| After-sales Service: | Supplied |
|---|---|
| Warranty: | 30 Years |
| Type: | Seamless |
| Technique: | Cold Drawn |
| Material: | Stainless Steel |
| Surface Treatment: | Polished |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier ASTM A789/A790 Duplex Steel Boiler Tube S31803/S32205/S31803/S32750/S32760/S31254 Stainless Steel Pipe Tuberias
UNS 31803 (F51), UNS 32205 (F60) Alloy 2205, UNS S32550 (F61), UNS S 32750 (F53), Alloy 2507 and UNS 32760 (F55)
Standards: ASTM/ASME A789/SA789, A790/SA790,A450,A530
Material: UNS S31803(Cr22Ni5Mo3/1.4462)/2205,UNS S32750(1.4410),UNS S31500(Cr18NiMo3Si2),
UNS32760(1.4501)
Chemical Composition
| Grade |
C max |
Si max |
Mn max |
P max |
S max |
Cr | Ni | Mo | N |
| UNS S32750 | 0.030 | 0.8 | 1.2 | 0.030 | 0.015 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 |
| UNS S31803 | 0.030 | 1.0 | 2.0 | 0.020 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| UNS S31500 | 0.030 | 1.0 | 1.2-2.0 | 0.030 | 0.030 | 18.0-19.0 | 4.5-5.5 | 2.5-3.5 | 0.05-0.10 |
Physical Properties
| Grade | Y.S.MPa min | T.S.Mpa min | Elongation % | Hardness HRC |
| UNS S32750 | 550 | 800 | 15 | 20 |
| UNS S31803 | 450 | 620 | 25 | 20 |
| UNS S31500 | 440 | 630 | 30 | 20 |
Duplex Stainless Steel Pipe Application:
Chemical processing, Transport and Storage.
Oil and gas exploration and offshore rigs.
Oil and gas refining.
Marine environments.
Pollution control equipment.
Pulp and paper manufacturing
Chemical process Plant
ASTM A790 S32750 SMLS Super Duplex Steel Pipes Tuberias
ASTM A790/ ASME SA790 This specification covers seamless and straight-seam welded ferritic/austenitic steel pipe intended for general corrosive service, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.
S32750 has excellent resistance to corrosion, especially in harsh environments such as seawater and chemical processing industries. This makes it a suitable choice for applications in oil and gas, desalination plants, and offshore drilling.This material has a higher strength compared to conventional stainless steels. This allows for the use of thinner tubes, reducing weight and material costs while maintaining structural integrity.
Besides,S32750 offers good weldability, allowing for easy fabrication and installation of tubes without compromising their performance. This makes it a viable option for various construction projects.The duplex structure of S32750 provides a unique combination of high strength and excellent corrosion resistance. This makes A790 S32750 tubes suitable for use in aggressive environments where both properties are required.
Despite its superior properties, S32750 is a cost-effective solution compared to other corrosion-resistant alloys. The reduced maintenance and long-term durability of A790 S32750 tubes provide cost savings over the product's lifespan.
In summary, A790 S32750 tubes offer numerous advantages due to the material's corrosion resistance, high strength, weldability, and cost-effectiveness. These properties make them an ideal choice for applications that require durability and reliability in challenging environments.
| UNS | Heat Treating Temperature | Quench |
| S32750 | 1880-2060°F [1025-1125°C] |
Rapid cooling in air or water
|
| C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu |
| 0.03 | 1.2 | 0.035 | 0.02 | 0.8 | 6-8 | 24-26 | 3-5 | 0.24-0.32 | 0.5 |
| Grade | Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation (%) |
| S32750 | 550 | 800 | 15 min |
| HBW | HRC |
| 300 max | 32max |
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