Duplex & Super Duplex Stainless Steel SS Hydraulic Control Line Tubing ASTM A789

Tiptop offers a variety of duplex stainless steel and super duplex stainless steel welded pipes and seamless pipes, depending on the characteristics that the pipe needs to exhibit. Other materials and sizes can also be provided according to customer requirements.

Duplex stainless steel refers to a stainless steel with ferrite and austenite each accounting for about 50%. Generally, the content of less phases needs to reach at least 30%, which has a higher yield strength than austenitic stainless steel. Super duplex stainless steel refers to a duplex steel with PREN>40, containing 25% Cr, high molybdenum (>3.5%), and high nitrogen (0.22% to 0.30%). ASTM-A789, Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe for General Purposes. This specification covers various grades of duplex stainless steel.

Specifications

FAQ

Q1: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.

Q2: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity.

Q3. Can you provide customize service?
A: Yes.Pipes can be customized as per the customers' request.

Q4. How to ensure the quality?
A:Mill Test Certificate is supplied with shipment.
If needed, a Third Party Inspection is acceptable.

With the leading direction of producing High pressure extra long stainless steel control line tube(stainless steel coiled tubes), TIPTOP has become a high-tech industrial company integrating domestic research and development, production and sales. The company successfully developed a series of stainless steel testing cables in 2000. In recent years, the company has been committed to the research and development of duplex steel and nickel alloy control lines, and has been widely approved in the international market.

The company covers an area of 20,000 square meters and a building area of 12,000 square meters. The company has several stainless steel tube production lines, tube making units, tube drawing units, well-type electric furnaces, online vacuum light furnaces and other production equipment. The company also has a quality inspection center that meets the national stainless steel tube quality inspection requirements. The quality inspection center has a 300Mpa hydraulic test machine, tensile test bench, Vickers hardness tester, 500°C temperature resistance test furnace, eddy current flaw detector and a series of stainless steel products. Testing and inspection equipment to ensure the reliability and stability of the chemical and physical properties of stainless steel products.　

The company annually produces more than 3,000 tons of stainless steel control lines and other products, sales marked covers both domestic and overseas, for domestic, we are network-enterprise company of CNOOC, Petro China and Sinopec, as for international,it has been widely used in Middle East, Southeast Asia, South America, Australia and so on.　

On the premise of improving the quality of its own brand products, the company has continuously increased the research and development of new products, and has cooperated and actively invested with many domestic universities and scientific research institutions. In recent years, the company has passed the certifications of CCS, GL, DNV and other classification societies.

With our support,you will have:

1. Technical data, technical guidance and training for free
2. Professional engineer to the site for tracking service
3. "just-in-time supply"(that is, supply at any time according to the actual demand of customer), in this way customers achieve zero inventory, maximize profits.
4. Most favorable offer,we take "taking small profits" as the principle.
5. 100% qualified product,Our company will strictly follow the requirements of relevant technical standards , grasp various links of production, and ensure product performance .
6. sufficient after sales services.

We are looking forward to developing business with friends from home and abroad on the basis of equality and mutual benefits!welcoming your enquiries!