| Customization: | Available |
|---|---|
| Type: | Stainless Steel Pipes |
| Standard: | ASTM, AISI, GB, JIS, EN |
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| Stainless Steel S32205/S31803 Tube Standards | SA 789 alloy 2205, astm a790 duplex 2205, a790 gr 2205ASTM A213, ASTM A249, ASTM A269, ASME SA213, ASME SA249, ASME SA269, EN 10216-5 TC1 / TC2, PED 97/23/EC, AD 2000, NACE MR0175/ISO 15156 |
| S32205/S31803 SEAMLESS Stainless Steel Aerospace Tubing | AMS 5557, AMS 5897 (Canceled & non-current specs include MIL-T-8808, MIL-T-8973) |
| S32205/S31803 WELDED & DRAWN Stainless Steel Aerospace Tubing | AMS 5556, AMS 5575 (Canceled & non-current specs include MIL-T-6737, MIL-T-8606, MIL-T-8808) |
| Stainless Steel S32205/S31803 Seamless Tube Size | 3.35 mm OD To 101.6 mm OD |
| Stainless Steel S32205/S31803 Welded Tube Size | 6.35 mm OD To 152 mm OD |
| Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Stainless Steel S32205/S31803 tubing wall thickness | 0.020″ -0.220″, (special wall thicknesses available) |
| SS S32205/S31803 tube Length | Single Random, Double Random, Standard & Cut length |
| S32205/S31803 Stainless Steel Tube Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Stainless Steel S32205/S31803 tube Form | Round, Coil, Square, Rectangular, Boiler, Hydraulic, Straight or 'U' bent Tubes, Hollow, LSAW Tubes Etc. |
| Stainless Steel S32205/S31803 Tube Type | Seamless, ERW, EFW, Welded, Fabricated |
| Electropolished | (EP) Electropolished for Ultra High Purity Systems |
| Non-Electropolished | (BA) Bright Annealed or (AP) Annealed & Pickled for High-Purity, (CFOS) Cleaned for Oxygen Grade Service or Corrosive Systems |
| I.D. Surface Finish Options | 5, 7 & 10 µin. Ra |
| JIS | 8A to 250A |
| Tolerances | In accordance with: ASTM: A269 & A632, JIS: G 3459 |
| S32205/S31803 stainless steel tubing End | Plain End, Beveled End, Treaded, Ends are suitable for orbital welding |
| Marking | All S32205/S31803 Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
| S32205/S31803 stainless steel tubing Application | Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger |
| Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Specialize in | Stainless Steel S32205/S31803 Capillary Tube & Other Odd Size |
| Stainless Steel S32205/S31803 Heat Exchanger & Condenser Tubes | |
| Stainless Steel S32205/S31803 Hydraulic tubing with OD up to 50.8 mm (2.0 in.) are delivered in bright annealed condition | |
| Stainless Steel S32205/S31803 hydraulic tube with OD larger than 50.8 mm are supplied in the annealed and pickled condition, Or in polished condition | |
| Marking & Traceability | Each Stainless Steel S32205/S31803 Tubing is traceable to its producing mill and heat by an identification number etched within 24″ (610mm) of one end. |
| S32205/S31803 stainless steel tubing Test Certificate | Manufacturer Test Certificate according to EN 10204 3.1 B |
| Laboratory Test Certificate from Govt. Approved Lab. | |
| Under Third Party Inspection | |
| S32205/S31803 stainless steel tubing Testing & Inspection | Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing |
CORROSION RESISTANCE Alloy 2205 exhibits exceptional resistance to chloride-induced pitting and stress corrosion cracking, enhancing its durability.
ELEVATED TEMPERATURE RESISTANCE The ASME Boiler and Pressure Vessel Code specifies a maximum temperature limit of 600°F (315°C). Prolonged exposure to temperatures above this can result in embrittlement.
MECHANICAL PROPERTIES Alloy 2205 boasts more than twice the strength of conventional austenitic stainless steels when annealed. In the cold-worked condition, it offers an impressive yield strength exceeding 160 ksi, maintaining good toughness even at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 can be effectively cold-formed, although it has a high work-hardening rate, necessitating intermediate anneals. Subsequent annealing is recommended after both hot and cold forming to achieve optimal stress corrosion resistance.
Our forming capabilities are second to none, featuring state-of-the-art extrusion and cold working assets for tube and pipe manufacturing. We boast one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
As a preeminent vertically integrated manufacturer, Daxun offers a holistic one-stop-shop solution. From comprehensive project management to specialized machining tasks, our extensive capabilities encompass straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and a suite of specialized services.
With an array of vertical and horizontal presses ranging from 12,000 to a staggering 35,000 tons, Daxun boasts the industry's most extensive pipe extrusion capabilities. This enables us to manufacture pipes with the longest lengths and largest diameters available on the market.
