| 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 offers superior 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 can lead to embrittlement.
MECHANICAL PROPERTIES Alloy 2205 boasts over twice the strength of conventional austenitic stainless steels in the annealed state. It can also be supplied in a cold-worked condition with a yield strength surpassing 160 ksi, while maintaining excellent toughness at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 can be efficiently cold formed. However, due to its high work-hardening rate, intermediate anneals might be necessary. Post forming, annealing is recommended to achieve optimal stress corrosion resistance.
Our forming capabilities are exceptional, featuring cutting-edge extrusion and cold working assets for tube and pipe manufacturing. We boast one of the world's largest pilger mills and a sophisticated hydroforming process for precision fittings.
As a vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. provides a holistic one-stop-shop solution. Whether orchestrating an entire project or executing specific machining tasks, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and a variety of specialized services, ensuring every need is meticulously met.
Boasting vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun stands at the forefront of the industry with the most comprehensive pipe extrusion capabilities. This enables us to manufacture the longest lengths and largest diameter pipes available, setting new standards of excellence.
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Suppliers Alloy 2205 is a duplex stainless steel designed with nitrogen to enhance corrosion resistance, especially in welding. In its annealed state, Alloy 2205 boasts more than double the strength of typical austenitic stainless steels and surpasses Alloy 316 in corrosion resistance across many environments. As the most utilized duplex stainless steel, Alloy 2205, or UNS N31803 and 22-Chromium, features 22% chromium, 3% molybdenum, and 5-6% nickel. It excels in fatigue strength and offers remarkable resistance against stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in severe conditions.
At Daxun Alloys, we specialize in producing stainless steel alloy 2205 tubing in various forms and sizes, from seamless and welded to precision and capillary tubing. Our high-quality alloy 2205 meets a wide range of industrial standards, including ASTM, ASME, ISO, UNS, and EN, ensuring consistent performance and reliability.
Dah Hsun Alloys stands as a trusted supplier of Duplex 2205 Stainless Steel Pipes. As a prominent stockist, we maintain an extensive inventory of Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, Square and Rectangular Pipes, and Cold Drawn Stainless Steel Pipes at our facility in China. Since 1999, we have been manufacturing Duplex 2205 Seamless and Welded Pipes, achieving ISO 9001 certification along the way. Our comprehensive stock of over 25,000 tonnes of Duplex 2205 Stainless Steel Pipe in various shapes, sizes, and coatings positions us as one of the largest ASTM A789 UNS S32205 pipe stockists in China. Initially established as a 2205 Duplex Stainless Steel Pipe Trader, we evolved into a stocking distributor of Duplex SS 2205 Seamless Pipe. We are now recognized as the leading Duplex 2205 Duplex Steel Pipe Manufacturer in China. We also stock ASTM A790 UNS S31803 Duplex Steel Pipe from renowned manufacturers in the United States and Europe, solidifying our reputation as the primary stockholder of Duplex S 2205 Seamless Pipes in India and China. Uniquely, we offer Duplex 2205 Pipes in all specifications, including SCH 40 Stainless Steel Pipe, SCH 80 Duplex SS 2205 Seamless Pipe, SCH 160 Duplex 2205 Welded Pipe, SCH 10 Duplex SS 2205 Pipe, SCH XS Duplex 2205 Fabricated Pipe, and SCH XXS Duplex 2205 LSAW Pipe. Enjoy the best 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 from Jiangsu Daxun Alloy Co., Ltd. is a premium duplex ferritic-austenitic stainless steel, encompassing 22% chromium, 3% molybdenum, and 5-6% nickel. Celebrated as the most commonly utilized duplex stainless steel grade, it boasts a yield strength twice that of conventional austenitic grades. Duplex 2205 excels in fatigue strength and offers outstanding resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion even under the most severe conditions.
Most manufacturers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 and 1150°C). If the workpiece is not uniformly heated, the edges may cool faster, increasing the risk of cracking.
Duplex 2205 Stainless Steel Tube showcases exceptional formability across a broad spectrum of manufacturing processes. However, its high strength poses challenges. Even with adequately powerful equipment, the increased springback inherent to this grade must be meticulously accounted for.
Duplex 2205 presents slightly greater machining challenges compared to 300 series austenitic stainless steels. Higher cutting forces are requisite, thus accelerating tool wear. Key machining guidelines include: A) Employing a robust, rigid machine with exceptionally strong tool and workpiece mounts; B) Minimizing tool extensions to reduce vibration; C) Ensuring the tool nose radius is as short as necessary to maintain a sharp edge while providing sufficient strength; D) Strategically designing the machining sequence so that the depth of cut consistently stays below the work-hardened layer from the preceding operation.
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