Shandong Lanchuan Iron and Steel Co., LTD
Shandong Lanchuan Iron and Steel Co., LTD
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ASTM A789 duplex stainless steel pipe is a high-performance piping material widely used in various industrial fields. It was formulated by the American Society for Testing and Materials (ASTM) and defines the technical requirements for stainless steel seamless and welded steel pipes to ensure that these pipes can still show excellent corrosion resistance and mechanical properties in extreme environments.
Material properties
The ASTM A789 standard covers a range of stainless steel alloys, mainly including austenitic, duplex stainless steel and super austenitic stainless steel. The selection of these materials is based on their unique chemical composition and microstructure, and they can maintain excellent stability under harsh working conditions such as high temperature, high pressure, and highly corrosive media.
Austenitic stainless steel: Known for its excellent corrosion resistance, good plasticity and toughness, it is often used in situations where high corrosion resistance and good processing performance are required.
Duplex stainless steel: Combining the advantages of austenite and ferrite, it has high strength, good resistance to pitting and stress corrosion cracking, and is suitable for marine engineering, chemical equipment and other fields.
Super austenitic stainless steel: By adding more nickel, molybdenum and other elements, the corrosion resistance is further improved, especially suitable for environments containing chloride ions.
Application areas
ASTM A789 duplex stainless steel pipes are widely used in the following fields due to their excellent performance:
Marine engineering: used to manufacture offshore platforms, ships, etc., and can resist seawater corrosion.
Chemical equipment: used to transport corrosive media in chemical plants.
Oil and gas: in oil and gas extraction and transportation, it can withstand high temperature and high pressure environment.
Power industry: used for cooling systems and heat exchangers in power plants.
Food processing: in the food processing industry, it is used to transport and store food-grade media.
| Wall Thickness | 0.5mm-60mm |
| Outer Diameter | 6mm-800mm |
| Length | 2m-12m |
| Shape | Round.square.Rectangle |
| Technique | Cold Rolled Hot Rolled |
| Material | 304H,316H,309/S,310/S, 317/L,321/H,347/H,904L |
| Package | wooden boxes package,pvc package and other package , or as customer's request |
| Delivery times | 7-14 working days after received payment |
| Surface | Pickled ,Sand Blast |
| Application | Industry, Structure, Construction |
Q1.Can I have a sample order for stainless steel products?
A:Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q2.What about the lead time?
A:Sample takes 3-5 days, production time takes 7-15days for order quantity more than 28tons.
Q3.Do you have any MOQ limit for stainless steel products order?
A:Low MOQ, 1pc for sample checking
Q4.How do you ship and how long does it take to arrive?
A:For samples, we usually ship by DHL, UPS, FedEx or TNT, It usually takes 3-5 days to arrive. Airline and sea shipping are also optional. For mass products, ship freight is preferred.
Q5.Is it OK to print my logo on the product?
A:Yes.OEM and ODM can be provided for us.
Q6:Do you provide guarantee for the product?
A:Yes, we provide 5-10 years warranty for our products.
Q7:How to deal with the failure?
A: First of all, our products are produced under a strict quality control system, and the defective rate will be reduced by 0.2%.