Premier Suppliers of ASTM A789 UNS S32205 Duplex Stainless Steel Seamless and Welded Pipes Alloy 2205 is a superior duplex stainless steel enhanced with nitrogen to boost corrosion resistance, especially in welding applications. In its annealed state, Alloy 2205 demonstrates more than double the strength of regular austenitic stainless steels and offers superior corrosion resistance compared to Alloy 316 under numerous conditions. It stands as the most frequently utilized duplex stainless steel. Known also as UNS N31803 and 22-Chromium, Duplex 2205 boasts an impressive composition of 22% chromium, 3% molybdenum, and 5-6% nickel alloy. This alloy not only exhibits excellent fatigue strength but also resists stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in harsh environments.
At Daxun Alloys, we craft stainless steel alloy 2205 tubing in multiple forms and sizes, including seamless, welded, precision, and capillary tubing. Each of our alloy 2205 products adheres to stringent industrial standards set by ASTM, ASME, ISO, UNS, and EN.
Dah Hsun Alloys: Your Trusted Supplier of Duplex 2205 Stainless Steel Pipes in China. As an esteemed stockist, our extensive inventory includes Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, Square and Rectangular Pipes, and Cold Drawn Stainless Steel Pipes. Since our establishment in 1999, we have been dedicated to manufacturing top-quality Duplex 2205 Seamless and Welded Pipes. Accredited with ISO 9001, we proudly export ASTM A789 UNS S31803 Seamless Pipes across China. With over 25,000 tonnes of stock in various shapes, sizes, and coatings, we are one of China's largest ASTM A789 UNS S32205 pipe stockists. Initially launched as a 2205 Duplex Stainless Steel Pipe Trader, we have grown into a leading manufacturer and distributor, extending our reach to the United States and Europe. Today, we are the preeminent stockholder of Duplex S 2205 Seamless Pipes in both India and China. We uniquely offer Duplex 2205 Pipes in all specifications, including SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS Duplex 2205 pipes. Discover the most competitive prices for 2205 Duplex Stainless Steel Pipes in China.
Chemical Composition of 2205/S32205/S31803 Stainless Steel Pipe
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| 2205 | 0.03 | 2 | 1 | 0.03 | 0.02 | min: 21.0 | min: 2.5 | min: 4.5 | min: 0.08 |
| (S31803) | max | max | max | max | max | max: 23.0 | max: 3.5 | max: 6.5 | max: 0.20 |
| 2205 | 0.03 | 2 | 1 | 0.03 | 0.02 | min: 22.0 | min: 3.0 | min: 4.5 | min: 0.14 |
| (S32205) | max | max | max | max | max | max: 23.0 | max: 3.5 | max: 6.5 | max: 0.20 |
| Grade | Tensile Strength | Yield Strength | Elongation | Hardness | |
| (MPa) min | 0.2% Proof | (% in 50mm) min | |||
| (MPa) min | Rockwell C (HR C) | Brinell (HB) | |||
| UNS S31803 / 2205 | 621 | 448 | 25 | 31 max | 293 max |
| UNS S32205 / 2205 | 621 | 448 | 25 | 31 max | 293 max |
| Grade 2205 | Density | Elastic | Mean Co-eff of Thermal | Thermal | Specific | Electrical | |||
| (kg/m3) | Modulus(GPa) | Expansion (μm/m/°C) | Conductivity (W/m.K) | Heat | Resistivity | ||||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | 0-100°C( J/kg.K) | (nΩ.m) | |||
| UNS S32205 / UNS S31803 | 782 | 190 | 13.7 | 14.2 | - | 19 | - | 418 | 850 |
Duplex 2205 stainless steel pipe is a remarkable duplex ferritic-austenitic stainless steel, masterfully crafted with 22% chromium, 3% molybdenum, and 5-6% nickel. Celebrated as the most prevalent duplex stainless steel grade, it boasts a yield strength that is double that of typical austenitic grades. Furthermore, this outstanding material exhibits excellent fatigue strength, along with extraordinary resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion even in the harshest conditions.
Leading manufacturers advise a maximum hot forming temperature range of 2010 to 2100°F (1100 to 1150°C). If the workpiece isn't homogeneous, cooler edges may lead to cracking.
The Duplex 2205 Stainless Steel Tube showcases exceptional formability across a diverse range of manufacturing processes. However, its high strength can pose challenges. Even with robust equipment, the increased springback due to the high strength of this grade must be carefully managed.
Duplex 2205 poses a slightly greater machining challenge compared to 300 series austenitic stainless steels. Increased cutting forces are required, leading to quicker tool wear. To optimize machining, consider the following guidelines: A) Utilize a powerful, rigid machine with robust tool and workpiece mounts; B) Maintain short tool extensions to reduce vibration; C) Limit the tool nose radius to ensure a sharp edge while maintaining adequate carbide strength; D) Design the machining sequence to ensure the depth of cut consistently penetrates below the work-hardened layer from previous operations.
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