S36 Hexagonal Pipe

The S36 hexagonal pipe is a precision-engineered steel tube with a six-sided cross-section, widely used in mechanical structures, hydraulic systems, automotive components, and construction frameworks. Made from S36 carbon steel, this pipe offers a superior combination of strength, hardness, and machinability, making it ideal for both structural and functional applications that require excellent dimensional accuracy and resistance to deformation.

Unlike traditional round pipes, hexagonal pipes feature flat surfaces and sharp edges that provide greater torsional strength, easier handling, and aesthetic versatility, which are essential in modern mechanical design and industrial fabrication.

Hexagonal tubes are also known as Hexagonal steel pipes. They are Special-shaped steel pipes with a hexagonal cross-section, made from steel. They are mainly divided into welded type and seamless type. The materials include carbon steel and stainless steel models such as 304. They belong to the branch of special-shaped steel pipes and the series of products include octagonal pipes, rhombic pipes, elliptical pipes, etc., totaling over ten types of cross-sectional shapes. This pipe material is widely used in mechanical parts, building structures, automobile and ship manufacturing, etc., covering specifications ranging from 12.7 to 400mm in cross-sectional size and 0.6 to 20mm in wall thickness.

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Material Overview: S36 Carbon Steel

S36 steel is a medium carbon structural steel known for its balanced mechanical properties and consistent metallurgical structure. Its chemical composition typically includes:

• Carbon (C): 0.33–0.39%
• Manganese (Mn): 0.60–0.90%
• Silicon (Si): 0.15–0.35%
• Sulfur (S) and Phosphorus (P): ≤ 0.035%
• This composition provides excellent tensile strength (≥ 620 MPa), yield strength (≥ 360 MPa), and good ductility, allowing S36 hexagonal pipes to perform reliably under mechanical stress, vibration, and heavy load conditions.

Manufacturing Process

The production of S36 hexagonal pipes involves a sequence of precision-controlled processes to ensure geometric consistency and superior material integrity:

• Raw Material Selection: Premium-quality S36 steel billets are selected for their purity and structural uniformity.
• Hot Rolling or Cold Drawing: The base round tube is formed with consistent wall thickness.
• Hexagonal Shaping: Pipes are drawn or extruded through precision dies to achieve the required hexagonal geometry.
• Heat Treatment: Normalizing, quenching, and tempering improve hardness and toughness.
• Surface Finishing: Polishing, pickling, or black oxide coating protects against corrosion.
• Dimensional Calibration: Ensures accurate across-flat dimensions and perfect corner angles.
• Each step is monitored with strict quality control to achieve high precision, smooth surfaces, and excellent straightness.

Key Features and Advantages

• High Mechanical Strength: Designed to handle torque and axial loads with ease.
• Superior Machinability: Ideal for cutting, threading, drilling, and CNC processing.
• Excellent Dimensional Accuracy: Tight tolerance on flat-to-flat distance and wall thickness.
• Corrosion Resistance: Protective coatings available for long-term durability.
• Stable Hexagonal Geometry: Provides superior grip and anti-slip characteristics.
• Good Weldability: Suitable for various welding processes such as TIG, MIG, and arc welding.
• Customizable Sizes: Available in different diameters, wall thicknesses, and lengths.

Applications:

S36 hexagonal pipes are widely used in industries that demand precision, high torque resistance, and aesthetic design. Common applications include:

• Mechanical Components: Shafts, bushings, connectors, spacers, and couplings.
• Automotive Parts: Steering rods, axles, fasteners, and drive shafts.
• Hydraulic and Pneumatic Systems: Tubes and connectors for high-pressure fluid transfer.
• Machinery and Equipment Manufacturing: Tool bodies, frames, and machine supports.
• Construction and Architecture: Structural supports, decorative railings, and frames.
• Fasteners and Tools: Nuts, bolts, wrenches, and precision hardware parts.
• The hexagonal shape provides excellent grip, stability, and rotational control, making it indispensable for assembly systems and torque-transmitting mechanisms.

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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.