Product description:
An Elliptical tube is a type of steel pipe with an elliptical cross-section, featuring unique geometric properties and mechanical advantages. It is widely used in construction, industrial equipment, and transportation fields.
A Flat elliptical tube—also known as a flattened Oval tube or elliptical steel pipe—is a specially shaped metal tube featuring a smooth, flattened oval cross-section. It combines the strength of a round tube with the streamlined design of an ellipse, making it ideal for applications that require aesthetic appeal, high strength, and aerodynamic efficiency.
Flat elliptical tubes are widely used in architectural decoration, structural frameworks, automotive systems, furniture manufacturing, sports equipment, and heat exchangers. Their unique shape offers superior resistance to bending and excellent surface appearance, making them both functional and visually attractive.
Parameters:
Product Name: | Special-shaped Tube - Elliptical Tube |
Material: | 1010, 1020, 1045, 5140, 4130, 4140, S355 |
Tolerance: | ± 1% |
Shape: | Elliptical (Flat Ellipse / Rectangular Ellipse / Duck Egg Ellipse) |
Length: | Customized according to customer requirements |
Weighing Method: | Weighing |
Delivery Condition: | Cold state / Tempered state |
Processing Services: | Bending, Unfolding, Welding, Punching, Cutting |
Material: | Steel |
Specification: | 6*10 - 200*300 |
Wall Thickness: | 1mm - 30mm |
Diameter: | 2 - 500mm |
Length: | 5 - 12m, or customized as needed |
Standards: | GB/T3094, ASTM B210, ASTM B241, ASTM B234, JIS H4080-2006, etc. |
Process: | Extrusion / Cold Drawing |
Customization Services: | Coiled Tube, Short Cut, Bending, Punching, Titanium Coating |
Brand: | Hengxin Zhicheng |
Applicable Industries: | Construction Machinery / Heavy Machinery / Mining Industry, etc. |
Sales Unit: | Ton |
Port: | Shanghai Port or Designated Port |
Packaging Details: | Steel Strip Bundling, Wooden Box |
Payment Terms: | Telegraphic Transfer |
Trade Terms: | EXW, FOB, CIF, DAP, DDP |
Delivery Time: | 20 - 35 days |
Service: | OEM and ODM |
Minimum Order Quantity: | 1 ton |
Pictures:



Material and Composition
Flat elliptical tubes can be produced from a wide range of materials to meet diverse performance and environmental requirements:
Carbon Steel (e.g., Q235, S235, AISI 1010, 1020, 1045): Strong and economical for structural applications.
Stainless Steel (e.g., 304, 316, 316L): Excellent corrosion resistance, ideal for outdoor and decorative use.
Aluminum Alloy (e.g., 6061, 6063): Lightweight, corrosion-resistant, suitable for transport and furniture.
Alloy Steel (e.g., 4140, 4130): High tensile strength and wear resistance for mechanical applications.
These materials can be hot rolled, cold drawn, or extruded depending on the required strength, surface finish, and dimensional accuracy.
Manufacturing Process
Flat elliptical tubes are manufactured through advanced forming and shaping technologies that ensure smooth curves, consistent wall thickness, and precise dimensions:
Tube Preparation: Start with round or oval seamless/welded tubes.
Flattening and Shaping: The tube is pressed or rolled through a special mold to create a flat elliptical cross-section.
Heat Treatment: Applied to relieve stress and enhance ductility and strength.
Cold Drawing or Extrusion: Improves dimensional accuracy and surface smoothness.
Surface Finishing: Polishing, pickling, sandblasting, or coating for corrosion protection.
Inspection and Quality Testing: Ensures uniformity, mechanical strength, and flawless surface.
The result is a dimensionally accurate tube with a smooth, elegant elliptical shape ideal for both structural and aesthetic applications.
Key Features and Advantages
Elegant Design: The elliptical shape provides a modern and stylish appearance.
Aerodynamic Efficiency: Reduced wind resistance in architectural and vehicle applications.
Excellent Strength and Rigidity: Withstands bending and torsion loads effectively.
Smooth Surface Finish: Ideal for decorative and exposed structures.
Lightweight Yet Strong: Provides high load-bearing capacity with reduced material usage.
Corrosion and Weather Resistance: Available in stainless steel or coated finishes.
Easy to Fabricate and Weld: Compatible with standard cutting, bending, and welding methods.
In stock:

