S50 hexagonal pipe

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.

The S50 hexagonal pipe is a premium-grade carbon steel pipe with a six-sided geometric profile, designed for mechanical engineering, automotive parts, hydraulic systems, and structural applications requiring superior strength, precision, and durability. Made from S50 medium carbon steel, this hexagonal pipe combines excellent mechanical performance, hardness, and machinability, making it ideal for components subjected to high torque, vibration, and impact.

Its hexagonal shape not only provides improved torque resistance and gripping efficiency compared to round tubes but also ensures high precision during assembly and machining. These unique characteristics make S50 hexagonal pipes a preferred choice in mechanical, automotive, and industrial manufacturing.

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Material Overview: S50 Carbon Steel

S50 steel, classified as a medium carbon structural steel, features a strong balance of hardness, tensile strength, and ductility. The typical chemical composition includes:

• Carbon (C): 0.47–0.53%
• Manganese (Mn): 0.60–0.90%
• Silicon (Si): 0.15–0.35%
• Sulfur (S): ≤ 0.035%
• Phosphorus (P): ≤ 0.035%

This composition allows S50 steel to deliver tensile strength above 700 MPa, yield strength above 400 MPa, and excellent wear resistance after proper heat treatment. It can be easily quenched and tempered to achieve specific mechanical properties, making it suitable for demanding industrial environments.

Manufacturing Process

S50 hexagonal pipes are manufactured through a controlled forming and heat-treatment process to achieve precision geometry and high structural integrity:

• Raw Material Selection: Premium S50 carbon steel billets are selected for their purity and strength.
• Hot Rolling or Cold Drawing: Produces seamless or welded base tubes with uniform wall thickness.
• Hexagonal Forming: Tubes are drawn or rolled through precision dies to create a six-sided profile.
• Heat Treatment: Quenching and tempering improve hardness, tensile strength, and toughness.
• Surface Finishing: Polishing, pickling, or black oxide coating enhances corrosion resistance.
• Precision Inspection: Ensures accurate hexagonal dimensions, straightness, and surface smoothness.

This process ensures the finished product has excellent surface quality, consistent geometry, and reliable mechanical performance.

Features and Advantages

• High Strength and Hardness: Ideal for applications requiring resistance to bending and torsion.
• Superior Dimensional Accuracy: Tight tolerance across flats ensures precision assembly.
• Excellent Machinability: Easy to cut, drill, and machine into custom shapes.
• Durable and Wear-Resistant: Maintains strength under heavy mechanical loads.
• Good Weldability: Compatible with standard welding techniques.
• Corrosion and Oxidation Resistance: Enhanced through coating or plating options.
• Stable Hexagonal Geometry: Prevents slippage and ensures secure mechanical connections.

Applications:

• The S50 hexagonal pipe is widely used in sectors that demand precision, strength, and reliable torque resistance. Common applications include:
• Mechanical Parts: Shafts, couplings, bushings, and connectors.
• Automotive Components: Steering rods, drive shafts, bolts, and axles.
• Hydraulic and Pneumatic Systems: Tubes and fittings for high-pressure transmission.
• Industrial Machinery: Frames, tooling, and support structures.
• Construction and Architecture: Decorative frames, support columns, and structural elements.
• Fasteners and Tools: Hexagonal nuts, bolts, and wrench components.

The S50 hexagonal pipe’s six-sided geometry ensures easy assembly and high torsional stability, making it perfect for applications where rotational and mechanical precision are critical.

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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.

Wuxi Hengxin Zhicheng International Trade Co., Ltd. is a professional supplier and stockist specializing in seamless steel pipes and precision steel tubes. With years of experience in the steel industry, we are committed to providing high-quality steel pipe products and customized solutions to meet the diverse needs of customers in machinery manufacturing, hydraulic systems, petrochemical, boiler, construction, and energy industries.
We maintain a long-term and stable inventory of various steel pipe products and have established strategic partnerships with well-known domestic steel mills. Relying on advanced production technology, strict quality control, and excellent logistics services, we ensure timely delivery and consistent quality for every order.
Main Products
Seamless Steel Pipe
Precision Steel Tube
Honed Tube
Hydraulic Cylinder Tube
Special-shaped Tube
High-pressure Boiler Tube
Medium & Low-pressure Boiler Tube
Fertilizer Tube
Petroleum Cracking Tube
Fluid Pipe
Structural Pipe
All products are manufactured in accordance with international standards such as ASTM, DIN, EN, GB, and JIS, ensuring excellent performance, dimensional accuracy, and long service life.