Conveying seamless pipes are steel pipes formed by punching through round steel, with no welds on the surface. According to the production method, seamless pipes are divided into hot-rolled seamless pipes, cold-rolled seamless pipes, cold-drawn seamless pipes, and hot-expanded seamless pipes. Seamless pipes are classified into two types based on their cross-sectional shape: circular and special-shaped.

S355JR Conveyor pipe is a high-strength carbon steel pipe widely used in material handling, mechanical structures, and industrial conveying systems. It belongs to the EN 10025-2 standard, which specifies non-alloy structural steels with excellent weldability, formability, and impact resistance. With its balanced mechanical properties and reliable performance, S355JR pipe is a preferred choice in industries such as mining, cement, power generation, and bulk material transportation.

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Chemical Composition and Mechanical Properties

S355JR seamless pipe is designed to provide both strength and ductility. The typical chemical composition includes:

Carbon (C): ≤ 0.24%

Manganese (Mn): ≤ 1.60%

Silicon (Si): ≤ 0.55%

Phosphorus (P): ≤ 0.035%

Sulfur (S): ≤ 0.035%

These controlled alloying elements ensure good mechanical strength and excellent impact resistance at low temperatures.

Mechanical properties:

Yield strength: ≥ 355 MPa

Tensile strength: 470–630 MPa

Elongation: ≥ 22%

Impact energy (Charpy V-notch, 20°C): ≥ 27 J

These characteristics make S355JR Conveyor Pipe suitable for medium to heavy-duty conveying systems that demand both rigidity and resilience.

Advantages of S355JR Conveyor Pipe

High Load Capacity: The high yield strength allows it to support heavy conveyor loads and long spans without deformation.

Excellent Weldability: The low carbon content enables easy welding using standard methods such as MIG, TIG, and arc welding.

Superior Durability: Its strong resistance to wear, impact, and vibration ensures long service life in demanding environments.

Versatility: Can be used in straight, bent, or spiral conveyor systems for transporting bulk materials like ores, coal, cement, or grains.

Cost-Effective: Provides an optimal balance between performance and price compared to alloyed steel pipes.

Applications:

Applications in Conveyor Systems

S355JR steel pipes are extensively applied in:

Belt conveyor support structures

Material transport pipelines in power plants and cement plants

Roller conveyor systems

Mining and quarry equipment frames

Mechanical and structural supports for industrial machinery

Their robust design ensures reliable operation even under heavy mechanical loads, temperature fluctuations, and outdoor conditions.

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.