A789 S31803 Condenser Tube
GNEE is the main supplier of A789 S31803 Duplex Stainless Steel Pipe, we provide high quality steel pipes to customers all over the world according to their needs.
A789 S31803 Stainless Steel Mechanical Pipe is made of nitrogen-pressurized duplex stainless steel, which is specially developed to resist common corrosion problems, so A789 S31803 Stainless Steel Condenser Tube can hold its own at high temperatures. It has the advantages of high strength, resistance to crevice corrosion and pitting corrosion. Suitable for many high chloride stress corrosion applications.
The most suitable heat treatment for A789 S31803 Annealed Tube is solution treatment (annealing) at a temperature between 1020-1100°C, followed by rapid cooling. It can be work hardened, but not hardened by thermal methods.
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Chemical composition for ASTM A789 UNS S31803 tubing, %
| C | ≤0.030 |
| Mn | ≤2.00 |
| P | ≤0.030 |
| S | ≤0.020 |
| Si | ≤1.00 |
| Ni | 4.5-6.5 |
| Cr | 21.0-23.0 |
| Mo | 2.5-3.5 |
| N | 0.08-0.20 |
A789 S31803 stainless steel pipe Mechanical Properties
| Tensile Strength,min. | Yield Strength,min. | Elongation,min. | Hardness Brinell, max |
|---|---|---|---|
| Mpa | Mpa | % | HB |
| 620 | 450 | 25 | 290 |
A789 S31803 Stainless Steel Seamless Tube
Why choose us
GNEE pipes and tubes have a wide range of applications in many market sectors, including the oil and gas, petrochemical and construction industries. And we can offer different properties for different purposes (e.g. corrosion protection).
Gnee Company Team
FAQ
1. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
2.What can you buy from us?
Stainless Steel pipe,Carbon Steel,Pipe Galvanized Steel,
3. Why should you buy from us not from other suppliers?
The company has sufficient inventory to ensure that customers receive the goods at the lowest price and the shortest delivery time
when purchasing. A professional logistics team and after-sales team will solve all delivery and receiving problems for you.
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