In the field of infrastructure construction and heavy industry, spiral welded steel pipes always play an important role thanks to their outstanding durability, high pressure resistance and flexibility in construction. To meet the increasing demand of the market, E.NHAT Industrial Joint Stock Company has boldly invested in spiral welded steel pipe production line No. 4 and a modern closed shot blasting line, located at Lot L1, Saigon – Dung Quat Industrial Zone, Binh Thanh, Binh Son, Quang Ngai. This is a testament to the determination to improve quality, optimize costs and commit to accompany key national projects.

Why are spiral welded steel pipes preferred in large projects?

Spiral Submerged Arc Welded Steel Pipe (SSAW) is a type of pipe manufactured by rolling steel plates into a spiral shape and then continuously welding them in a spiral. With this special structure, spiral welded steel pipes possess many outstanding advantages:

✅ High pressure resistance – Suitable for water, oil, gas pipelines, and load-bearing foundation piles.

✅ Diverse sizes, large diameters – Easily meet projects requiring large pipes.

✅ Saving materials – Due to the spiral rolling method, material loss is reduced compared to straight welded pipes.

✅ Reasonable price – Helps investors optimize their budget while still ensuring quality.

Thanks to the above advantages, spiral welded steel pipes are increasingly dominating the market in traffic infrastructure projects, water supply and drainage works, irrigation, and energy industry.

Spiral welded steel pipe production line No. 4 – Modern technology, leading quality

At E.NHAT, in parallel with the production lines at factories in Hanoi and Hung Yen, the spiral welded steel pipe production line No. 4 in Quang Ngai has also been invested synchronously, applying high automation technology, helping the products always meet the strictest technical standards of water supply works, steel piles, industrial structures and infrastructure.

This is also a great advantage of E.NHAT Group compared to other manufacturers in Vietnam – when ready with resources to serve projects from the North to the Central and South of Vietnam, saving maximum transportation costs and product acceptance time.

The spiral welded steel pipe production line No. 4 is located at the Production Workshop of E.Nhat Industrial Joint Stock Company – located at Lot L1, Saigon – Dung Quat Industrial Zone, Binh Thanh District, Binh Son, Quang Ngai. With the following outstanding technical parameters:

Production pipe diameter: from 400 mm to 4,020 mm
Steel thickness: maximum 30 mm
Pipe length: according to customer requirements
Capacity: thousands of tons of products/year
Production standards: API 5L, ASTM A252, TCVN …

The production line is integrated with an automatic ultrasonic testing system and welding defect inspection equipment to ensure 100% quality before leaving the factory. All E.NHAT spiral welded steel pipe products undergo a strict control process from input materials, production, to surface finishing.

Closed Shot Blasting Line – Optimal Surface Finishing Solution

In parallel with the spiral steel pipe production line No. 4, E.NHAT also invested in a modern closed shot blasting line in Dung Quat – Quang Ngai, contributing to:

Cleaning the surface of spiral welded steel pipes before painting or plating
Increasing the adhesion of the protective coating
Prolonging the product’s life in harsh environmental conditions

The shot blasting is sprayed at high speed thanks to the centrifugal impeller (blast wheels), colliding with the surface of the part, removing rust, welding slag, creating roughness for painting or plating. The closed shot blasting system does not emit dust, ensuring environmental standards and safety for workers.

Breakthrough with Lincoln PowerWave AC/DC 1000SD welding machine – Raising the bar for quality

To improve product quality and labor productivity, E.NHAT continues to invest in Lincoln PowerWave AC/DC 1000SD welding machines – advanced welding technology from the United States, located in all E.NHAT factories, with outstanding features:

Stable welding current, minimizing weld defects.
Multi-arc welding support: can configure multiple machines at the same time to increase productivity
Environmental stability: meets IP23 protection standards, withstands harsh outdoor conditions
Integrated with intelligent welding current adjustment technology, suitable for many types of steel and strict technical requirements
Energy efficiency: PF power factor reaches 95%, contributing to energy saving, optimizing welding material consumption, improving production efficiency
Regarded as very suitable for welding applications in heavy industrial environments: oil and gas projects, shipbuilding, steel structures, power plants, pressure pipelines

Thanks to this advanced welding system, E.NHAT’s spiral welded steel pipe products always achieve the highest quality, ensuring reliability for key projects such as water supply projects, oil and gas industry, and urban infrastructure. Customers can be completely assured when using E.NHAT’s services and products.

Outstanding applications of E.NHAT spiral welded steel pipes

Spiral welded steel pipes manufactured at E.NHAT are trusted in many key projects:
🌊 Clean water and raw water pipelines for urban water supply plants
🛢 Oil and gas pipelines
🏗 Steel piles for wharf foundations and marine projects
🚧 Steel structures for industrial projects

With a modern production system, E.NHAT’s products meet all strict requirements of customers regarding size, durability and lifespan of spiral welded pipe products.

Why choose E.NHAT spiral welded steel pipe for your project?

🌟 Leading quality – Manufactured on modern production lines, strict quality control.

🌟 Reasonable price – Optimizing costs for investors while still ensuring the highest standards.

🌟 Full service – From design consultation, production to on-site delivery, technical support during installation.

🌟 Brand reputation – E.NHAT has been a partner of many large projects across the country for many years.

Kindly visit the Spiral Welded Steel Pipe production line at E.NHAT Group

We respectfully invite customers and partners to visit the production line and machinery at E.NHAT

Come and experience the modern production process, professional team and high-quality spiral welded steel pipe products of E.NHAT!

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Modern spiral welded steel pipe production line at E.NHAT – Optimal solution for large projects