| Standard: | ASTM A790， ASME SA790 | Grade: | Duplex Steel UNS S31803， S32750， S32205 |
|---|---|---|---|
| O.D.: | Seamless – 1/2′ NB TO 18′ NB， Welded / ERW- 1′ NB TO 16′ NB | W.T.: | SCH10 TO SCH160 |
| Length: | Single Random， Double Random & Cut Length | End: | Plain End， Beveled End |
| Type: | Seamless Or Welded | Packing: | Ply-wooden Case /Iron Case/ Bundle With Plastic Cap |
| Application: | Power Plant， Oil And Gas Refining， Marine Environments， Pollution Control Equipment | ||
| High Light: | Duplex Steel 2205， ASTM A790 Stainless Steel Welded Pipe， UNS S32205 Duplex Stainless Steel Pipes | ||
ASTM A790 UNS S32205 / Duplex Steel 2205 Seamless and Welded Pipe
Duplex 2205 stainless steel (both ferritic and austenitic) is used extensively in applications that require good corrosion resistance and strength. The UNS S31803 grade stainless steel has undergone a number of modifications resulting in UNS S32205， and was endorsed in the year 1996. This grade offers higher resistance to corrosion， but for much of the Duplex S31803 currently produced also complies with Duplex S32205
ASTM A790 UNS 32205 Duplex Stainless Steels
| ASTM A790 UNS S32205 Duplex Stainless Steels Specification | ASTM A789， ASTM A790， ASTM A928， ASME SA789， ASME SA790， ASME SA928 |
| ASTM A790 UNS S32205 Duplex Stainless Steels Grades | UNS S32205， UNS S31803， UNS S32750， UNS S32760， SAF® 2205， SAF® 2507 |
| ASTM A790 UNS S32205 Duplex Stainless Steels Type | Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish |
| ASTM A790 UNS S32205 Duplex Stainless Steels Outer Diameter Size | Seamless – 1/2" NB TO 18" NB Welded / ERW- 1" NB TO 16" NB EFW – 8" NB TO 110" NB |
| ASTM A790 UNS S32205 Duplex Stainless Steels Wall Thickness | Schedule 10 to Schedule 160 |
| ASTM A790 UNS S32205 Duplex Stainless Steels Length | Single Random Length， Double Random Length And Customize Size. |
| ASTM A790 UNS S32205 Duplex Stainless Steels Ends | Plain Ends / Beveled Ends |
| ASTM A790 UNS S32205 Duplex Stainless Steels Delivery Conditions | As Rolled， Formed， Stress Relieved， Annealed， Hardened， Tempered， Cold Draw， Bright Annealed |
| ASTM A790 UNS S32205 Duplex Stainless Steels Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM And ASME |
| ASTM A790 UNS S32205 Duplex Stainless Steels Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| ASTM A790 UNS S32205 Duplex Stainless Steels Packaging | Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| ASTM A790 UNS S32205 Duplex Stainless Steels Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1， 3.2 / Laboratory Test Certificate From Approved Lab. / Under Third Party Inspection Agency Like SGS， TUV， DNV， LLOYDS， ABS ETC |
Chemical Composition of ASTM A790 UNS S32205 Duplex Stainless Steels
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 2205 (UNS S31803) | Min Max | – 0.030 | – 2.00 | – 1.00 | – 0.030 | – 0.020 | 21.0 – 23.0 | 2.5 – 3.5 | 4.5 – 6.5 | 0.08 – 0.20 |
| 2205 (UNS S32205) | Min Max | – 0.030 | – 2.00 | – 1.00 | – 0.030 | – 0.020 | 22.0 – 23.0 | 3.0 – 3.5 | 4.5 – 6.5 | 0.14 – 0.20 |
Mechanical Composition of ASTM A790 UNS S32205 Duplex Stainless Steels
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell C (HR C) | Brinell (HB) | ||||
| UNS S32205 / 2205 | 621 | 448 | 25 | 31 max | 293 max |
Physical Properties of ASTM A790 UNS S32205 Duplex Stainless Steels
| Grade | Density (kg/cm3) | Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C ( J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| UNS S32205 / 2205 | 7.8 | 190 | 13.7 | 14.2 | – | 19 | – | 418 | 850 |
Equivalent Grade of duplex 2205
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
|---|---|---|---|---|---|---|---|
| BS | En | No | Name | ||||
| 2205 | S31803 / S32205 | 318S13 | – | 1.4462 | X2CrNiMoN22-5-3 | 2377 | SUS 329J3L |
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
