| 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 boasts exceptional resistance to chloride-induced pitting and stress corrosion cracking, ensuring longevity and durability.
ELEVATED TEMPERATURE RESISTANCE The ASME Boiler and Pressure Vessel Code stipulates an upper-temperature limit of 600°F (315°C). Prolonged exposure to higher temperatures can result in embrittlement.
MECHANICAL PROPERTIES Alloy 2205 offers more than double the strength of conventional austenitic stainless steels in the annealed condition. It can also be supplied in the cold-worked condition with yield strength exceeding 160 ksi. It retains excellent toughness at temperatures down to -50°F (-10°C).
WORKABILITY Alloy 2205 can be effectively cold-formed. Due to its high work-hardening rate, intermediate anneals may be necessary. Post-forming annealing is recommended to achieve optimal stress corrosion resistance.
Our forming capabilities are unparalleled, featuring state-of-the-art extrusion and cold working assets for tube and pipe manufacturing. We proudly house one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
As a vertically integrated manufacturing powerhouse, Jiangsu Daxun Alloy Co., Ltd. offers a comprehensive one-stop-shop solution for all your project needs. Whether it's overseeing an entire project or meticulously handling specific machining tasks, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, precision machining, laser welding, polishing, turning, and a multitude of specialized services.
With our state-of-the-art vertical and horizontal presses ranging from 12,000 to 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. boasts the industry's most comprehensive pipe extrusion capabilities. This unparalleled capacity allows us to manufacture the longest lengths and the largest diameter pipes available in the market.
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Suppliers Alloy 2205 is an exemplary duplex stainless steel, augmented with nitrogen to significantly enhance corrosion resistance, especially in welding applications. In its annealed state, Alloy 2205 boasts more than double the strength of typical austenitic stainless steels and surpasses Alloy 316 in corrosion resistance under numerous conditions. It is the most widely utilized duplex stainless steel. Known also as UNS N31803 and 22-Chromium, Duplex 2205 contains 22% chromium, 3% molybdenum, and 5-6% nickel alloy. This remarkable material offers superior fatigue strength and exceptional resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion even in the most challenging environments.
At Daxun Alloys, we meticulously produce stainless steel alloy 2205 tubing in an array of configurations including seamless, welded, precision, and capillary tubing. Adhering to stringent industrial standards from ASTM, ASME, ISO, UNS, and EN, our alloy 2205 products epitomize quality and reliability.
Daxun Alloys stands as a trusted supplier of Duplex 2205 Stainless Steel Pipes. As a distinguished stockist, our inventory includes Duplex 2205 Round Pipes, Duplex 2205 Square Pipes, Duplex SS 2205 Polished Pipes, Duplex 2205 Electro Polished Pipes, Duplex SS 2205 Square and Rectangular Pipes, and Duplex 2205 Cold Drawn Stainless Steel Pipes, all housed at our facility in China. As a leading manufacturer of Duplex 2205 Stainless Steel Pipes since 1999, we are ISO 9001 certified and boast an extensive stock exceeding 25,000 tonnes in various shapes, sizes, and coatings. Our status as a premier ASTM A789 UNS S31803 Seamless Pipe exporter and Duplex 2205 Stainless Steel Pipe manufacturer is unparalleled in China. Initially established as a 2205 Duplex Stainless Steel Pipe Trader, we have evolved into a prominent stocking distributor. Our expansive inventory includes 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. We proudly offer 2205 Duplex Stainless Steel Pipes at the most competitive prices 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 superior duplex ferritic-austenitic stainless steel, comprising 22% chromium, 3% molybdenum, and 5-6% nickel. It is the most widely utilized duplex stainless steel grade, boasting a yield strength double that of standard austenitic grades. It excels in fatigue strength and offers outstanding resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion even under the most severe conditions.
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 than the bulk, increasing the risk of cracking.
Our Duplex 2205 Stainless Steel Tube stands out with excellent formability across various manufacturing processes. However, its high strength can present challenges. Even when using powerful equipment, the significant springback caused by the grade's high strength must be meticulously considered to ensure optimal results.
Machining Duplex 2205 is more demanding than working with 300 series austenitic stainless steels. It requires higher cutting forces, which lead to quicker tool wear. Consider these essential guidelines for effective machining: A) Utilize a robust, rigid machine equipped with very strong tool and workpiece mounts; B) Minimize tool extensions to reduce vibration; C) Maintain a short tool nose radius to keep the carbide sharp and strong enough; D) Strategically plan machining sequences to ensure the depth of cut consistently comes below the work-hardened layer from the previous step.
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