Application:

The flat elliptical tube is used across many industries where design aesthetics and mechanical strength are equally important:
Architectural and Structural Engineering: Used for handrails, balustrades, columns, and curtain walls.
Automotive Industry: Applied in frames, exhaust systems, roll cages, and chassis components.
Furniture and Interior Design: Perfect for modern furniture frames, tables, and chairs.
Sports and Fitness Equipment: Used in treadmill frames, bicycle parts, and gym machines.
Heat Exchangers and Fluid Systems: Provides efficient heat transfer and fluid flow in compact systems.
Transportation and Marine Industries: Lightweight structure for ships, trains, and public vehicles.
Its smooth contours and high structural stability make it a preferred choice for both functional engineering and decorative design.
Company profile:



Since its establishment in 2014, Wuxi Hengxin Zhicheng Co., Ltd. has rapidly grown into a leading enterprise in the steel manufacturing industry. We focus on the research, production and sales of seamless steel pipes, special-shaped steel pipes and hydraulic cylinders, and are committed to providing customers with high-quality, customizable products that fully meet diverse application needs.
Our products are exported to global markets such as the Middle East, South America, Africa, and Southeast Asia, and are highly trusted by large purchasers and customers in the steel industry. We always prioritize quality, reliability and customer service, and attach great importance to establishing long-term and stable cooperative relationships with customers. We provide each customer with tailor-made solutions.
We continuously promote technological innovation and improve service capabilities and production efficiency. Through an efficient online platform, you can browse our best-selling products at any time and communicate with the sales and support teams in real time to conveniently obtain the information you need. We sincerely invite partners from all countries to visit, exchange and provide guidance, and jointly explore more possible cooperation opportunities!
Certification:

Packaging and Transportation:


【Package standard】
We use steel bands to tightly package the products into hexagonal bundles. The structure is stable and not prone to deformation. Each bundle is equipped with two high-strength nylon straps to ensure the safety and convenience of the lifting operation.
To meet various maritime transportation needs, we offer a range of customized packaging options, including full coverage with oilcloth, moisture-proof wooden boxes, and high-strength protective frame packaging, to ensure the maximum safety of goods during transportation.
【Guarantee for transportation】
We offer 20-foot and 40-foot standard container transportation services. Each container can carry up to 25 tons of goods and we can accept trial orders with a minimum of 5 tons. This allows for flexible adaptation to your purchasing scale. All packaging complies with maritime shipping standards to ensure that the goods are delivered to the destination efficiently and safely.
Why us?
We focus on the research, development, production and sales of seamless steel pipes, special-shaped steel pipes and hydraulic cylinders. We have a complete production chain and an advanced equipment system, including piercing machines, cold drawing machines, hot rolling machines, high-precision flaw detection and testing equipment. The company has passed multiple authoritative certifications such as ISO9001, API, SGS, CCS, DNV, ABS, CE, RoHS, etc., ensuring that each product complies with international standards. We are committed to providing customers with high-quality, customizable solutions to meet diverse application needs.
Relying on our own built processing base and modern workshops, combined with multiple branches and storage centers across the country, we have achieved sufficient inventory and efficient logistics coordination, significantly shortening the delivery cycle and ensuring the rapid delivery of orders.
We have established a complete service and support system. After the order is signed, the professional after-sales team can provide timely and safe on-site guidance and technical support to ensure that customers are at ease throughout the process from procurement to use.
FAQ:
1. Do you support customized design and production?
Sure. We have a professional engineering team that can conduct customized design and production with special sizes, control systems or OEM according to your requirements.
2. How fast can you deliver?
In stock sizes, it takes 3-5 days. For customized sizes, it takes 30-35 days.
3. What payment methods do you support?
We support TT payment. Generally, 30% to 50% of the payment is made in advance, and the remaining amount is paid before shipment.
4. Can you provide material certification (MTC)?
Yes, we will provide MTC to you after production is completed to ensure that the material quality meets the standards.
5. What is the minimum order quantity?
Generally, we accept trial orders. The minimum order quantity is 1-3 tons, which can be determined according to different products.
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