| 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 |
UNRIVALED CORROSION RESISTANCE Alloy 2205 provides excellent resistance to chloride-induced pitting and stress corrosion cracking, ensuring long-lasting performance.
SUPERIOR ELEVATED TEMPERATURE RESISTANCE The ASME Boiler and Pressure Vessel Code specifies an upper temperature limit of 600°F (315°C). Prolonged exposure above this can lead to embrittlement.
EXCEPTIONAL MECHANICAL PROPERTIES Alloy 2205 boasts more than twice the strength of conventional austenitic stainless steels in the annealed condition. Available in cold-worked condition with yield strength exceeding 160 ksi, it maintains excellent toughness at temperatures as low as -50°F (-10°C).
SUPERIOR WORKABILITY Alloy 2205 can be expertly cold-formed. Due to its high work-hardening rate, intermediate anneals might be necessary. Annealing is strongly recommended after hot or cold forming 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 powerhouse, Jiangsu Daxun Alloy Co., Ltd. presents an all-encompassing one-stop-shop solution. From overseeing entire projects to executing specialized machining tasks, our capabilities are second to none. We excel in straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and an array of specialized services, ensuring your needs are met with precision and excellence.
Equipped with 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 exceptional range empowers us to craft the longest lengths and largest diameter pipes available, setting unmatched standards in manufacturing.
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Suppliers Alloy 2205 is a high-performance duplex stainless steel, enhanced with nitrogen to amplify its corrosion resistance, especially in welding applications. When in the annealed condition, Alloy 2205 exhibits more than double the strength of standard austenitic stainless steels and surpasses Alloy 316 in corrosion resistance under various conditions. Renowned as the most widely used duplex stainless steel, Alloy 2205 is also identified as UNS N31803 and 22-Chromium. This exceptional alloy features 22% chromium, 3% molybdenum, and 5-6% nickel, offering impressive fatigue strength and high resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in harsh environments.
At Daxun Alloys, we excel in producing stainless steel alloy 2205 tubing in diverse forms and sizes, including seamless, welded, precision, and capillary tubing. Adhering to stringent industrial standards from esteemed organizations like ASTM, ASME, ISO, UNS, and EN, our alloy 2205 products epitomize quality and reliability.
Dah Hsun Alloys stands as a trusted supplier of Duplex 2205 Stainless Steel Pipes. Our esteemed reputation as a stockist is backed by a vast inventory encompassing Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, Square and Rectangular Pipes, and Cold Drawn Stainless Steel Pipes. Since our inception in 1999, we have been dedicated to manufacturing Duplex 2205 Seamless and Welded Pipes, earning ISO 9001 certification. With over 25,000 tonnes of Duplex 2205 Stainless Steel Pipe in various specifications and coatings, we are one of China's largest ASTM A789 UNS S32205 pipe stockists. Starting as a trader and evolving into a stocking distributor, we now hold the title of leading Duplex 2205 Stainless Steel Pipe Manufacturer in China, sourcing pipes from top manufacturers in the United States and Europe. Our extensive stock includes SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS pipes, all available at competitive prices.
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 high-performance duplex ferritic-austenitic stainless steel containing 22% chromium, 3% molybdenum, and 5-6% nickel. As the most widely used duplex stainless steel grade, it boasts a yield strength double that of regular austenitic grades. With exceptional fatigue strength, Duplex 2205 excels in resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion under harsh conditions.
Most Duplex 2205 steel pipe manufacturers recommend a maximum hot forming temperature range of 2010 to 2100°F (1100 to 1150°C). If the workpiece is not uniformly heated, there is a risk of cracking in the cooler areas.
Duplex 2205 Stainless Steel Tube shines in its exceptional formability across diverse manufacturing processes. However, its impressive strength can pose challenges. Even with robust equipment, the increased springback due to Duplex 2205's high tensile strength must be carefully managed.
Machining Duplex 2205 is slightly more demanding compared to the 300 series austenitic stainless steels. It requires greater cutting forces, leading to rapid tool wear. To achieve optimal results, follow these guidelines: A) Utilize a powerful, rigid machine with firm tool and workpiece mounts; B) Keep tool extensions minimal to reduce vibration; C) Maintain the tool nose radius at the shortest necessary length for a sharp carbide edge with sufficient strength; D) Design machining sequences so the depth of cut remains below the work-hardened layer from previous operations.
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