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Payment Type: L/C,T/T
Transportation: Ocean,Land,Air
Model No.: ASTM A790/ASME SA790 UNS S31803
Brand: YUHONG
Standard: Astm
Section Shape: Round
Place Of Origin: China
Standard: ASTM A790/ASME SA790
Material Grade: UNS S31803
NDT: ET, UT, HT , PT
Surface: Pickled And Annealed, Polished, Bright Annealed
ASTM A790 UNS S31803 Duplex Stainless Steel Pipe
ASTM A790 UNS S31803 is a specification in duplex steel material. The material is an alloy of steel containing chromium and molybdenum. The addition of these materials makes the pipes stronger and more corrosion resistant. The duplex grades are divided into three groups as duplex, lean and super duplex. The super duplex is used for specific applications that operate under elevated temperatures. The Duplex UNS S31803 Pipes also possesses an elevated strength due to the production nature. The material could be hot rolled and welded or be cold drawn. The cold drawn pipes are seamless and have less absolute roughness which makes them precise in dimensions. The ease of welding in the ASTM A790 UNS S31803 Tube makes it a choice for high pressure applications that will require extensive welding at installation.
YUHONG GROUP specializes in ASTM A790 UNS S31803 Duplex Stainless Steel Seamless Pipe with more than 30 years’ experience in Manufacturing it. we offer high quality, lower cost but the best service.
Equivalent Grade:
Grade UNS Old British Euronorm Swedish SS Japanese JIS BS En No Name 2205 S31803 318S13 - 1.4462 X2CrNiMoN22-5-3 2377 SUS 329J3L
No
Features:
High resistance to chloride stress corrosion cracking
Resistance to chloride pitting and crevice corrosion
Good general corrosion resistance
Good sulfide stress corrosion resistance
High Strength
Good weldability and workability
Physical Properties:
| Grade | Density | Elastic | Mean Co-eff of Thermal | Thermal | Specific | Electrical | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| UNS S31803 | 782 | 190 | 13.7 | 14.2 | – | 19 | – | 418 | 850 |
Chemical composition：
| UNS S31803 | Elements | Cr | C | Mo | N | Ni | P | S | Si | Mn |
| Min | 21.0 | 0.03 | 2.5 | 0.08 | 4.5 | - | - | - | - | |
| Max | 23.0 | - | 3.5 | 0.20 | 6.5 | 0.03 | 0.02 | 1.0 | 2.0 |
Mechanical Properties：
| Grade | Tensile Strength | Yield Strength | Elongation | Hardness | |
| Rockwell C (HR C) | Brinell (HB) | ||||
| UNS S31803 | 621 | 448 | 25 | 31 max | 293 max |
Applications:
Chemical Processing, Transport and Storage
Oil and Gas Exploration and Offshore Rigs
Mil and Gas Refining
Marine Environments
Pollution Control Equipment
Pulp & Paper Manufacturing
Chemical Process Plant
| Selling Units | : | Kilogram |
|---|---|---|
| Package Type | : | Ply-Wooden Case /Iron Case/ Bundle with Plastic Cap/Woven Case |
| Picture Example | : |
|
Packaging: Ply-Wooden Case /Iron Case/ Bundle with Plastic Cap/Woven Case
Productivity: 1000 Tons Per Month
Transportation: Ocean,Land,Air
Place of Origin: China
Supply Ability: According to Customers' Request
Certificate: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015
HS Code: 7304419000
Payment Type: L/C,T/T
Incoterm: FOB,CFR,CIF,EXW
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.