
0.12-0.18 | 0.17-0.37 | 0.4-0.7 | 0.035 | 0.035 | 0.7-1 | 0.3 | 0.3 | 0.15 |
| ASTM 5120 GB 20Cr |
0.18-0.24 | 0.5-0.8 | 0.7-0.9 | 0.035 | 0.035 | 0.7-1 | 0.3 | 0.3 | 0.15 |
| ASTM 5130 GB 30Cr |
0.27-0.34 | 0.17-0.37 | 0.5-0.8 | 0.035 | 0.035 | 0.8-1.1 | 0.3 | 0.3 | 0.15 |
| ASTM 5135 GB 35Cr |
0.32-0.39 | 0.17-0.37 | 0.5-0.8 | 0.035 | 0.035 | 0.8-1.1 | 0.3 | 0.3 | 0.15 |
| ASTM 5140 GB 40Cr | 0.37-0.44 | 0.17-0.37 | 0.5-0.8 | 0.035 | 0.035 | 0.8-1.1 | 0.3 | 0.3 | 0.15 |
| ASTM 5145 GB 45Cr | 0.42-0.49 | 0.17-0.37 | 0.5-0.8 | 0.035 | 0.035 | 0.8-1.1 | 0.3 | 0.3 | 0.15 |
| Product details |
| Material: ST52,C20,SS400,ST37 ,SAE1020 ,16Mn,10#,45#, Q235,Q345,Q195,20# |
| Section Shape:triangular/hexagonal/triangular |
| Place of Origin: |
| Liaocheng, Shandong province, China |
| Secondary Or Not:Non-secondary |
| Application: rotavator |
| Technique:Cold Drawn |
| Surface Treatment:none |
| Alloy Or Not:Non-alloy |
| Size: 53.6*3.8&44.6*5.5mm and 43.4*3.3/36.1*4.4mm etc |
| OD: 15-80mm |
| Thickness: 1 - 14 mm |
| Length:1-9m or cutting as you require |
| Tolerance: we can control it within OD/Thickness +/-0.1mm |
| Hardness: HB170-217. |
| Payment: 30% by T/T and the 70% balance should be paid against L/C |
| OEM: Yes |
| Trade terms: EXW,FOB,CIF,CNF |
| Usage: these pipes are mainly used for agricultural machine PTO shaft. |
| Quality inspection |
| 1.Heat pipes inspection:to measure the outer diameter and the tolerance of the pipe. 2.General inspection:to chcek the inner diameter and thesurface of the pipe. 3.Finished product inspection:we need test the pipeone by one through Eddy Current Test. |
| Packaging & Delivery |
| Packaging Details |
| Inner packing: Plastic Bags, White or Color Individal Boxes. Outer Packing: Wooden Boxes or Carton Boxes. standard export bundle wrapped with strong steel strip,as per customer's requirements. |
| Delivery Time:30 days after the order |
| Sample diameter d mm |
Heat treatment or condition | tensile strength σb Mpa |
Yield point σs Mpa |
Elongation δ % |
hardness HBW |
Impact absorbed energy KV2 J |
Reduction of area ψ % |
| d=25 | Quenching+tempering | ≥735 | ≥490 | ≥11 | ≥45 | ≤179 | ≥55 |
Pipeline transportation, boiler pipes, hydraulic/automotive pipes, oil/natural gas drilling, food/beverage/dairy products, mechanical industry, chemical industry, mining, construction and decoration, special applications
| +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. 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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