ASTM A789 Seamless Stainless Steel Tube: Super Duplex Stainless Steel Tube For Gas Transportation
Material:
Super Duplex Stainless Steel
Specification:
- ASTM A789
- Seamless Stainless Steel Tube
Key Features:
- High Corrosion Resistance: Super duplex stainless steel exhibits excellent resistance to corrosion, making it a suitable choice for gas transportation applications.
- Superior Strength: With its higher yield strength and improved ductility, this stainless steel tube provides excellent structural integrity.
- Enhanced Toughness: The super duplex stainless steel offers superior toughness and durability, making it ideal for demanding gas transportation operations.
- Good Weldability: ASTM A789 seamless stainless steel tube allows for easy welding, ensuring seamless connections and high-quality joints.
- Cost-Effective Solution: Super duplex stainless steel provides a cost-effective option due to its long-lasting durability and low maintenance requirements.
Chemical Composition:
| Element | Percentage Range |
| Chromium (Cr) | 24.0%-26.0% |
| Nickel (Ni) | 6.0%-8.0% |
| Molybdenum (Mo) | 3.0%-5.0% |
| Nitrogen (N) | 0.20%-0.30% |
| Copper (Cu) | 0.50% max |
| Tungsten (W) | 0.50% max |
| Manganese (Mn) | 2.0% max |
| Silicon (Si) | 1.00% max |
| Phosphorus (P) | 0.030% max |
| Sulfur (S) | 0.010% max |
Mechanical Properties:
| Property | Value |
| Tensile Strength | 760 MPa (110,200 psi) min |
| Yield Strength | 550 MPa (79,770 psi) min |
| Elongation | 25% min |
| Hardness | 270 HB max |
Steel Grade:
Super Duplex Stainless Steel - ASTM A789
Application:
The ASTM A789 seamless stainless steel tube, made from super duplex stainless steel, is well-suited for gas transportation. It finds its application in various industrial sectors, including:
- Oil and gas industry
- Petrochemical plants
- Refineries
- Desalination plants
- Chemical processing plants
- Power generation
Possible Alternative Grades:
- ASTM A790: Similar to ASTM A789, providing another option for seamless stainless steel tubes in gas transportation with slight variations in specification.
- ASTM A928: Offers welded stainless steel tube alternatives for gas transportation applications.
- ASTM A789 (UNS S31803): A variation of super duplex stainless steel that provides similar properties but with a slightly different chemical composition.
Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
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