| 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 provides outstanding resistance to chloride-induced pitting and stress corrosion cracking.
ELEVATED TEMPERATURE RESISTANCE The ASME Boiler and Pressure Vessel Code sets a maximum temperature limit of 600°F (315°C). Prolonged exposure to temperatures above this threshold leads to embrittlement.
MECHANICAL PROPERTIES Alloy 2205 boasts more than twice the strength of conventional austenitic stainless steels in the annealed condition. It can also be supplied in the cold-worked condition with a yield strength exceeding 160 ksi, maintaining good toughness at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 can be cold-formed. However, it has a high work-hardening rate, so intermediate annealing may be necessary. Annealing is recommended after hot or cold forming to achieve optimal stress corrosion resistance.
Our forming capabilities are unparalleled, featuring advanced 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 vertically integrated powerhouse, Daxun delivers an unparalleled one-stop-shop solution. From complete project management to intricate machining tasks, our extensive capabilities encompass straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and a suite of specialized services.
Equipped with vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun boasts the industry's most advanced pipe extrusion capabilities, enabling us to produce the longest lengths and largest diameter pipes available.
Proud Suppliers of ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Alloy 2205: A Duplex Stainless Steel Enhanced with Nitrogen for Superior Corrosion Resistance, Especially in Welding Applications. In its annealed state, Alloy 2205 boasts more than double the strength of conventional austenitic stainless steels, while offering enhanced corrosion resistance compared to Alloy 316 under numerous conditions. As the most widely used duplex stainless steel, Alloy 2205-also known as UNS N31803 or 22-Chromium-features a robust composition of 22% chromium, 3% molybdenum, and 5-6% nickel. It excels in fatigue strength and is highly resistant to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in demanding environments.
At Daxun Alloys, we craft stainless steel alloy 2205 tubing in diverse forms and dimensions, including seamless, welded, precision, and capillary tubing. Our alloy 2205 products adhere to stringent industrial standards set by organizations like ASTM, ASME, ISO, UNS, and EN, ensuring top-notch quality and reliability.
Dah Hsun Alloys: Your Trusted Supplier for Duplex 2205 Stainless Steel Pipes. As a reputable stockist, we offer a comprehensive range of Duplex 2205 products, including Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, and Cold Drawn Stainless Steel Pipes. Since 1999, we have been manufacturing both seamless and welded Duplex 2205 pipes, backed by ISO 9001 certification. With a staggering stock of over 25,000 tonnes, we are one of the largest ASTM A789 UNS S32205 pipe stockists in China. Our extensive inventory includes various shapes, sizes, and coatings, making us the foremost Duplex 2205 Stainless Steel Pipe Manufacturer in China. Initially established as traders, we evolved into a leading stocking distributor, expanding our reach to the United States and Europe. Today, we stand as the preeminent stockholder of Duplex S 2205 Seamless Pipes in both India and China. We are proud to be China's exclusive provider of Duplex 2205 Pipes in all specifications, including SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS. Get the best prices for 2205 Duplex Stainless Steel Pipes in China at Daxun Alloys.
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 superior duplex ferritic-austenitic stainless steel, enriched with 22% chromium, 3% molybdenum, and 5-6% nickel. Renowned as the most widely used duplex stainless steel grade, it boasts a yield strength double that of standard austenitic grades. The material is celebrated for its impressive fatigue strength and outstanding resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion, even under severe conditions.
Most manufacturers recommend a maximum hot forming temperature ranging from 2010 to 2100°F (1100 to 1150°C). Proper compactness of the workpiece is crucial to prevent the edges from cooling faster than the bulk, which could result in cracking.
The Duplex 2205 Stainless Steel Tube by Jiangsu Daxun Alloy Co., Ltd. showcases excellent formability across various manufacturing processes. However, its high strength can present challenges. Even with powerful equipment, the increased springback due to the grade's high strength demands careful consideration.
Duplex 2205 demands more precision in machining compared to 300 series austenitic stainless steels. It requires higher cutting forces, leading to quicker tool wear. Consider these guidelines: A) Utilize a powerful, rigid machine with sturdy mounts for both tool and workpiece; B) Maintain short tool extensions to reduce vibration; C) Ensure the tool nose radius is minimal yet strong, preserving a sharp carbide edge; D) Sequence machining to keep the depth of cut below the work-hardened layer from prior operations.
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