Q235B DN400 Large Diameter Spiral Welded Pipe

DN400 spiral steel pipe has excellent performance. First of all, its strength is high and it can withstand great pressure and weight. Secondly, excellent toughness, able to withstand great pressure while maintaining their integrity. In addition, the DN400 spiral steel pipe also has excellent corrosion resistance and can maintain long-term stability in harsh environments.
DN400 spiral steel pipe has a wide range of applications. In shipbuilding, it is used to make the frames and hulls of ships, providing robust support and protection. In the field of pressure vessels, DN400 spiral steel pipe becomes the ideal material for the manufacture of pressure vessels. In the field of machinery manufacturing, DN400 spiral steel pipe is used to manufacture various mechanical parts, such as bearings, supports, etc., to provide a strong guarantee for the normal operation of machinery.
The technical parameters of the DN400 spiral steel pipe are also excellent. The wall thickness is usually more than 10 mm, the outer diameter can reach 426 mm, and the length can be customized according to actual needs. These technical parameters make the DN400 spiral steel pipe perform well in various application scenarios and meet the needs of different industries.

FAQ:

1. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

2. What services can we provide?
A. Pre-sale Service
* Sample can be offered with sample charge and courier fee by buyer's side.
* We have full stock,and can deliver within short time.Many styles for your choices.
* OEM and ODM order are accepted, Any kind of logo printing or design are available.
* Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you
* All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
* We have 15 year experience of design, manufacture and sell steel, we cherish every order from our honor.
B. After you choose
* We will count cheapest shipping cost and make invoice to you at once.
* Check quality again, then send out to you at 1-2 working day after your payment,
* Email you the tracking NO., and help to chase the parcels until it arrive you.
C. After-sale choose
* We are very glad that customer give us some suggestion for price and products.
* If any question,please contact with us freely by E-mail or Telephone.

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